reset AUDI A4 2000 B5 / 1.G Double Piston Front Caliper Workshop Manual

47-10

Double piston brake caliper pistons,
removing and installing


Special tools and equipment

3409 wedge
Piston resetting tool

WARNING!
Note: Fig. 1 Pressing pistons individually out of brake caliper housing
using compressed air
Risk of accident! Apply pressure gradually. Guard against the
sudden release of the piston. Always wear safety glasses when carrying out this step.Insert brake pad -b- into piston. Place wooden block -a- into the space
so the pistons are not damaged. Only one piston can be pressed out at a time: hold the other piston
tight using the piston resetting tool in the brake caliper housing during
this step.
Pa
ge 3 of 5 Double
piston front brake cali
pers, servicin
g
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU03.47.3

47-12


Note:
Hold the piston in front of the caliper housing for this procedure. Fig. 4 Installing inner sealing lip of protective seal using 3409
wedge

Note: Fig. 5 Pressing piston into brake caliper housing using piston
resetting tool
Install piston into the bore by hand and then install the brake pad -a-
on the piston before pressing piston into the brake caliper housing. The outer sealing lip of the protective seal will then locate in the piston
groove during this step.
Pa
ge 5 of 5 Double
piston front brake cali
pers, servicin
g
11/20/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.SU03.47.3