After about 12k I noticed then brake fluid in front is about half way down bubble. Dealer says its because of pad wear and more fluid being used in the system. Makes sense. However should we still not keep it full - ie no air bubble visible?
Think about this way,
If you were designing a braking system, which is a pretty important system in most vehicles, would you design the resivoir to run out of fluid before the pads ran out of material and the discs were at minimum thickness?
The fluid level is another indicator of pad wear, some systems have a float in the resivoir, this pings a light. What a lot of people do is fill up the resivoir, light goes out. What they should be doing is checking brake pads and system.
I've just had a two yearly brake flush done, I made sure (after some discussion) that they filled the fluid resivoir to max line only after the caliper pistons were pushed back in the caliper. This way when I fit my spare wheel with new discs and pads, I won't have to bleed some fluid out.
A forum community dedicated to BMW Luxury Touring motorcycle owners and enthusiasts. Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, reviews, and more!