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2018 Audi S3 7 Speed Dsg Transmission

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For decades, automatic transmissions have been viewed as the antonym of performance by most automotive enthusiasts. Ability-sapping torque converters, glacially slow shifting, and commuter feedback described every bit vague at best, are some of the central complaints about older 'traditional' automatics. With the DSG transmission, a dual-clutch automatic, Volkswagen and Audi revolutionized the industry, providing an efficient pick that offers reliability and race motorcar-like performance for the masses.

DSG Transmission Guide Sections

1. What is a DSG Transmission, & How Does It Work?
two. History Of The DSG Transmission
3. What Is The Deviation Between Volkswagen DSG, Porsche PDK, Audi Due south Tronic, & BMW DCT?
4. DSG Transmission Specs, Details, & Codes
5. VW/Audi Models & Years That Tin Be Equipped With A DSG Transmission
6. Mutual Problems Of The DSG Transmission
7. Mutual Maintenance On DSG Transmissions
8. DSG Transmission Oil Service Information
ix. DSG Transmission Functioning Upgrades
10. Important Torque Specs For The DSG Transmission

What Is A DSG Manual, And How Does Information technology Work?

DSG is the Volkswagen marketing acronym for their family unit of dual-clutch transmissions or DCT. DSG stands for "Direkt-Schalt-Getriebe," or direct-shift gearbox. The VW DSG transmission is similar to all other common DCT designs in that information technology is effectively two separate electronically controlled transmission transmissions built into i.

dsg-transmission-animation-4

The DSG combines the best attributes and efficiency of a standard transmission manual and the ease of utilise of a more traditional automated. DSG transmissions tin be operated in a fully automated mode, where the computer decides when and how to shift, or in a semi-automatic fashion, where the commuter uses either the gearshift shift lever or steering wheel-mounted paddles to select the desired gear. DSG and DCT transmissions accept been a game-changer in the automotive world and in performance circles. Rarely has i component been able to increase both efficiency and performance with almost no downside.

01_VW Audi DSG S Tronic DCT transmission technical drawing

All Volkswagen DSG transmissions are a transaxle design, which means that the same transmission case houses both the gears, the final drive, and differential in one unit, with shared oiling and lubrication. Much like a standard manual transmission, a DSG-equipped vehicle has a flywheel, which mates to the input shaft of the manual, and is engaged by a clutch. This transfers ability from the engine, through the transmission, and finally to the drive wheels.

dsg-transmission-animation-1

02_VW Audi DSG S Tronic DCT transmission input shaft

As you would look past the proper name "dual-clutch manual," the DSG has 2 clutch packs, also every bit two separate input shafts. Both are a concentric pattern, which means that i fits over the peak of the other. The first clutch pack engages the odd gears of 1, iii, and 5, while the other engages the even gears of 2, four, and 6. The two clutch packs are designated equally K1 and K2.

dsg-transmission-animation-2

03_VW Audi DSG S Tronic DCT clutch pack drawing K1

04_VW Audi DSG S Tronic DCT clutch pack drawing K2

The clutches in most DSG transmissions are a 'moisture clutch' pattern, which means that the plates and friction rings are lubricated and cooled with transmission fluid, actuated via hydraulic force per unit area generated by a mechanical oil pump, and practical by the Manual Control Unit of measurement (TCU). VW calls this the Mechatronic unit of measurement, and information technology is the brain backside the brilliance of the DSG transmission.

05_VW Audi DSG S Tronic Mechatronic unit

Since the Mechatronic unit finer has 2 transmissions to piece of work with, information technology is able to pre-select the adjacent gear that you lot need before engaging the clutch and performing the shift. It simultaneously disengages one gear as it engages the next, resulting in that perfect power delivery. Where the DSG shines is in its power to evangelize both shine and lightning-fast shifts, no matter the state of affairs. From loafing along in driver traffic to hitting back roads or race tracks on the weekend, information technology tin can do it all.

dsg-transmission-animation-3

Continued via the vehicle's reckoner Tin can motorbus system, the Mechatronic works in conjunction with other control units such every bit the ECU (Engine Control Unit) and the ABS braking organisation. It has a multifariousness of inputs to decide how and when to shift, such as vehicle speed, engine speed, throttle position, brake force per unit area, and thou-strength measurements from the accelerometers in the car. The Mechatronic unit can judge with remarkable accuracy which gear y'all're going to want next, whether you are accelerating, braking, or cornering. It besides knows how hard and fast to make the shift, and if it should upshift or downshift, using the same sensors and parameters.

