Fault finding before parts fitting
A warning light is only the starting point. PMW Automotive investigates the system behind the fault using diagnostic data, targeted tests and practical workshop experience with German vehicles.
Investigation for engine management lights, rough running, poor starting, AdBlue faults, DPF issues and emissions warnings.
Checks for battery drain, charging faults, module communication problems, lighting issues and intermittent electrical behaviour.
Diagnosis for gearbox hesitation, clutch concerns, drivetrain vibrations, 4MATIC, quattro, xDrive and VAG 4Motion issues.
Fault finding for ABS, ESP, airbag, steering, suspension and driver assistance warnings that affect safety and roadworthiness.
Diagnostics are useful when the car is giving you a symptom, not just when a warning light is on. The earlier a fault is investigated, the better the chance of avoiding secondary damage.
We read codes as clues, then test the system behind them before recommending repairs.
Sensor values, temperatures, voltages and adaptations are checked while the fault is present where possible.
Some faults only appear under load, speed or temperature, so we verify symptoms beyond the workshop bay.
You get a clear view of what is urgent, what can be monitored and what may need further investigation.
We start with what you have noticed, when it happens, and any recent work or warning messages.
Fault codes, live data and system tests are used to choose the right physical checks.
We test the likely failure points before recommending replacement parts or larger repairs.
You receive clear findings, repair options and the next step before any extra work proceeds.
STAR-aware checks, ASSYST messages, 4MATIC, SRS and emissions systems
CBS service data, xDrive, iDrive, drivetrain and engine control systems
quattro, S tronic, MMI, TFSI/TDI and emissions control systems
VAG platforms, DSG, TSI/TDI, 4Motion and infotainment faults
compact drivetrain, Twinamic, EQ and city-car electrical systems
Tell us the warning light, symptom, make, model and when the issue happens. We will help plan the right diagnostic appointment.