Pump Valve Diaphragm Rubber For Mercedes-Benz W211 S211 2.2 CDI
Restore reliable fuel delivery and eliminate pressure fluctuations with this precision-engineered pump valve diaphragm designed specifically for Mercedes‑Benz W211 and S211 chassis models equipped with the 2.2 CDI and 200 CDI powertrains. When the original rubber diaphragm hardens, cracks, or loses elasticity, owners frequently experience rough idle, sluggish acceleration, or fuel system warning lights. This direct‑replacement component seals precisely under operating pressure, preventing air ingress and restoring crisp throttle response without unnecessary component replacements.
Benefits & Maintenance Tips
- Schedule inspection every 60,000 miles or during major fluid services to catch early signs of material fatigue before fuel loss occurs.
- Clean mounting flanges thoroughly and tighten retaining hardware in a cross pattern to maintain a leak‑free seal across temperature cycles.
- Keep replacement diaphragms away from direct sunlight and ozone sources while stored to preserve rubber flexibility until installation.
Product Specifications
- Material: Durable synthetic rubber formulation
- Gasket Diameter: 70 mm
- Compatible Vehicles: Mercedes‑Benz E‑Klasse (W211) 2002–2009, E‑Klasse Kombi (S211) 2003–2009, V‑Class (W638/2), and 2.2 CDI / 200 CDI engines (1999–2003)
- OEM & Reference Numbers: 6460100091, A6460100667, A6460100091, 51018040061, 51018040019, 51018040062
- Condition: Brand new, ready for immediate fitment
Package Includes
- 1 × Pump Valve Diaphragm
Installation Reminder
Always verify the reference numbers against your factory‑fitted unit before purchase. Installing an incorrect specification can disrupt metering calibration and void related components. If you encounter sealing resistance during fitting, double‑check alignment rather than forcing hardware into place.
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