06_VW Audi DSG S Tronic power delivery diagram

For example, if you're just easing along in traffic and non accelerating or braking with a lot of strength, the transmission will work its way up or downward through the gears hands, ensuring shine performance and shifting at low revs to maximize fuel efficiency. A DSG-equipped vehicle driven gently will use less fuel than the same auto equipped with a transmission.

However, if you printing the accelerator pedal downwardly similar when yous merge onto a busy highway, the Mechatronic unit sees the increased power produced by the engine and holds the gear longer, or performs a downward-shift depending on the electric current gear and RPM, ensuring faster acceleration. It besides volition make the shift to the side by side gear more than quickly, with a faster and more precipitous appointment of the clutch. A DSG transmission can perform a complete shift in around 200 milliseconds and can shift more quickly than the all-time drivers in a like manual transmission vehicle.

How much faster? Depending on the verbal trim level, the DSG equipped Mk7 GTI is virtually two-tenths of a 2d faster to sixty miles per hour at 5.8 seconds on average, compared to 6.0 seconds for the manual. Similarly, it is about ii-tenths of a second faster in the quarter-mile, averaging 14.3 seconds over 14.5 for the manual transmission Mk7 GTI.

Most DSG-equipped models likewise feature a 'Sport' mode in improver to 'bulldoze' or 'manual' modes. Sport mode changes the programming to be a flake more than ambitious and non equally focused on maximum efficiency and miles per gallon. The event is that it shifts faster, holds gears longer, downshifts to make employ of engine-braking, and is mostly more than responsive for sporty driving. On many vehicles, Sport manner may too alter the responsiveness or power of the engine, firmness of the suspension, or brand other changes to raise the driving feel.

There is one side-event of the fast-shifting on DSG-equipped vehicles, which people tend to either love or detest. The "DSG Fart," equally it'due south known in most enthusiast circles, is a loud 'cleft' from the exhaust which occurs in between shifts on hard dispatch.

Although this is fairly muffled on manufactory vehicles, the more than gratis-flowing the exhaust, the more likely you lot are to hear it. The audio itself is the result of the engine computer pulling timing from the ignition cycle when the shift occurs; This allows the engine RPMs to fall appropriately, the shift to occur, and for the adjacent gear to be engaged smoothly. A pocket-sized amount of unburned fuel passes into the frazzle on this process and ignites, creating this sound. This timing cut is the same reason you lot hear a loud pop on upshifts from race cars equipped with sequential or DCT transmissions.

For those of us who like to imagine we're driving a race auto while nosotros're running errands or commuting to work, it can add together some fun to an otherwise wearisome bulldoze. Some of the newer cars from Volkswagen and Audi tend not to exercise this as easily every bit early models thanks to changes in transmission design, engine specification, and programming. Regardless, if the idea of a bombastic auto puts you off a bit, non to worry. If y'all don't modify the frazzle system from the factory specification, it will rarely, if e'er, exist aural.

History Of The DSG Transmission

07_Audi TT DSG S Tronic 3.2 Quattro VR6

The Volkswagen DSG, as nosotros know it, debuted in the commencement-generation Type 8N PQ34 Audi TT, in the 2004 TT 3.ii Quattro. Volkswagen didn't provide the DSG as an option for their own vehicles until mid-2005, in the then-new Type 1K PQ35 Mk5 Jetta TDI. The DSG is a perfect match for a torquey turbo diesel engine and has been the go-to automated option on most VW or Audi TDI cars since.

08_VW Mk5 Jetta TDI DSG PD side

In 2006, the full Mk5 line upward launched in the United states of america and added the DSG manual as an option on the sporty GTI 2.0t and GLI ii.0t versions of the Rabbit/Golf and Jetta.

A vehicle equipped with a DSG manual volition have a traditional automated-fashion gear selector with a 'PRND' indicator. Virtually but not all models volition have "DSG" or "Due south Tronic" branding on the gear selector.

