MMR Performance Billet Oil Filler Cap for BMW S58, B48E

£98.27 Inc Vat

SKU: MMR03-1601 Categories: , , ,


The MMR Performance billet oil filler cap for BMW S58 and B48E engines has been designed from the ground up in the UK, from a solid piece of billet aluminium.
Each cap is designed to directly replace the OE cap, not merely stuck in place.
Each MMR cap starts life as a solid billet of 6061 aerospace-grade aluminium. It’s meticulously machined from this billet with the latest CNC 5-axis technology, before being polished, then gloss-anodised to stay beautiful year after year.

All MMR oil caps arrive pre-sealed and pre-installed with an OE spec valve and internal spring. No need to remove the assembly from your OE cap. A true plug and play solution.

It has been designed to instantly give your BMW an under-bonnet boost in the aesthetic department, finished in a deep gloss black anodised finish.

Never again will you worry whether you tightened your oil cap fully, as the internally sprung cap clicks hard and locks into place. This cap will ensure that you’ll never again have the problem of ‘weeping’ oil leaks from the standard cap – a known issue with many of these engines as age and mileage causes them to deteriorate.

It joins an existing range of engine dress-up products for a complete under-bonnet transformation to your engine bay.

The carefully considered design gives ample surface grip area for your fingers, making installation and filling your engine oil that little bit easier.

Feature heavy:

  • Designed in the UK
  • Crafted from 6061 aerospace-grade aluminium
  • Full OE cap replacement
  • Internally sprung clip for secure and precise fit
  • Anodised in MMR signature gloss black
  • Joins existing range of MMR billet caps
  • Pre-installed factory spec Viton O-Ring

Please check the underside of your factory oil cap for the OE part number. The MMR billet oil cap for the S58 and B48E fits OE part number 11 12 8 654 637

Most popular petrol models include:

Series Model Code Year Variant Engine Code
1 Series F40 2019+ M135i B48E
2 Series F44 2019+ M235i B48E
M2 G87 2023+ All S58
M3 G80/G81 2020+ All S58
M4 G82/G83 2020+ All S58
X3M F97 2019+ All S58
X4M F98 2019+ All S58

Please note if the part is under excessive heat for prolonged periods of time, it can affect the overall finish, which is unavoidable with anodised aluminium products.