P2007 on Mercedes-Benz: How to Diagnose & Fix
Intake Manifold Runner Control Stuck Closed (Bank 2)
2 Mercedes-Benz models · 2 documented issues · 1 critical · $50-$2,500 repair
P2007 on Mercedes-Benz by model: symptoms, diagnosis and fix
On the OM642 V6 diesel used in the E320 CDI/BlueTEC and E350 BlueTEC, the swirl-flap actuator motor sits low on the intake and is directly under the turbo intake seal, which is itself a known oil-leak point. Oil drips onto the motor and kills it, and the plastic linkage arm between the motor and the flap shaft snaps. At the same time EGR soot builds up in the intake runners until the flaps physically seize. The result is P2004-P2007 / P2015-type intake runner faults, limp mode capping the engine around 3000 rpm, rough idle and poor throttle response. Owners on BenzWorld and MBClub consistently report that replacing the actuator motor alone without cleaning the intake results in a repeat failure within 20,000-40,000 miles.
Common Symptoms
- Limp mode / power cut around 3000 rpm
- Check engine light with intake runner control codes
- Rough idle and poor throttle response
- Black smoke under acceleration
- Oil residue around the intake actuator motor
How to Fix
Remove the intake manifolds and physically clean the soot from the runners and flaps, replace the swirl flap actuator motor and the linkage rod (aftermarket metal rod kits are common and hold up better than the plastic original), and critically, fix the turbo intake seal / oil leak above it or the new motor will be soaked again. Some owners in high-mileage cars go to a swirl-flap delete, but that is not emissions-legal in the US. Address the EGR cooler and intake condition at the same time since the manifolds are already off.
Sources for this issue (3)
The OM642 V6 intake manifolds use plastic swirl/runner flaps driven by a small actuator through a plastic connecting linkage. Oil mist and heat make the plastic linkage and pivots brittle; they crack and break, leaving the flaps stuck and triggering P2015 (and runner-control codes). A failed swirl-flap motor (often from an oil leak into the actuator) produces the same fault. The result is rough idle, power loss, a lit engine light and limp mode.
Common Symptoms
- Check engine light
- Rough idle
- Power loss / limp mode
- Delayed acceleration
- Failed emissions test
How to Fix
Repair with an aftermarket metal swirl-flap/runner linkage kit (a permanent fix versus the original plastic parts), or replace the intake manifold(s). A failed actuator motor is sometimes worked around with a resistor bypass. Clear codes after repair.
Sources for this issue (2)
P2007 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P2007 mean on a Mercedes-Benz?
P2007 stands for "Intake Manifold Runner Control Stuck Closed (Bank 2)." This generic powertrain code sets when the PCM detects that the intake manifold runner control (IMRC) for engine bank 2 is stuck in the closed position. The IMRC uses movable flaps/runners to vary intake air velocity for optimal performance and efficiency across the RPM range, so a stuck-closed runner means the system cannot open the flaps as commanded. Bank 2 is the cylinder bank that does not contain cylinder #1. On Mercedes-Benz it is documented across 2 models: E-Class, Sprinter.
What are the most common causes of P2007?
The most common causes of P2007 are: Failed or seized intake manifold runner control actuator/solenoid, Carbon buildup or sticking/binding intake runner flaps or linkage, Broken, disconnected, or stuck IMRC vacuum/mechanical linkage, Wiring or connector faults (open, short, corrosion) in the IMRC circuit, Faulty intake manifold runner position sensor, Defective intake manifold (warped/broken runners) or, rarely, a faulty PCM. The specific cause varies by vehicle.
How much does it cost to fix P2007 on a Mercedes-Benz?
Published repair estimates on Mercedes-Benz range from $50 to $2,500 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
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Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.