Vacuum Pump Check Valve — BMW N46 / N46N / N42 | OEM 11667542498
Restore Brake Assist Vacuum Retention on Your BMW N46 or N42 — Direct Replacement Check Valve.
The vacuum pump check valve on BMW N46, N46N, and N42 engines maintains vacuum in the brake servo circuit after the engine stops. When it fails, vacuum bleeds back — causing a soft brake pedal. This direct replacement valve restores correct vacuum retention.
OEM Reference
- 11667542498
Vehicle Compatibility
BMW models with N46, N46N, or N42 engine — 1 Series E87, 3 Series E46/E90
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