EGR Valve Vacuum Actuator Membrane 45mm – Mercedes OM651 2.2 CDI | OEM 6511400502 6511400302
The vacuum actuator membrane inside the Mercedes OM651 2.2 CDI EGR bypass valve (6511400502) tears with age — causing the EGR bypass to stop operating correctly, EGR fault codes, and incorrect exhaust gas temperatures. This 45mm direct replacement membrane restores correct actuator function.
Fits OEM #6511400502.
When to Inspect This Part
- whistling or excessive crankcase vacuum
- rough or unstable idle
- increased oil consumption
- oil residue in the intake
- smoke after warm-up
- mixture faults or an intake air leak
What's Included
- 1 × EGR Valve Vacuum Actuator Membrane 45mm
OEM Part Numbers and Vehicle Fitment
Additional confirmed fitment
- Mercedes-Benz Mercedes Benz Sprinter (w906)
- Mercedes-Benz Mercedes Benz C-class (w204, s204, c204)
- Mercedes-Benz Mercedes Benz CLS-class (c218, x218)
- Mercedes-Benz Mercedes Benz Viano (w639)
- Mercedes-Benz Mercedes Benz Vito (w639)
- Mercedes-Benz Mercedes Benz S-class (w222, v222, x222)
- Mercedes-Benz Mercedes Benz E-class (s212)
- Mercedes-Benz Mercedes Benz E-class (w212, v212)
- Mercedes-Benz Mercedes Benz E-class (c207, a207)
- Mercedes-Benz Mercedes Benz B-class (w246, w242)
- Mercedes-Benz Mercedes Benz S-class (w221, v221)
- Mercedes-Benz Mercedes Benz ML-class / GLE (w166)
- Mercedes-Benz Mercedes Benz GLK-class (x204)
- Mercedes-Benz Mercedes Benz GLA-class (x156)
- Mercedes-Benz Mercedes Benz A-class (w176)
- Mercedes-Benz Mercedes Benz SLK/SLC (r172)
- Mercedes-Benz Mercedes Benz CLA-class (c117, x117)
- Mercedes-Benz Mercedes Benz C-class (w205, v205, s205, c205)
- Mercedes-Benz Mercedes Benz Vito (w447)
- Mercedes-Benz Mercedes Benz V-class (w447)
Part Number / PN
6511400502, 6511400302, 6511400002, 6510940065, 6511410369, 6511410169, 6511410269, 6511410069, 6511410469, 651141036964, a6511400502, a6511400302, a6511410369, A651141036964
Important Fitment Check
Before ordering, compare the part design, dimensions, connectors, and every available OEM/P/N marking with the part installed on the vehicle. Matching OEM/P/N 6511400502 is the primary fitment check.
FAQ
How do I confirm fitment for this EGR Valve Vacuum Actuator Membrane 45mm?
Compare the exact OEM/P/N and physical design with the installed part. The primary reference is 6511400502. Do not select the part by vehicle model alone.
What symptoms may indicate a problem with this EGR Valve Vacuum Actuator Membrane 45mm?
Confirmed symptoms include whistling or excessive crankcase vacuum, rough or unstable idle, increased oil consumption, oil residue in the intake. Diagnose the original assembly before ordering so another fault is not mistaken for this part.
What is included with this EGR Valve Vacuum Actuator Membrane 45mm?
The confirmed kit contents are: 1 × EGR Valve Vacuum Actuator Membrane 45mm.
Does this listing include the complete surrounding assembly?
No. It includes only the item or repair components identified for this SKU. Inspect related parts separately and replace them only when diagnosis confirms a fault.
What should be checked before installation?
Check the OEM/P/N, dimensions, connectors, orientation, and condition of the mating components. Installation should follow the correct service procedure for the specific vehicle and assembly.
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Orders ship within 1–2 business days.
Standard delivery:
- USA: Some items ship from our US warehouse and arrive within 3 business days.
- USA-EU: 10–21 business days
- Worldwide: 14–30 business days
Shipping cost is shown at checkout.
Can I exchange or return an item?
Yes, you can exchange or return an item within 14 days of purchase. This right is guaranteed to you by the Law on the Protection of Consumer Rights
To use this feature, please make sure that:
- the product was not in use and has no traces of use: scratches, chips, abrasions, etc.
- the goods are fully completed and the integrity of the packaging is not violated
- retained all labels and factory markings