The MMX Billet Washer Fluid Filler Cap is a direct replacement for the factory plastic cap on G Series BMWs. CNC-machined from solid aluminium and finished in anodised gloss black, it's built to outlast the factory part while giving the engine bay a noticeably more finished look.
It's designed as part of MMX's wider under-bonnet dress-up range, so it pairs naturally with their other billet engine bay components and carries the MMX logo.
CNC-machined from solid aluminium
Anodised gloss black finish
Direct replacement for the factory plastic filler cap
