2012-2015 BMW 6 Series Fuel Cap
Specifications
Donor year
2015
Fuel
Gas
Engine size
4.4 L
Engine code
N63TU
Engine type
4.4L V8 Twin-Turbo
Transmission
Automatic
Drivetrain
AWD
About this part
Also known as
Gas Cap
Fuel Tank Cap
Filler Cap
Fuel Filler Cap
EVAP Cap
What this part does
The Fuel Cap seals the vehicle's fuel filler neck to prevent fuel from evaporating and keeps dirt or moisture out of the gas tank. It also plays a critical role in maintaining the correct pressure within the evaporative emissions (EVAP) system. If the internal ratcheting mechanism breaks or the rubber seal degrades, the system will detect a vacuum leak and trigger a check engine light with EVAP-related diagnostic codes.
Fits these vehicles
| Make | Model | Years | Engine |
|---|---|---|---|
| BMW | 650i xDrive | 2012-2015 | 4.4L V8 |
| BMW | 650i | 2012-2015 | 4.4L V8 |
| BMW | 640i | 2012-2015 | 3.0L I6 |
| BMW | 640i xDrive | 2014-2015 | 3.0L I6 |
| BMW | M6 | 2012-2015 | 4.4L V8 |
Before you order
A loose or degraded seal on your old cap is the most common cause for an EVAP system leak code (such as P0442 or P0456). When installing this replacement, ensure the rubber O-ring is free of debris and twist the cap until it firmly clicks to verify a proper seal. If the tether is included, check that the attachment point on your vehicle's fuel door hinge is intact so it can be secured properly.
