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Transmission Control Modules and Actuators

We test, repair and exchange an extensive range of transmission Electronic Control Modules including, Clutch Actuators, Gear Selectors, DSG Mechatronics and CVT control units. All transmission systems are fully tested on our HIL (Hardware-In-the-Loop) vehicle test systems, this ensures that every transmission control unit that we rebuild meets or exceeds OE specifications.

Below is a small list of the most common failing transmission control modules that we cover.

If you do not see your transmission unit listed then please see our product catalogue for our full range.

Volkswagen DSG DQ381 Mechatronic Failure

Fitted to Audi/VW vehicles built on the MQB platform this DSG mechatronic will fail and cause serious gear selection issues...

Seven speed DSG 7 Gearbox Control Unit Fault. (VAG vehciles)

This DSG 7 control unit is a very common failure for VAG (Volkswagen Audi Group) vehicles built between 2003 – 2016 fitted with the DQ200 Direct Shift Gearbox (DSG). Failure will cause a complete loss of drive and an inability to select any gears, this will also cause the EPC light to remain illuminated and the gear symbols will continually flash...

Gear selector failure - Range Rover and Discovery 4

This gear selection dial will often cause the vehicle to become stuck in one drive mode. Failure of the dial to rise and fall is often accompanied with the fault code P176C -11...

VW & Audi DSG Gearbox ECU

Very common problem that causes the gearbox to go into limp mode and the PRNDS light on...

CVT gearbox ECU for Mercedes A-Class

Common failing transmission ECU for the 722.8 gearbox causing problems such as:

Loss of power, Sticking in gear, Limp home mode and more...

Mercedes 7G-Tronic TCM (Transmission Control Module) - common fault

This TCM is a very common failure for Mercedes Benz's seven-speed transmission system (7G-Tronic), the common fault starts as juddering when changing gear or holding on to one gear before aggressively forcing the next gear into place. When the control module fails, you will notice stored fault codes for the turbine speed sensor when diagnosing the fault.

Toyota MMT (Multimode Transmission) gearbox actuator faults

These Clutch and Gearbox Actuators are a very common fault for the Toyota Yaris, Aygo, Corolla and Auris built between 2004 and 2013 and fitted with the Multimode transmission system...

Audi S-Tronic mechatronic malfunction

This Audi seven speed DSG (DL501) mechatronic is very problematic. Affecting high performance Audi vehicles it will cause issues with gears sticking or not selecting at all...

Vauxhall Easytronic/Tiptronic auto transmission / gearbox clutch actuator

Causes “F” light to appear on the dash and engine fails to start. Very common issue for the following vehicles:

Vauxhall Corsa 1.0-1.3L
Vauxhall Meriva 1.6-1.8L
Vauxhall Tigra 1.4L
Vauxhall Vectra 1.8L
Vauxhall Signum 1.8L
Vauxhall Zafira 1.8L

Honda Civic clutch actuator transmission faults

Common failure of the clutch actuator fitted to Honda Civic semi automatics will cause the vehicle to lose drive in both directions and may even prevent the vehicle from starting.

Jaguar XF gear selector dial failure

Common malfunction of the Jaguar XF gear selector dial/module will cause the vehicle to remain stuck in park due to the dial failing to rise to allow gear selection...

Audi A4 A6 Multitronic transmission gearbox ECU

Very common failure, causes the "PRNDS" light flashing problem and fail-safe mode activation. Also can cause complete forward drive failure...

Flashing PRNDS Problem

Are you experiencing loss of all gears and a flashing PRNDS warning on the dashboard? Click here to learn more about this problem and how to fix...

Ford Fiesta (Mk6) clutch actuator fault

Common failure of the Durashift clutch actuator fitted to Mk VI Ford Fiesta will prevent gear selection and even engine start...

Toyota Rav 4 Engine/Gearbox ECU

Very common problem for the Rav 4 built after 2000, the common symptoms are described as feeling as though the gears are slipping and then banging into place.

Citroen C2 & C3 transmission ECU

This commonly failing transmission ECU for the Citroen C2 and C3 SensoDrive gearbox will cause problems with gear selection and even prevent the vehicle from starting...

Mercedes A-Class Automatic gearbox ECU

this is a common problem causing the “F” light to appear on the dash and the gears feel as though they are banging in to place...

Mercedes A-Class GRM (Gear Recognition Module) Gear Lever

This is a common problem causing jerky gear change and the “F” light on the dash ....

DSG Mechatronic Repairs

A common issue with many popular DSGs fitted to VAG vehicles, is a defective mechatronic unit. Understand how and why these crucial control units malfunction...