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DSG Flash

dsg flash
Pricing: $399.00



Kermatdi is pleased to offer the result of months of development and refined with "seat time"... the best transmission control upgrade available for your TDI. Our DSG flash greatly improves the driving experience.


Overall benefits (all modes):

  • Increased torque limits so overall operation is smoother during shifts.
  • Improved shifting strategies make the car drive more like you would if it was a manual transmission.
  • The engine is kept in the torque band where it is more responsive and efficient.
  • Each of the operating modes (D, S, manual) work more like you would expect them to.
  • Higher power handling with increased main pressure.
  • Less delay or "lag" when starting from a complete stop.


The complete character of the driving experience is changed. Driving is much more intuitive and engaging. This is a visceral feeling that can't easily be explained with a few written words: It must be experienced.


Factory Eco mode: ("D" or "Drive') : The stock factory transmission tuning has some shortfalls from an enthusiasts point of view.

  • Shifting is too slow and sometimes the transmission feels like it can't make up it's mind what gear it wants to be in
  • Shifting often hangs in between shifts ("hunting") and the extra torque from engine tuning can make this more pronounced.
  • Upshifting happens too soon in the rpm band. This causes the car to bog down below the peak torque area.
  • Upshifting in rapid succession- keeps the rpm well below the torque area.
  • When extra power is requested at the pedal, the transmission is reluctant to downshift. And the car stays at 1100-1200 rpm unless the kickdown switch is engaged at WOT. This causes the car to feel sluggish.
  • Full throttle holds too long, well past the power peak.
  • There is a long delay upon initial throttle application before the car starts to move.


KERMA tuned Eco Mode: A great improvement! The car drives more like it would if it was a manual transmission under the control of the driver.

  • Shifting is much quicker, very crisp and satisfying.
  • No hanging between shifts. Nice positive engagement upon gear changes.
  • The upshifts are held until slightly higher rpm. The upshift keeps the engine squarely in the peak torque band- where it is more responsive and satisfying to drive.
  • Downshifts are much more responsive to the throttle, but not overly so. It's as if the transmission can finally understand when you want more power, keeping you squarely in the fat part of the torque band.
  • Max rpm for upshifts is lower, which keeps the engine in the more responsive part of the power band after the shift.
  • Immediate response when starting from a full stop. No more delay or lag!
  • If RPM gets too low, downshifting is automatic to keep the engine from bogging . Also assists engine braking!


Factory Sport mode ("S"): Somewhat awkard to drive on the street.

  • Most of the same problems as Eco mode, but instead of being too quick to upshift, just the opposite happens: It practically "refuses" to shift into the next gear!
  • Not responsive to throttle inputs when rpm gets too low. This causes severe bogging and there is a reluctance to downshift when power is requested.
  • RPM is held way too long under full throttle, well past the power band, resulting in slower overall acceleration.


KERMA tuned Sport mode: Better driver control over the transmission, more like a "true" sport mode should be. Many of the same problems are solved as in "eco" mode, with some notable differences. The car drives like a rally car.

  • You can more easily cause an upshift by lifting the throttle. RPM still holds longer than eco mode, but it's not "locked in" to where it won't upshift.
  • As RPM starts to drop too low, automatic downshifts keep the engine in the power band.
  • Very responsive to throttle inputs and the behavior seems telepathic to what the driver intends to do. Downshifts are designed to keep the engine in the best part of the power band.
  • Max throttle shifts happen at the power peak and this lands the engine in a much more responsive area going to the next higher gear.


Factory Manual mode: Kind of a misnomer, not a true manual mode.

  • Way too eager to downshift, (making dyno runs difficult for example).


KERMA tuned Manual Mode: A "true" manual mode!

  • Will NOT downshift until 1100 rpm, and then only with throttle input.
  • Will hold rpm past redline.
  • Just like a manual transmission!



Requires a $1000 refundable depost. We will ship the tuning module to you to flash your car. After you flash your car just send it back for your refund.

