Oil Filter Housing Check Valve — BMW M47 Diesel | E39 / E46 | OEM 11422246992 | Reinforced Upgrade
Fix Cold Start Oil Starvation on Your BMW M47 Diesel — Reinforced Check Valve Upgrade.
The original plastic check valve in the BMW M47 diesel engine oil filter housing fails to hold oil in the circuit after shutdown — allowing oil to drain back to the sump. On cold starts, this causes momentary oil starvation, lifter rattle, and accelerated engine wear. This reinforced replacement valve maintains oil charge in the circuit and eliminates dry starts.
Why Upgrade
- Eliminates Dry Start Rattle: Oil remains in the circuit — instant lubrication on startup.
- Reinforced Construction: Upgraded material vs. the original plastic valve.
- Protects Engine: Prevents metal-on-metal contact during the first seconds of cold starts.
Compatible Oil Cups
11422246992, 11427786867
Vehicle Compatibility
BMW 5 Series E39 (520d, 525d), BMW 3 Series E46 (318d, 320d, 330d) — with M47 diesel engine
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Standard delivery:
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- 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