Credov

P0749 fault code: what it means

P0749: Pressure control solenoid A intermittent. Erratic shifts.

Engine and gearbox (powertrain) · Costly if missed

Usual causes, most likely first

  1. loose or oily 13-pin connector
  2. solenoid fault

P0749 by make

Mercedes-Benz

Pressure control solenoid A intermittent. Erratic shifts.

Usual causes: loose or oily 13-pin connector; solenoid fault

Not sure what P0749 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.