Are brake pads / rotors on a distance- or time-based maintenance frequency? Is there a sensor that measures the pad thickness? Or do I just wait until I hear noises?
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2006 BMW 330i
Question: When do brake pads need to be replaced?
Answer #1Brian Glastetter June 20, 2011, 20:59Master
Brake pads wear at vastly varying frequencies mostly due to the type of driving a person may do. To my knowledge, there is no time or distance recommendations. I always suggest to my customers to routinely have the brakes inspected. I recommend a tire rotation and brake inspection every other oil change. This is done so there is no surprises or anticipated failures. My customers are provided with a written recommendation which warns them way ahead of time before maintenance is needed.
Replyoverbys, June 21, 2011, 07:14Master
this BMW uses a system called Condition Based Service (CBS)
and it will create a maintenance list at each service. only shops that have BMW software can access this system, that's why it is extremely important NEVER to have service
done by anyone that does not have this software. it will
calculate pad/rotor wear but you also have pad wear sensors
on the left front and right rear pads that will act as a
failsafe. BMW dealers will always try and sell brake work
when you are down to 20% pad remaining and for that reason
you need a good reputable independant BMW service center.
They will save you 20% or more over the dealer and usually will not try to oversell. unfortunately, this is a very
unfriendly car to do your own maintenance.