09_VW Audi DSG S Tronic gear selector

Volkswagen and Audi have typically used DSG and Southward Tronic DCT transmissions in their more sporty models, such as GTI, GLI, CC, and select R models from VW, nigh Due south and RS models from Audi, and well-nigh all TDI-powered vehicles from 2006 on. There are some models that gained or lost a DCT choice depending on the yr and model options, then exist certain to double-bank check if you're looking to purchase a car and are unsure if it is equipped with a DSG or S Tronic transmission.

What Is The Difference Between VW DSG, Audi S Tronic, BMW DCT, And Porsche PDK?

Fundamentally, there are no major differences between the dual-clutch transmissions offered by the diverse German auto manufacturers.

Porsche PDK

10_Porsche 991 911 GT3 3.8

Porsche wins the award for the hardest to pronounce proper noun with "Porsche-Doppelkupplungsgetriebe" (Porsche double-clutch transmission), which is what PDK actually stands for. PDK operates in the same way as all other dual-clutch transmissions simply is known to be one of the almost refined and all-time-performing DCTs on the market. Similar to VW and Audi designs, PDK transmissions are all transaxle designs. Porsche is notable for having adult a PDK manual for racing utilize dorsum in the early-1980s equally function of their 956 / 962 Group C program. The PDK didn't prove to exist reliable enough at the fourth dimension merely has since been used in a diverseness of the entry-level Cayman GT4 machines from Porsche. Similarly, Volkswagen DSG and Audi S Tronic are both used on mill-built race cars, including our own Volkswagen GTI TCRs.

Audi S Tronic

10_Audi RS5 Sportback 3.0t S Tronic

Due south Tronic is simply Audi's marketing term for DCT-equipped vehicles. Audi's South Tronic and Volkswagen's DSG are identical in transverse powertrain vehicles, such equally the Audi TT, TTS, TT RS, A3, S3, and RS3. Audi's more sporty longitudinal powertrain vehicles such as the S4 3.0t, S5 3.0t, RS5, and S6 4.0t are as well offered with S Tronic transmissions.

BMW DCT

11_BMW M4 GTS front

BMW DCT differs but in that information technology is not a transaxle design like those from VW, Audi, and Porsche, but operates on the same principles and with the same principal components. BMW models have the concluding drive and differential divorced from the clutches, gear set, and fluids. The BMW DCT transmission is simply offered on rear-wheel-bulldoze models in the BMW lineup and is not an choice on whatever of the xDrive variants. The BWM DCT manual is primarily offered on performance models such equally the One thousand-badged cars and has received similar accolades to Porsche's PDK for being one of the most responsive DCT transmissions on the market.

DSG Manual Specifications, Details, & Codes

DQ250

11_VW Jetta TDI Cup DSG

The start production iteration of the DSG manual, the DQ250, is a 6-speed transverse blueprint utilized in a wide range of vehicles in the Volkswagen Audi Group. Verbal specifications such every bit gear ratios and last bulldoze volition vary depending on the exact transmission lawmaking, merely the design, function, and cadre components are all very similar. As technology has improved, the Mechatronic unit has been upgraded and improved, so the newest examples tin can shift faster, smoother, and are typically less likely to experience Mechatronic problems. The all-wheel-bulldoze 4MOTION and Quattro DSG or Due south Tronic equipped DQ250 variants utilize an outboard transfer case design, and are otherwise the aforementioned as the FWD examples.

FCp Euro GTI TCRs Las Vegas Motor Speedway

The DQ250 is the most commonly used DSG pattern. With factory Mechatronic programming, information technology'south rated to handle upwardly to 295 lb-feet of torque. The FCP Euro GTI TCRs were delivered with a motorsport variant of the DQ250 , which shares almost all of its components with the street version.

DQ500

13_Audi 8S TT RS 2.5t Evo S Tronic DQ500

The DQ500 is the beginning 7-speed transverse design sold in the USA past Audi, and also utilizes a wet clutch blueprint similar the DQ250. Information technology was originally used in VW Transporters and other more industrial designs in Europe, which require high-torque handling, but has been adapted for utilize in the ultra-high performance Audi TT RS and Audi RS3 2.5T. With factory Mechatronic programming, the DQ500 is rated for upwards to 442 lb-ft of torque.

DQ381

15_VW Mk7.5 MQB GTI Rabbit Edition DSG DQ381

The newest transverse offering is the seven-speed DQ381, as introduced in the 2018 VW Golf R and 2019 VW GTI. It shares much of its design with the DQ500 and is rated for upward to 317 lb-ft of torque with manufacturing plant Mechatronic programming. Both the DQ500 and DQ381 transmissions offer even better fuel efficiency potential than the DQ250 with the addition of the seventh forward gear, forth with their increased torque capacity.

