Describe the symptom precisely
When does the fault occur, when did it start and what changed recently? Vehicle details, warning messages and conditions such as temperature, load or moisture help reproduce the issue.
SD DOC Dülmen · Dülmen branch · 50 km area
Vehicle diagnostics and fault finding
Investigate warning lights, loss of power and recurring faults. SD DOC Dülmen combines fault data with checks on the actual vehicle.
Engine software · Maps · RecoveryDiagnosticsTransmission logic · Torque modelAVM
Combine fault memory and live data
Fault codes, freeze-frames and target/actual values are considered together. A component named in a code is a diagnostic clue, not an automatic instruction to replace it.
Distinguish electrical and mechanical causes
Depending on the findings, checks may concern power supply, wiring, signals, pressure, temperature or actuators. The diagnostic path follows the actual vehicle and symptoms.
Agree repair work after the findings
You receive an explanation of the deviation found and the appropriate next step. Further diagnosis, replacement parts or software work are agreed with scope and location beforehand.
Verify under suitable conditions
Relevant functions and fault memory are checked after the agreed work. Intermittent faults may require further observation or testing; clearing a warning does not repair its cause.
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