MQB Haldex Tuning
Here at RRP we have been super busy developing our own Gen 5 Haldex AWD Software upgrade and flashing tool known as Haldex.Flash. By creating an entirely new control strategy it has allowed us to improve power balance, cornering, and launch times.Â
Our software upgrade is available for all Quattro and 4Motion MQB vehicles made from 2014-2024 with the module part number 0CQ 907 554 X.Â
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In its stock form the Generation 5 Haldex unit will only send 30% of its power to the rear wheels under acceleration, although it does have the ability to send up to 50%. This is only achieved in certain situations such as wheelspin and for the most part leaves the car with a 70/30 front to rear power split. Â
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Our software allows a near perfect 50-50 power split between the front and rear wheels while under acceleration, this works wonders for overall performance in all forms of driving.Â
This is all achieved while keeping factory tolerances safe within the Haldex system. Vehicles with engine software benefit even more, the higher the power output the more prominent the front axle power is. This can lead to potential loss of traction, especially during launch conditions.Â
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Our upgrade is a must for improved handling, faster launches are simply an added benefit!Â
And if that wasn’t enough with our latest update users can now tune their own Haldex table in real time for specific use cases. This is a worlds first development and exclusive to Haldex.Flash only!
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- 50-50 Power split under acceleration for a sportier drive + tractionÂ
- Improved response times allowing faster torque transferÂ
- Switchable 2WD Mode via factory drive mode selectorÂ
- Fully customisable tuning table to live tune your own haldex
- Torque split is not limited at higher speedsÂ
- Developed within factory tolerances of the Haldex system and built for daily driven vehicles and track useÂ
- Up to a 65% power increase to the rearÂ
- New launch control strategy allowing faster launch times
- Pump adaptions are carried out via our tool so no need for separate diagnostic tool!
- RS3-TTRS SupportedÂ
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 We have carried out extensive testing in all road driving conditions as well as motorsports. During drag racing we found an average 60ft launch improvement of 0.08/0.10 secs depending on conditions and vehicle setup. Track work found cars where much more balanced during high speed cornering and corner exits. We even found use cases for cold weather conditions massively assisting ice and snow driving!
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*Audi RS3 8V and TTRS 8S Â (please note RS models will loose their G meter reading when tuned, the meter is only calculated and not a true reading. Our custom code does not allow space to retain this feature)
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Pricing starts at £399 installed at our Headquarters based in the south of England. Installation can also be carried out one of our approved partners listed below.Â
We also have a do it yourself tool available at the link belowÂ
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If you are a tuning shop or garage and wish to sell our Haldex software please click here to apply for an account. (Please only apply if you are a legitimate business user, personal applications will be removed)Â
CUSTOM LIVE TUNING NOW AVAILABLE
For the first time EVER users can set their own Haldex settings using our Live tuning feature. All on the stock module with no additional hardware!
Users can set Haldex Pump duty percentage vs vehicle speed and throttle position for ultimate control over your all wheel drive system. Our main tune is fully switchable at the click of a button and drive mode switchable FWD mode is still available. Simply program the new live tuning option via the latest Haldex.Flash program and you are away!Â
2WD MODE NOW AVAILABLE!
Eco / Comfort / Race mode, allowing true 2WD driving on demand — ideal for spirited driving, dyno work, and yes… burnouts.
• Switch using the OEM drive mode selector • Programable to Eco/Efficiency, Normal/Comfort and Race/Dynamic , other modes return to your tuned AWD behaviour • No extra hardware required • Only available with our full Haldex tune |
FREE upgrade for existing users If you already have Haldex.Flash, use your tool to update to the latest version to unlock Switchable FWD Mode. The feature will also be at no extra cost for new customers or dealers.  If you do not own a Haldex.Flash tool speak to your local installer to upgrade. |
SUPPORT LIST
- Â S3 Quattro 8V (2014-2019)
- Â A3 Quattro 8V (2015-2020)
- Q3 Quattro (2019-2022)
- TT/TTS Quattro MK3 (2015-2023)Â
- RS3 8V (2015-2020)
- TTRS 8S (2016-2024)
- Golf MK7 R (2014-2019)
- Golf MK7 Sportcombi (2013-2022)
- Golf Alltrack (2017-2022)
- T-Roc (2018-2022)
- Tiguan (2014-2022)
- Passat B8 (2015-2022)
- Arteon (2017-2020)
- Atlas (2018-2022)
- Octavia 4x4 (2013-2020)
- Superb 4x4 (2015-2020)
- Kodiac 4x4 (2017-2020)
- Karoc 4x4 (2017-2020)
- Leon 4Drive (2013-2020)
- Ateca 4Drive (2018-2020)
- Terraco 4Drive (2018-2020)
Vehicles with GEN 4 EA888 Engines are not supported, please send us your VIN if unsure.Â
BEFORE & AFTER GRAPH

FAQ's
 Users can visit one of our global dealers marked on the map below, or purchase our home tuning cable.Â
To use this cable you will need a windows PC and basic computer skills.Â
The process takes under 5 minuets and is completely reversible. Â
Absolutely not, its basically a scam!