DL501

Audi introduced the longitudinal DL501 7-speed S Tronic transmission in a diversity of their more performance-minded sedans and CUVs such every bit the S4, S5, and S6. The DL501 differs from all of the transverse type DQ transmissions in that it has divorced lubrication systems. The oil for the gearing and differentials is dissever from the oil, which is utilized past the clutches, Mechatronic unit, and pump. This should, in theory, provide longer life and more reliability as there is no cantankerous-contamination of fluids or particles between the two separated sections.

DL800

Audi R8 5.2 V10 Plus S Tronic

The R8, Audi'southward top-line sports car, received an Due south Tronic gearbox pick in 2012 with the introduction of the 5.2 V10 engine. The DL800 is a vii-speed DCT transmission, utilized just in the Audi R8 and sister model from Lamborghini, the Huracan. This same street-derived S Tronic manual is used without any internal changes in the R8 GT4 race car, lending further credibility to both the performance and reliability of the VW / Audi DCT transmission family.

VAQ Active Differential

All transverse DSG variants sold in the U.s.a. are compatible with VW's VAQ Active Differential, which is an add-on, active, multi-plate limited-slip differential. Information technology functions very similarly to the 4MOTION and Quattro Haldex systems used on the all-wheel-drive transverse cars. A computer controls the torque split between the left and right sides via a hydraulically controlled clutch pack.

VW/Audi Models & Years That Tin Exist Equipped With A DSG Transmission

Volkswagen

Audi

2005.5-2006 Mk5 Volkswagen Jetta TDI DSG 2004-2006 8N Audi TT 3.two VR6 Quattro
2006-2009 Mk5 Volkswagen Golf game GTI DSG 2008-2010 8J Audi TT 2.0t FWD S Tronic
2007 Volkswagen Mk5 Golf GTI Fahrenheit Edition 2009-2014 8J Audi TTS 2.0t Quattro
2006-2009 Mk5 Volkswagen Jetta GLI DSG 2010-2014 8J Audi TT 2.0t Quattro
2008 Mk5 Volkswagen Golf game R32 2015-2018 8S Audi TTS two.0t Quattro
2009-2010 Mk5 Volkswagen Jetta TDI DSG 2018-2020 8S Audi TT RS
2009-2010 Mk5 Volkswagen Jetta Wolfsurg DSG 2006-2013 8P Audi A3 2.0t FWD South Tronic
2009 Mk5 Volkswagen Jetta SportWagen TDI DSG 2008-2010 8P Audi A3 three.2 Quattro S Tronic
2010 Mk5 Volkswagen Jetta TDI Cup Edition DSG 2010-2013 8P Audi A3 TDI S Tronic
2010-2014 Mk6 Volkswagen Golf GTI DSG 2010-2013 8P Audi A3 ii.0t Quattro S Tronic
2012-2018 Mk6 Volkswagen Jetta GLI 2015-2020 8V Audi S3 S Tronic
2011-2016 Mk6 Volkswagen Jetta TDI DSG 2017-2020 8V Audi RS3
2010-2014 Mk6 Volkswagen Jetta SportWagen TDI DSG 2010-2012 B8 Audi S4 S Tronic
2015-2017 Mk7 Volkswagen Golf GTI DSG 2013-2017 B8.5 Audi S4 S Tronic
2018-2020 Mk7.v Volkswagen Golf GTI DSG 2018-2020 B9 Audi S4
2015-2017 Mk7 Volkswagen Golf R DSG 2013-2017 B8.5 Audi S5 S Tronic
2018-2020 Mk7 Volkswagen Golf R DSG 2018-2020 B9 Audi S5
2007-2010 Volkswagen Eos three.ii VR6 DSG 2010-2015 B8 Audi RS5
2007-2010 Volkswagen Eos 2.0t DSG 2018-2020 B9 Audi RS5
2015-2016 Volkswagen Eos 3.2 VR6 DSG 2014-2020 4S Audi R8 5.two V10 S Tronic
2015-2016 Volkswagen Eos 2.0t DSG 2013-2020 C7 Audi S6
2009-2010 B6 Volkswagen Passat 2.0t DSG
2012-2015 B7 Volkswagen Passat TDI DSG
2018 B7 Passat GT three.6 VR6

Common Problems Of The DSG Transmission

For the vast majority of owners, Volkswagen DSG transmissions have proved to exist remarkably reliable. Though, similar whatever other type of manual, they are not without flaws and occasional problems. With proper service and maintenance utilizing high-quality parts and fluids, withal, a DSG transmission volition provide years and many thousands of miles of reliable operation. As they have been adult and updated over the years, the DSG-family has just go more than reliable.

