Gear-changing problems, emergency driving mode or the car won’t change gear at all? In many cases, the fault lies with the gearbox control unit – not the gearbox itself. Revonik will repair your Transmission control unit TCU DCT250 DC4 Professional service, delivered in 2–4 working days, and up to 70% cheaper than buying new.
Common fault patterns
- The gearbox won’t change gear or gets stuck in one gear
- Emergency mode active – only one gear available
- Unable to communicate with the diagnostic tester
- Jerking or jolting when changing gear
- Transmission oil warning light or transmission fault message on the display
Why Revonik?
Our technicians have been repairing control units for over 12 years – at circuit board level, not simply by replacing them. Your original unit is retained, the vehicle-specific coding is saved, and there is no need to have it reprogrammed at the dealership.
- Up to 70 % cheaper than buying new from the manufacturer
- Plug & Play – fit it straight away, drive straight away
- Repair within 2–4 working days of receipt of the device
- 24-month warranty on the repair work
Frequently Asked Questions
Does the device need to be reprogrammed after repair?
In most cases, no. The vehicle-specific coding remains fully intact following our repair. Should recoding be necessary in any individual case, we will inform you in advance.
What happens if the device cannot be repaired?
We will inform you of the diagnosis and, in this case, will only charge the standard diagnostic fee of €69.00 (including VAT). The device will be returned to you on request.
How long will the repair take?
Standard repairs take 2–4 working days from receipt of the device. An express service is available on request.
