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P2006: Intake Manifold Runner Control Stuck Closed (Bank 1)

Severity: medium

What it means: The engine computer sees that the intake runner or swirl flaps on bank 1 aren't moving as commanded and appear stuck closed.

Safe to drive? Usually drivable gently, but you may have reduced power or limp mode. Get it checked.

Common symptoms

Likely causes, ranked

  1. Stuck or carbon-clogged intake runner/swirl flapsShop
  2. Faulty flap actuator motor or linkageShop
  3. Wiring or position sensor problemDIY
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Vehicle-specific notes

  • 2010–2012 Mercedes-Benz GL350: OM642 BlueTEC: an MBWorld owner had P2006 and P2007 with sudden power loss; the fix is repairing the swirl flap motor, linkage or manifolds. Read the full answer · Source

What it means: The engine computer sees that the intake runner or swirl flaps on bank 1 aren't moving as commanded and appear stuck closed.

Severity: Medium. Safe to drive? Usually drivable gently, but you may have reduced power or limp mode. Get it checked.

DIY or shop?

Wiring checks are DIY. Flap motor, linkage and manifold work is usually a shop job.

Before you replace parts

  1. Read all stored codes and freeze-frame data, not just this one.
  2. Check your VIN for recalls, service bulletins and extended coverage.
  3. Inspect wiring and connectors for the related sensor or part before buying parts.
  4. Clear the code only after a repair, then confirm it stays off.

Safety / mechanic note

Verify with a mechanic. Sudden power loss while towing or merging is dangerous. A code points to a circuit or system, not always a specific part.

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Sources