Crude Or Hard Shifting

Volkswagen Passat TDI DSG sedan

The virtually frequent complaint from most DSG owners is clunky or hard shifting in sure conditions or at sure throttle positions. While this can be indicative of a transmission problem, accompaniment components such as engine and manual mounts should be checked and ruled out earlier looking for more significant problems. Likewise, the driveline components such as CV axles and wheel bearings should be checked and confirmed as good, as they tin also result in other noises and vibrations if they are worn and need replacement. This complaint is more oft levelled at the transverse DQ250 models rather than the newest DQ500 or DQ381, or longitudinal DL501.

If you are used to driving a manual transmission vehicle, you volition discover that a more direct, decisive driving mode will assist to avoid clunks and provide the smoothest driving feel. Despite the speed with which the DSG can go from gear to gear, inconsistent throttle awarding or too many inputs in quick succession tin 'misfile' the Mechatronic unit and result in some of the common driveability complaints. Essentially, the Mechatronic unit is e'er trying to guess which gear you will need next, whether that is one up or one down from where you lot currently are.  Because it can only practice that then quickly, that shift may seem less smooth or more sudden, or slower, than what you lot normally experience—this is not a trouble, but a quirk of the system and how it works. Performance tuning, which nosotros will dive into later, can help to rectify this issue even when it comes to normal driving situations and event in smoother and better DSG drivability.

Flywheel Failure

21_Volkswagen Audi DSG S Tronic DCT flywheel_

In terms of existent bug, failure of the dual-mass flywheel is probably the nigh common wearable-related issue on DSG vehicles. Signs of a flywheel issue include failure to appoint gears from a stop, deadening or hard shifting, and in the most extreme cases, RPM-dependent vibration and audible noise. Due to the vibration of the diesel fuel engine, TDI models are virtually ordinarily affected by flywheel failure, with replacement often needed around 100,000 to 135,000 miles.

Gasoline engines typically can get much longer on mileage earlier requiring flywheel replacement, but results can vary depending on use. Worst-example scenario, failure to supersede a bad flywheel can result in damage to the bellhousing and parts of the transmission, so it is best to stop driving if you suspect a flywheel effect until you can diagnose and repair it. Afterwards replacement, proper adaptation and recalibration of the clutches are required for the best performance and render of smoothen shifting.

Mechatronic Unit Failure

Although it's non a widespread effect, the virtually serious and typically nearly expensive problem that tin arise on a DSG transmission is a failure of the Mechatronic unit itself. Failures tin can consequence in a number of issues, ranging from difficult or hasty shifting, failure to shift or engage from a terminate, or consummate and total transmission malfunction. In this example, the transmission goes into a 'limp style' with a limited number of gears bachelor for employ, or it may completely disengage the clutches to avoid damage, even while driving. Proper diagnosis with an electronic scan tool is the best and most accurate manner to begin the process of determining if at that place is a Mechatronic fault. Even in the instance of total Mechatronic failure, the physical manual itself, such as the gears, clutches, and differential, is typically not damaged in any way.

In that location have been recalls on a few DSG and S Tronic transmissions. Select examples of DSG-equipped VW models congenital between September of 2008 and Baronial of 2009 were manufactured with a bad batch of Mechatronic units. The fault is specifically with the transmission temperature sensor, which was prone to failure. The result ranged from a error on the dashboard, to the transmission automatically going into neutral even when 'drive' or 'reverse' is selected. Any vehicles in the affected range should take been repaired by now, but if non, an open recall repair should exist able to be performed by a Volkswagen dealer. Although they were not included in the recall, the 2008 VW Mk5 R32 also featured a college number of similar Mechatronic failures at that time.

