How do I retract the caliper piston?
Note on rear-caliper piston tool:
paying $50 for the VW or similar custom tool, you can use a generic $5
import "cube" tool available at most national-chain part stores.
One side of the cube has 4 prongs. Grind or file off 2 diagonally
opposite aka kitty-corner prongs to allow the cube to fit the vw rear
# Use with a 3/8" ratchet. It can be easier to fasten
the rear caliper back onto the carrier without the rotor in place while
using this tool. That way you get a little extra leverage.
# Use as
follows: engage the two prongs and turn piston 180° clockwise.
Remove the tool. Use a generic caliper tool or a c-clamp and push the
piston in about 2mm. Keep alternating back and forth between the cube
tool and the c-clamp until piston is almost all the way in. If you
are strong enough, you may not even need the c-clamp - just push with
the cube tool as you turn. Instead of the cube, you can even use
needle-nose pliers, but then you definitely need the c-clamp.
with this special tool, the rear brakes can be rather difficult, so
make sure you have plenty of time. I still recommend purchasing or
renting the $50 professional tool cause it is much easier to use.
totally confused by all this, just take your wheels off and
look at the brakes up close. Its simpler than it sounds on paper. And
get the Bentley publishers shop manual for your car. That book pays for
itself after one or two jobs. If your still at lost, Auto Zone has the
loner tool you'll need for $50.00 and you'll get it back after you
return the tool and they can give you the step by step instructions
mentioned above. Good luck.
Nov 01, 2009 |
1999 Volkswagen Passat