These modules have a built in anti drone function that's available via UDS coding on the dealer tool and other diagnostic/coding tools such as VCDS. This functions sole purpose was to reduce vibrations and droning when fitted to different chassis models like the VW Tiguan and Audi S3 etc due to different harmonics.Â
The function allows the Haldex clutches to engage in a slightly different manner to reduce vibration when pulling away, this coding feature has been known for 12+ years and has no real measurable performance gain.Â
Various mobile coding tools have been labelling this as a Haldex tune/Upgrade which is simply not the case. This is only a coding change on the original software and not a replacement operating software like our offerings.Â
Our Haldex tune is a complete operating software replacement that is programmed over the top and replaces the factory software. Not just a coding change with minimal effect.
Not at all, infact on non 50-50 split cars our tune is actually improving the life of your clutch pack.Â
When the Haldex is disengaged or sending anything under 50% of its power the clutch pack is being slipped instead of being fully locked. This is the reason the Haldex pump can get blocked up with clutch material on a regular basis, from material that's been worn away during slipping.Â
Now its perfectly normal for these systems to slip the packs as power transfer is not needed all the time such as off throttle situations. However if under full acceleration anything under full engagement is slip, this is where our tune comes in ensuring a fully locked torque transfer during acceleration and thus less wear to the clutches.Â
The Haldex Pump itself is also well within its operating tolerance with our tune. The stock pump is also shared with the Audi R8/Lamborghini Huracan platforms which we regularly run 1000+Bhp with no pump failures at all. The pump is under 30% of its full capacity with our tune.
We have also inspected cars with our tune vs stock and found drastically less material stuck in the Haldex pump!Â
Nope! Think of this upgrade as strictly a handling upgrade, it improves the drive no matter the situation. You do not need to be pushing the car to its limit to find the benefits of the tune. Your cars dynamics will feel just as good on the road as it will the track!Â
However for those who need to be on the extreme limits of the system our custom tuning option allows full control of the tuning table.
Yes it will! Our software is loaded to the factory Haldex controller only so you can run our tune no matter your current ECU/TCU setup.Â
Absolutely! Our software not only improves torque transfer limits but how fast and when to apply torque. Along with revised launch control RS models benefit from our upgrade just as well as non 50-50 cars.
You can use the tool an unlimited amount of times once your car has a vin licence applied. You can also use the tool to flash other supported cars by purchasing additional vin licences in your user portal.Â
Nope, our software is built for fully operational Haldex systems, you should not be experiencing any front wheel spin even in dry launch conditions.
The Haldex system is relatively easy to diagnose but generally if you are having less or no engagement on the rear its down to a blocked/dead pump, failed Haldex module or low Haldex fluid after incorrect servicing.
Flashing our tune will not rectify these issues and in some cases will make it worse, ensure your system works before buying!
YES! We sell lots of units in snowy regions where traction is essential. We all know these cars are pretty good in cold conditions but the additional rear torque helps tremendously! Â
Our tune does not require an upgrade of the pressure relief valve spring for our standard tuning software.Â
However if requiring additional rear torque transfer for high power builds or our live tuning feature a spring upgrade is recommended for anything over 60% pump duty. We are in the process of releasing our own. Â
Using our live tuning option allows users to set their own Haldex pump duty table using vehicle speed and throttle position.
This can be done with the engine running for back to back testing. Â
Simply load up our tool and flash the tune+live tune option. Users can then head over to the custom tuning table within the app and setup their Haldex as they please. (Please note this is for experienced users only, if you are unsure what this table does then please use the normal tune or contact your tuner for help. We can not train people on how to tune this system)Â
*Full usage instructions are available on your account portal once purchasedÂ
HALDEX.FLASH USER PORTALS
For existing customers and dealers click below to visit your Haldex.Flash portal.

