BMW M3 Power Steering Reservoirs Parts

42mm ID with a 2mm cross section

Applies to the reservoir cap to indicate if the vehicle uses CHF11S as power steering fluid, the current version of the cap/reservoir only references CHF11S fills however some caps depending on the manufacturer may not state anything at all

Applies to the reservoir cap to indicate if the vehicle uses ATF as power steering fluid, current version of the cap/reservoir only references CHF11S fills