Reconditioning of your original Mechatronic unit is a possibility, every bit is replacing information technology with a used example from a salvage yard. Yet, your results and the quality of repair may vary. These units are not typically able to be changed out unless the replacement is an verbal match for both the box code and version type. Scale and coding of the Mechatronic unit of measurement should always be performed later on replacement to ensure proper performance.

Unfortunately, both the flywheel failure and Mechatronic failure can result in a DSG transmission which does not shift gears or shift properly, and then it can be difficult to determine which issue you're dealing with if it is an intermittent trouble. Neither a flywheel replacement or a Mechatronic unit of measurement replacement is an inexpensive prepare, so be sure to diagnose properly before replacing either role.

DSG Transmission Clutch Pack Clothing

Volkswagen Audi DSG S Tronic DCT Clutch pack

The clutch packs themselves tin somewhen wear and require replacement; This is fairly singular and is usually the result of an underfilled transmission, failure to service the transmission fluid regularly, or extremely modified engines and heavy use such equally drag racing. With factory ability levels and programming, it is unlikely that the clutches will ever need to be replaced if the car is serviced properly. One pregnant do good of a moisture clutch is that it is tough to overheat them, and they are generally very long-wearing thank you to the lubrication of the hydraulic fluid.

One of the challenges of the DSG transmission is that Volkswagen considers the unit of measurement to be non-serviceable outside of the clutches, flywheel, Mechatronic unit, and lubrication & filtering systems. Internal repairs, although technically possible, are not like shooting fish in a barrel to perform. Part numbers, parts availability, and crucial information such as bearing shim tolerances and gear lash are not published. Fifty-fifty the case one-half bolt specs used to concur the transmission together aren't specified. Replacing the complete transmission is sometimes the simply solution if at that place are more meaning internal faults or problems.

Common Maintenance On DSG Transmissions

Fluid & Filter Service

FCP Euro Mk7 GTI DSG GRIDLIFE South Road Atlanta

The most important service to perform on any dual-clutch transmission is to proceed the fluid and filters replaced on schedule, with the best quality parts. Exact service intervals will vary depending on the exact vehicle year, model, and transmission lawmaking. Performance models such as the 8J TTS have a slightly shorter service interval from the factory than other models that utilize the same basic transmission. If you have a heavy human foot, have a highly modified car, or drive your car on the rail, y'all may want to consider shortening the service interval equally preventative maintenance.

If y'all are driving your DSG-equipped vehicle on rails days or in situations with extreme temperatures, it is possible for oil to exist pushed out of the overflow vent located on the top front of the manual instance. This is rare and may be a side-event of a slightly overfilled transmission. Although this is typically a very small amount of fluid, if it occurs with a decent corporeality of regularity or you're attending a lot of track days, it is worth checking the fluid level in betwixt events to ensure you are not running the organisation depression on oil. There are a handful of aftermarket DSG cooling solutions to assist eliminate or mitigate this.

Outside of the fluid service, DSG transmissions don't have whatever other regular maintenance requirements. Clutches and flywheels are service-gratis as long equally they are functioning correctly and will benefit from regular fluid changes. Related components such as engine and transmission mounts, should exist checked and replaced as needed, also equally the CV drive axles.

DSG Transmission Oil Service Information

Performing a transmission oil service on a DSG transmission  is the most important affair to ensure maximum life and maximum performance. If your vehicle is new to you lot, is within the DSG service mileage window, and has unknown service history, you should e'er perform a DSG transmission oil service to ensure it is up to appointment. It's a adequately straightforward process and easy to perform in your driveway with the right tools.

DSG Transmission Oil Service Interval

Every vehicle from Volkswagen or Audi will include a recommended service interval in the owner'southward manual. On the vast majority of models, a DSG transmission oil service is required every twoscore,000 miles. Audi specifies a slightly shorter interval of 35,000 miles on older transverse models such equally the 8J TTS and Audi A3. Conversely, Some of the newest models from Volkswagen equipped with the forepart-bike-drive DQ381 are now specifying an lxxx,000-mile service.

Although it isn't specifically mentioned by Volkswagen or Audi, a vehicle experiencing extremely heavy employ such every bit on-track functioning driving, competitive racing, or towing, may benefit from a slightly shorter change interval. Based on past experiences, continuing to abide past a forty,000-mile service interval even on the DQ381 transmission will likely provide the longest life from the gears, clutches, and Mechatronic unit. It'southward inexpensive insurance on such an expensive driveline component.

