BMW 5251 Service Manual page 775

4
Remove plastic caps from caliper mounting bolts (arrows).
Use BMW special tool 34 1
080
(7 mm Alien wrench) to re-
move caliper mounting bolts. Remove caliper from pad carri-
e r.
NOTE-
I f there is a ridge on brake rotor edge, press caliper pistons
back into caliper before removing caliper.
-
Check brake rotor thickness. Inspect for rust or damage. if
necessary replace or machine brake rotors as described lat-
er. Bralte rotor specifications are given in table below.
Spread bralte pads using BMW special tool 34 1 050 or
equivalent. Remove brake pads.
CA U T I O G
Pressing caliperpistons in may cause brake fluid reservoir to
overflow. T o prevent this, use a clean syringe to first remove
some fluid from reservoir.
NOTE-
Inner brake pad lias a spring to locate it in the caliper piston.
4
Carefully pry pad wear sensor from brake pad
-
Check caliper dust boots for damage and replace if neces-
sary.
-
Clean contact surfaces between caliper and caliper carrier.
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