Valve Cover Diaphragm – Mercedes OM651 2.2 CDI | OEM A6510109118 A6510100630

A failed valve cover diaphragm on the Mercedes OM651 2.2 CDI causes oil leaks and crankcase fault codes. Direct replacement for valve covers using OEM A6510109118, A6510100630, and a wide range of equivalent numbers across all OM651 applications. Mercedes-Benz ML/GLE W166, C-Class W204/W205, E-Class W212/W213, S-Class W222, GLC X253, GLK X204, Vito W639/W447, Sprinter W906 — all with OM651 2.2L CDI diesel

Fits OEM #6510100630.

When to Inspect This Part

• mixture faults or an intake air leak
• rough or unstable idle
• increased oil consumption
• whistling or excessive crankcase vacuum

What's Included

• 1 × Valve Cover Diaphragm

OEM Part Numbers and Vehicle Fitment

Additional confirmed fitment

• Mercedes-Benz Mercedes Benz ML-class / GLE (w166)
• Mercedes-Benz Mercedes Benz SLK/SLC (r172)
• Mercedes-Benz Mercedes Benz C-class (w204, s204, c204)
• Mercedes-Benz Mercedes Benz GLK-class (x204)
• Mercedes-Benz Mercedes Benz E-class (c207, a207)
• Mercedes-Benz Mercedes Benz E-class (w212, v212)
• Mercedes-Benz Mercedes Benz E-class (s212)
• Mercedes-Benz Mercedes Benz S-class (w221, v221)
• Mercedes-Benz Mercedes Benz C-class (w205, v205, s205, c205)
• Mercedes-Benz Mercedes Benz CLS-class (c218, x218)
• Mercedes-Benz Mercedes Benz S-class (w222, v222, x222)
• Mercedes-Benz Mercedes Benz Vito (w447)
• Mercedes-Benz Mercedes Benz V-class (w447)
• Mercedes-Benz Mercedes Benz Vito (w639)
• Mercedes-Benz Mercedes Benz Viano (w639)
• Mercedes-Benz Mercedes Benz Sprinter (w906)
• Mercedes-Benz Mercedes Benz GLC Coupe (c253)
• Mercedes-Benz Mercedes Benz GLC-class (x253)

Part Number / PN

6510100630, 6510109118, A6510100630, A6510100230, A6510100830, A6510101230, A6510108918, A6510109203, A6510109118, A6510109714, 6510100230, 6510100830, 6510101230, 6510109203

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 6510100630 is the primary fitment check.

FAQ

How do I confirm fitment for this Valve Cover Diaphragm?

Compare the exact OEM/P/N and physical design with the installed part. The primary reference is 6510100630. Do not select the part by vehicle model alone.

What symptoms may indicate a problem with this Valve Cover Diaphragm?

Confirmed symptoms include mixture faults or an intake air leak, rough or unstable idle, increased oil consumption, whistling or excessive crankcase vacuum. Diagnose the original assembly before ordering so another fault is not mistaken for this part.

What is included with this Valve Cover Diaphragm?

The confirmed kit contents are: 1 × Valve Cover Diaphragm.

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.

• Mercedes

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