If your DSG transmission is experiencing slipping, hard shifting, or other drivability bug, a manual service could help to rectify these bug. A DSG transmission that is low on fluid will not function properly, and continuing to drive a transmission that is depression on oil may result in damage to the clutches, gear sets, or other internal components.

What Fluid And How Much Does The DSG Manual Require?

FCP Euro Volkswagen Audi DSG S Tronic DCT transmission service kit

About DSG manual services will require an approved DCT transmission fluid, transmission oil filter, sealing o-rings for the filter and housing, and a drain plug gasket . The longitudinal DL501 is equipped with a second, non-serviceable internal oil filter or screen which does not need to be changed during a normal service. The only time to replace or clean the internal filter would exist if at that place is known internal impairment or a large amount of metallic is present in the DCT transmission oil. The transmission pan has to be dropped to perform the service and volition crave additional gaskets and seals.

The transverse DQ250 requires somewhere between four and five liters of DCT oil to perform a transmission service. The larger longitudinal DL501 typically requires between seven and eight liters of DCT fluid. These two fluids are not necessarily interchangeable, so be certain that whatever fluid you lot are using is specified and approved for use in your exact model.

Tools Required to Perform a DSG Manual Oil Service

Performing a DSG transmission oil service requires a few standard hand tools and a few specialty tools to complete properly. Refilling occurs through the drain pigsty, which features a 2-stage drain plug. The fluid is transferred using a fill adaptor matched to either a fluid transfer pump or a gravity fill kit. After filling, the vehicle must be started, and the transmission fluid temperature needs to be brought up to 35C, as measured via a scan tool, and excess oil should exist immune to bleed before re-installing the final bleed plug.

Tool List

  • Fluid transfer pump with fill up adapter  or gravity fill kit with fill adapter
  • 14 mm hex drive socket or drain plug wrench
  • viii mm hex bulldoze socket  (long)
  • 24 mm  oil filter socket
  • 10mm socket or wrench  (battery terminals and battery tray)
  • 13mm socket (battery concur down)
  • Rachet (⅜" and ½" drive)
  • ⅜" Drive Extension
  • Torque wrench
  • Scan tool

DSG Transmission Performance Upgrades

The DSG transmission has admittedly inverse the landscape of operation tuning options for VW and Audi vehicles. Out of the box, they are strong, reliable, and offer nigh uninterrupted power delivery. With performance tuning of the Mechatronic unit, a whole new globe of possibilities is opened upward.

DSG/Mechatronic Tunes

A operation tune on a DSG transmission typically offers a few standard improvements of the factory programming.

First, the shift points and logic behind how and when, and how hard the transmission goes through the gears, is optimized more than for operation, response, and acceleration rather than pure fuel economy. This usually results in meliorate overall drivability and a more rewarding driving feel, as the car no longer seems eager to simply get to top gear as quickly as information technology can and loaf around at 1,200rpm. This translates into more fun behind the wheel with daily driving or with a spirited run on a dorsum road. Smaller changes, such every bit reduced pull-away filibuster, gear option displayed in the estimate cluster, and faster response from paddle-shift input, farther improve the driving experience.

Driveability is especially improved for vehicles that have had some kind of ECU upgrade or performance tune installed. When an engine is making more power and the TCU is not remapped for managing the increased power and torque, all of the decisions made by the TCU are thrown off, and information technology may upshot in less desirable performance. For example, for a mild increase in engine power, this means that there may be an occasional difficult shift, oddly chosen gear, or unexpected downshift depending upon the situation at hand.

Added to this, considering the Mechatronic unit is constantly monitoring and managing engine power output, it has the ability to interfere with the corporeality of ability that makes it to the basis. A performance DSG tune, even on stock programming, will unremarkably upshot in noticeably improved power output and commitment characteristics.

FCP Euro VW DSG Guide Mk5 TDI Cup Race Car

Since almost every aspect of a DSG manual is estimator-controlled, a performance melody can also increase the effective power treatment of the manual tremendously. A stock TCU matched to a highly modified engine may result in slipping clutches or even clutch damage. Past fine-tuning not merely the clutch pressures only also the timing and overlap of the gear changes, a performance tune tin ensure most-standard clutch life fifty-fifty with much higher torque outputs. Although most software companies don't charge per unit their DSG tunes with a specific number, it is mostly accustomed that a standard DQ250 with a performance tune tin can handle betwixt 400-500 lb-fit of torque on stock clutch packs depending on the tune. This is an increase of over 100-200 lb-fit over the factory rating with no other changes.

