P189CDSG function restricted: hydraulic pressure builds up too slowly
- Volkswagen group code · Transmission
- Can trigger limp mode
- How the car detects it
- On the 7-speed dry-clutch DSG (DQ200/0AM) the mechatronic unit has its own electric pump that keeps hydraulic pressure up. This code says the pressure doesn't build up as it should, so the gearbox limits its operation. The gearbox may switch to an emergency mode with only some gears (for example only odd or only even gears) and show a warning. Check for software updates and bulletins before replacing the mechatronic unit or the clutch.
- What you may notice
- Gearbox warning
- Jerks, shudder or missing gears
- Basic settings cannot be completed
- Likely causes
- PossibleMechatronic unit (pump motor, accumulator, internal leak)
- RareFuse or power supply to the mechatronic unit
- RareWiring
- Sources
Backed by at least two independent sources.
From Obdaryn's Volkswagen group pack, exactly as the app shows it, with the public sources above. Guidance only; confirm with a workshop.