Microfilter is one part, or area of BMW's Conditioned Based Servicing or CBS.

BMW/Mini currently use this system to determine whether your vehicle is due for a service. CBS is a service schedule first introduced with the BMW 7 series (E65).

CBS is divided up into specific areas:

  • Oil service
  • Microfilter
  • Spark plugs
  • Diesel Particulate Filter (DPF)
  • MOT
  • Vehicle check
  • Break fluid change
  • Front brakes
  • Rear brakes

An indicator/light will come on your dashboard when any of the above need a service...


This light will turn red on your CBS when your microfilter or pollen filter is due for renewal. On many models it is part of the oil service.

This filter helps trap dust, bacteria and exhaust gasses that penetrate into the interior of the vehicle. The filter also prevents leaves, bugs and other debris entering the vehicle.


We are located in Stockport, just off the main A6, and 2 mins from J1 or J27 of the M60.

Professional and customer focused service from qualified master & senior BMW technicians with over 45 years joint experience.          

We offer our customers a FREE collection and delivery service, from your home or place of work, within a 5 mile radius.