We do not have a full sheet for this code yet, with its causes and checks. What you see here comes from the OBD2 code standard.
System
Engine and transmission (P)
Code type
Manufacturer-specific code: its exact meaning depends on the make.
What do I do now?
If the engine light flashes, the car loses a lot of power, overheats or the brakes fail, stop somewhere safe and call for assistance.
If the car drives normally, book a garage and show them this code: its exact meaning and the cause depend on each model.
Tell us what you notice: the diagnosis takes the code, your car and the symptoms into account.
Where is it on the car?
This code does not point to the engine, the brakes or the transmission: you will see the X-ray car with no area marked.
Related faults in the database
DSG7 gearbox mechatronic unit (DQ200)Gearbox
Engine / equipment
7-speed DQ200 DSG gearbox (dry clutch, 0AM mechatronics), paired with 1.0/1.2/1.4 TSI and 1.6 TDI engines
Period mentioned
2008 onwards
Symptoms
Judder or shudder pulling away in 1st/2nd, reverse won't engage, PRNDS letters flashing or a spanner warning, gearbox stuck in one gear (limp mode).
Possible cause described
Mechatronic unit failure: the pressure accumulator develops fatigue cracks, the electric pump runs constantly and the gearbox loses pressure. The mechatronic's 30 A fuse sometimes blows. Wear of the dry dual clutch is also common.
Check for the garage
Read the gearbox module faults with VCDS, OBDeleven or similar and check the mechatronic fuse.
Cost cited in the source
€350–550 to repair the mechatronic unit alone; €1,000–1,200 including removal and refittingA rough figure from the original database, not an up-to-date quote.
DQ250 6-speed wet-clutch DSG (2.0 TDI, 2.0 TSI and other powerful engines in the Golf, Passat, Tiguan, A3, TT, Octavia, Superb, Leon…)
Period mentioned
2003–2020
Symptoms
Jerking or shudder when pulling away and at low speed, harsh shifts, gearbox warning or limp mode; codes P17BF, P189C, P0841, P0871 or P0717.
Possible cause described
In most cases the cause is the mechatronic unit (the electro-hydraulic control unit), not the clutches. The oil shares a circuit with the clutches and degrades, carrying debris that damages the valves; the pan can also rust and leak. Volkswagen specifies an oil and filter change every 60,000 km.
Check for the garage
Read codes with ODIS or VCDS, check the oil change history, inspect the pan for rust or leaks and the clutch adaptation values. Replacing the mechatronic control board is often enough.
Cost cited in the source
Oil and filter change: maintenance every 60,000 km; control board or mechatronic: expensive repairA rough figure from the original database, not an up-to-date quote.
Mileage cited in the database: from 60,000 km. This is not a maintenance interval and does not predict a failure.