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P2006 fault code: what it means

P2006: Intake runner/swirl flap stuck closed, bank 1. On OM642 usually the swirl flap motor; on M272/M273 the manifold flaps jam with PCV deposits.

Engine and gearbox (powertrain) · Costly if missed

Usual causes, most likely first

  1. failed swirl flap motor (OM642)
  2. flaps jammed by oil/carbon deposits
  3. broken plastic flap linkage (M272/M273)

P2006 by make

Mercedes-Benz

Intake runner/swirl flap stuck closed, bank 1. On OM642 usually the swirl flap motor; on M272/M273 the manifold flaps jam with PCV deposits.

Usual causes: failed swirl flap motor (OM642); flaps jammed by oil/carbon deposits; broken plastic flap linkage (M272/M273)

Not sure what P2006 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.