1997-2000 BMW 5 Series Fuel Cap
Specifications
Donor year
1998
Body style
Sedan
Fuel
Gas
Engine size
2.8 L
Engine code
M52
Engine type
2.8L I6
Drivetrain
RWD
About this part
Also known as
Gas Cap
Fuel Filler Cap
Petrol Cap
Fuel Tank Cap
EVAP Cap
What this part does
The Fuel Cap securely seals the filler neck of the fuel tank, keeping dirt and moisture out while maintaining proper tank pressure. It contains a specialized pressure relief valve that works directly with the vehicle's evaporative emissions (EVAP) system to route fuel vapors back into the engine rather than the atmosphere. When the internal seal cracks, flattens, or fails to lock securely, it will depressurize the fuel system and trigger a Check Engine Light, most commonly logging an EVAP system leak code.
Fits these vehicles
| Make | Model | Years | Engine |
|---|---|---|---|
| BMW | 528i | 1997-2000 | 2.8L I6 |
| BMW | 540i | 1997-2000 | 4.4L V8 |
| BMW | M5 | 1999-2003 | 5.0L V8 |
Before you order
Inspect the threaded neck of your vehicle to ensure there is no physical damage or debris that would prevent a new cap from seating correctly. If your vehicle is currently showing a Check Engine Light for a small EVAP leak, replacing this cap will often resolve the issue, provided the vehicle's filler neck and charcoal canister lines are intact. Be aware that the plastic tether connecting the cap to the fuel door hinge may need to be secured using your original retaining pin.
