FAULT CODE READING
OBD2 codes.
A code identifies a signal or system that needs to be checked, not a part you should replace.
Got an OBD2 Bluetooth adapter? Read the codes straight from your car.0 code entries · 2 related faults
P189C
- System
- Engine and transmission (P)
- Code type
- Manufacturer-specific code: its exact meaning depends on the make.
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.
Sources from the original database
ABS Stuurapparaten: common DSG problemsABS Stuurapparaten: DQ200 mechatronics codesMechtronic: DQ200 failure on a VW GolfECU Testing: DSG7 mechatronics
View full entryDQ250 DSG mechatronic and oilDSG gearbox
- Engine / equipment
- 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.
Sources from the original database
Kfz-Meisterbetrieb Dietrich: DQ250 mechatronicsForeign Automotive: VW DSG problemsService4Service: judder on DQ200 and DQ250Transmission Digest: DQ250 maintenance
View full entry