Shift fault or calibration request?
Describe when a shift is problematic: cold or warm, when pulling away, under load or on overrun. A comfort request is assessed differently from slip, judder or a stored transmission fault.
SD DOC Dülmen · Dülmen branch · 50 km area
Transmission calibration
Match shift behaviour, torque requests and TCU limits to the vehicle, engine calibration and transmission condition.
Engine software · Maps · RecoveryDiagnosticsTransmission logic · Torque modelAVM
Check transmission condition first
Transmission type, TCU version, maintenance, oil temperature and available adaptation values are reviewed. Raising pressure or torque limits is not presented as a repair for mechanical wear or hydraulic faults.
Match ECU and TCU behaviour
A suitable TCU calibration considers engine torque requests, shift points and vehicle-specific protection functions. Different transmissions do not require identical changes after engine calibration.
Consider use and loading
Driving profile, towing and existing engine software determine the appropriate scope. The aim is consistent torque handover and shift behaviour suited to the vehicle; harsh shifts alone are not evidence of quality.
Agree the scope and verify the result
Access method, work location and scope are agreed beforehand. Fault memory and shift behaviour are checked afterwards; further checks through AVM in Ibbenbüren can be arranged if required.
SD DOC Dülmen × AVM Car Performance
Local contact. Clearly assigned technical work.
Local advice, vehicle assessment, diagnostics and suitable software work. We check the options for your vehicle. Dyno testing, development and extensive workshop work through AVM in Ibbenbüren. We agree on the scope and location before your appointment.
DülmenContact · Diagnostics
IbbenbürenDynamometer · Development · Workshop