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P189C fault code: what it means

P189C: DSG7 (DQ200) restricted because hydraulic pressure builds too slowly. Often the early sign before P17BF; limp mode or no drive.

Engine and gearbox (powertrain) · Costly if missed

Usual causes, most likely first

  1. cracked accumulator housing (accumulator repair kit)
  2. mechatronic hydraulic pump motor (V401)
  3. pump fuse, wiring or connector
  4. mechatronic unit failure

P189C by make

Audi

DSG7 (DQ200) restricted because hydraulic pressure builds too slowly. Often the early sign before P17BF; limp mode or no drive.

Usual causes: cracked accumulator housing (accumulator repair kit); mechatronic hydraulic pump motor (V401); pump fuse, wiring or connector; mechatronic unit failure

Skoda

DSG7 (DQ200) restricted because hydraulic pressure builds too slowly. Often the early sign before P17BF; limp mode or no drive.

Usual causes: cracked accumulator housing (accumulator repair kit); mechatronic hydraulic pump motor (V401); pump fuse, wiring or connector; mechatronic unit failure

Volkswagen

DSG7 (DQ200) restricted because hydraulic pressure builds too slowly. Often the early sign before P17BF; limp mode or no drive.

Usual causes: cracked accumulator housing (accumulator repair kit); mechatronic hydraulic pump motor (V401); pump fuse, wiring or connector; mechatronic unit failure

What the repair usually costs

Not sure what P189C means on your car? Ask Credov.

Before you clear it

Write the code down or photograph the scanner first. A code that comes straight back after clearing points to a fault that is still there. A car whose codes were cleared just before you arrived may be hiding one: the scanner's readiness monitors show "not ready" for a while after codes are cleared.

Researched by Credov from manufacturer and workshop sources. A fault code points to where a fault may be; a workshop confirms it with a diagnosis. Browse all fault codes.