Fits: Mk5 2009 and up, Mk6 Jetta, Golf, Beetle. Jetta sportwagen, AUDI A3 TDI, B7 Passat with DSG transmission

A recent email from one of our satisfied customers


"Upon further review and testing of the KermaTDI DSG tune, I have to take my hat off you. It is like a new car. I very much like this, and likely saved the car for me. The I actually get a gear when I want it. The car now seems like it is faster to accelerate than it was before. So, stepping on the accelerator immediately drops a gear with no lag and off the car goes. I love it. The car is 200% more drivable. I am quite pleased. For me, the previous tune was so bad, that I dare to say that it could be seen as a safety issue. With the Kerma DSG tune, the actually moves, and gets out of its own way, as before it would, but only with severe lag, then neck snapping downshifts. It was bad. Now it is great... how many times do I have to repeat it. Additionally, like the description for the tune states, the car is kept in a higher rpm band, or lower gear, keeping the driver in a better state of acceleration, rather than the car bogging out in highest gear. "


  • dsg flash
  • dsg flash
  • KermaTDI
  • New

Shipping Information

  • Item Requires Shipping
  • 6.0 lbs.
  • W5.0000” x H5.0000” x L5.0000”

Customer Reviews

Comment Total Reviews (5)

The Whole Package
  • Currently 5/5 Stars

Reviewed by: Obrion06/01/2017 06:00AM

Purchased from: KERMATDI

Out the gates I did the DSG with the Kerma tune and it is amazing. A little bit of a bugger trying to get down to read from the transmission plug but after Kerma works their magic you go back in via the OBD plug so there is no worries. If you can do both purchases at the same time you should really just knock them both out.

A must upgrade for any TDI enthusiast
  • Currently 5/5 Stars

Reviewed by: Guest01/19/2016 07:00AM

Purchased from: KERMATDI

I just matched my kerma tune with their DSG tune. This is a definite must! The process was very simple. Much like using the Qpro, you connect the supplied connector to your transmission data port under your air intake box and download the factory info from the transmission and upload it. The software is sent to you in a link along with easy to follow instructions. Then simply email it to kerma tuning and in a few hours or less you will have your performance tune. Upload is simple, you can now upload it via your obdII port.

The new tune is great. In D, it keeps your rpm's in peak performance range to help you get better mpg, increases available torque (you can really feel it), and firms up the shifts. The spot mode is a whole different beast. It keeps your rpm's at peak torque and snaps the rpm gauge when you get on it. It also holds rpm's better and decelerates like a dsg should. The shifts are much more firm without feeling to rough while still pushing you back into your seat. It now performs like running in manual mode without the lag or sloppy slow shifts.

Fixed so many things
  • Currently 5/5 Stars

Reviewed by: Guest07/04/2016 06:00AM

Purchased from: KERMATDI

I can see what gear I'm in. It doesn't lug anymore. Mileage increased. Launch control is scary fast and since I don't have the $ to replace tires, I don't do it often. Sport mode is way fun now and manual actually keeps it in the gear you choose and doesn't auto up or down shift for you. I know if wasn't crucial to have this but after tuning it, I couldn't resist.

Amazing tune
  • Currently 5/5 Stars

Reviewed by: Guest08/23/2016 06:00AM

Purchased from: KERMATDI

I had a 2010 TDI tuned then I installed the dsg flash and it made a world of difference! Definitely a must have! Money well spent

2015 Passat TDI - Did DSG and Tune
  • Currently 5/5 Stars

Reviewed by: Joseph05/29/2018 01:07AM

Product ownership: Less than 3 months

Purchased from: KERMATDI

I ordered the Q-Pro tune module for my 2015 DSG Passat EA288. I was unhappy with the OEM tune, as it was like walking compared to my older 2012 Passat DSG that VW bought back.
I ordered both the engine tune and the DSG tune together, but due to the wait list on the DSG equipment, I had to wait for the DSG tune.
The QPRO procedure was straightforward. I downloaded the SW from a link they provided in the introductory email. I installed it on my laptop. After I plugged the QPRO module in my OBDII Port and downloaded the car's original file, I used the software on the laptop to get the file, so I could email it out to Kerma. The turnaround was fast. I uploaded the file to the QPRO while on the road, and uploaded the new file on my ECU while at work (took 20 min or so).
My car came alive after this tune. While waiting for the DSG tune equipment to come, I drove the car for a few weeks. I, like others noted the the shudder when on the pedal, while the old DSG tune kept the car in to high of a gear. Since the DSG tune, I haven't noticed that issue, as the new DSG tune keeps the RPM's up higher than the old DSG tune.
This has made for a great upgrade to the Passat. I recommend that both tunes be installed. It makes for a more competent driving experience. Swipe your card, just do it!

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