Most functioning tunes will also offer some kind of 'full transmission mode' where the TCU doesn't downshift automatically in the same situations where it normally would. Anyone who has driven an automatic transmission equipped motorcar can probably relate to the motorcar downshifting aggressively when all yous wanted was a tiny bit more passing ability. A operation DSG tune improves or sometimes eliminates that depending on your drive way and verbal tune.

FCP Euro VW DSG Guide TDI Cup Car

A functioning DSG tune volition as well typically provide the pick for a user-controlled launch command RPM. Some early DSG models had launch command defeated in United states of america models, so this essentially taps into that mill Euro-spec option and adds some adjustability for improve functionality. It is worth noting that for most front-wheel-bulldoze cars, the launch command option merely results in a futile try to control wheel spin without mucilaginous tires. On the all-wheel-drive models such as the Golf R, S3, TT RS, and RS3, launch control can turn them into absolute beasts off of the line.

DSG Transmission Software Tuning Companies

  • Unitronic
    • Shop Unitronic at FCP Euro
  • APR
    • Shop APR at FCP Euro
  • REVO
  • United Motorsport
  • COBB

Most performance tuning companies that as well offer ECU tuning will as well offer TCU tuning. Some of the virtually pop companies, such as Unitronic , April, REVO, and United Motorsport, have established dealer networks to back up their customers. Unitronic also offers a DIY flash at home selection via their Uniconnect cable , which makes it easy to change options or upgrade from the condolement of your garage or driveway. COBB is a newer player in the VW tuning world, which offers a similar flash-at-domicile option with their Accessport cable.

DSG Manual Hardware Companies

  • Dodson Motorsport
  • TVS Engineering
  • SSP Performance

Despite the out of the box immovability of the DSG transmission, at that place are upgraded hardware parts available for nearly models. For extreme power applications, performance clutch friction cloth is a pop upgrade. Kits are available from Dodson Motorsport, TVS Engineering, and SSP, and when combined with appropriate software, installing ane of these kits can heighten power handling to well over 700 lb-ft of torque. RS3 and TT RS drag racers take been quoted as putting more than one,300 bicycle horsepower (over 1,500 horsepower to the crank) through DQ500 gearboxes with upgraded components. Proper calibration and adaptation of the TCU is imperative afterward changing or upgrading the DSG clutch packs.

DSG Transmission Express-Sideslip Differential Upgrade Companies

  • Wavetrac
  • Peloquins
  • Quaife Applied science

A limited-slip differential is another popular upgrade, peculiarly for route racers and drag racers. The factory differential struggles to put downward ability evenly, specially at extreme power levels or while accelerating out of a corner, fifty-fifty with the VAQ active differential option. Most aftermarket differentials are a planetary gear torque-biasing blazon, which diverts ability to the bicycle with the most traction. This is the opposite of how the stock differential works. Popular brands include Wavetrac, Peloquin, and Quaife Engineering. There is a difference betwixt early on and late parking band gear designs, so if you are planning on upgrading the differential within your DSG manual, be sure to purchase the correct design.

As mentioned earlier, at that place are no published specs for begetting tolerances, fastener torque, or the associates process of the DSG manual. Be sure to accept all of the necessary information earlier tackling this chore, or ensure that the shop performing the chore for you is capable and knows what they're getting into.

Important Torque Specifications For The DSG Manual

  • Drain plug: 33 lb-ft (45 N m) (replace crush washer)
  • Spillover tube: two lb-ft  (24 inch-pounds / 3 N m)
  • DSG oil filter cap: fifteen lb-ft (20 North m)
  • CV Beam to output flange: 52 lb-ft (70 N 1000) (supersede)

The DSG transmission has been a game-changer for fans of Volkswagens and Audi vehicles. With proper intendance they offer versatile performance, efficiency, and have raised the bar for automated transmissions worldwide.

As we continue to acquire more about the DSG transmission through DIYs and projection builds, this guide will continue to evolve. For updates, be sure to check dorsum hither or the blog dwelling house page. If yous'd similar to learn more virtually Volkswagen/Audi systems, specific DIYs, news, and motorcar features, y'all can discover all of that on our Volkswagen and Audi hubs.

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