Rear electronic patking brake/ caliper looks SCARY.

Remove the caliper mounting bolts and remove the caliper. Replace brake pads as necessary. Special tool is required to retract caliper piston to fit over new pads. (see picture below)
Retract piston in caliper using special tool to rotate clockwise and make sure the notch in the piston is aligned properly so the tab on the inner pad will fit in properly.
Reinstall caliper assembly and caliper mounting bolts.

Hi, if this is a front caliper that is still on the rotor, I pry between the rotor and rear brake pad to push the piston in. I usually have to pull on the caliper a bit to get it retracted enough to get a screwdriver in between. If the caliper is already off the rotor, I leave the old inside pad on the piston and put a large c-clamp over the caliper to push on the pad and retract the piston. If this is a rear disk caliper or if you have any questions, please reply.

If it's like the 2003 The left-hand brake caliper piston retracts counter clockwise and the right-hand retracts clockwise.

One side,turns right,and push in slightly,and the other side turns left,to retract.

As your car has a handbrake fitted to the rear calipers,you will need a piston wind in tool to retract the piston fully back into the caliper as when you adjust your handbrake the piston automatically winds itself to the required position for usage without this tool you are getting nowhere,so get hold of a tool to do the job and you should not have problem unless the piston has totally siezed on the screw then you will have a problem being the only way to repair would to be a new or refurbished caliper.

yes, you need a piston retract tool for the rear cylinders. rear piston must turn clockwise as it is being retracting.

a special scanner called a v.a.g. has to be used to retract the electronic e brake system, and will also retract caliper piston..DO NOT TRY WITH OUT TOOL !!!!!

With rear brakes the caliper piston must screwed in. It usually has a parking brake mechanism that has to screw out as the pad wears down. When you install a new fat pad, the piston won't retract with normal pressure of a clamp but must be screwed back in on the parking brake screw. This can be done with a long nose pliers but tools are made just for the purpose. I hope this helps.

Hi Jasa

Unless you are mechanically competent, I would not advise you carry out this procedure yourself, but leave it to the professionals.

If you are mechanically minded, and competent, the pads are relatively easy to replace, as follows.

Jack up the vehicle and put on stands, if you don´t have access to a hoist?

Remove wheels, and open the hood, put some kitchen roll around the brake fluid reservoir, to catch any excess brake fluid, when you push back the brake caliper pistons, if it´s been overfilled.
On the front brake caliper's, you are best to put in a little lever between pads and disc, and ease back the piston to fully retracted, unless you have a small G clamp which will do the same job when caliper is adrift.

Remove the 2 x 13mm caliper securing bolts and swing off the caliper, and support with a piece of wire, don´t just let it dangle on the brake hose.
Remove the brake pads, and sensor wire, check the caliper piston dust cover for splits, and clean caliper, housing, etc, and disc, with brake cleaner.

Fit the new brake pads to the caliper, and refit with 2 new securing bolts with blue lock tite, (normally supplied with the B/Pads.)

The rear caliper´s are pretty much the same as the front, although you can just undo the top bolt and swing the caliper back, but I usually remove both, for ease of cleaning, and inspection.

After rear caliper´s and pads and sensor wire, and new bolts are fitted, pump the brake pedal with the ignition on, and just run around, and check there are no leaks from the caliper pistons.
Check the fluid level, and lower with suction syringe if necessary.

By the way, 1. When did you last change your brake fluid ?
2. Adjust your front wheel bearings end float ?

You could do this now before you fit the wheels.?

Let me know if you wish the details for that too ?

Good luck !

Don´t forget to give me a FixYa rating please !

John.





Then refit wheels, drop down the car,

If you can't see diagrams(sometimes happens) let me know and I will get them to you

1. Raise and support the vehicle. Remove the rear wheels.
2. If equipped, disconnect the brake pad wear sensor from the harness.
3. Counterhold the lower sliding pin using a thin open-end wrench and remove the caliper-to-sliding pin hex bolt.
4. Pivot the caliper upward or if necessary remove the upper caliper-to-sliding pin hex bolt.
5. Using a brake caliper retraction tool, select the appropriate sized piston press arbor and install the tool onto the brake caliper. Following the tool manufacturer's recommendations, use the tool to rotate the caliper piston clockwise as it is pressed into the brake caliper housing, until it is fully retracted.

Use a thin open-end wrench to . . . . . . support the caliper sliding pin when removing the caliper mounting bolt Use a disc brake caliper piston retracting tool that will rotate the caliper piston as it is pressed into the caliper The rear caliper piston is slotted to allow a retracting tool to rotate the piston when replacing the brake padsTo install:

1. Clean the brake caliper and all sliding surfaces. With the caliper piston pressed fully back into the caliper housing, check for leaking fluid and damaged dust boots.
2. If equipped, install a new brake pad wear sensor in the pad if the plastic part has been worn through on the old sensor. New sensors are not required unless the wire inside the plastic part has been exposed.
3. Lubricate the slider bolts with approved brake grease.
4. Install the brake pads onto the bracket assembly, and then carefully lower the caliper over the caliper mount. Check and make sure that the pad springs are correctly seated.
5. Replace all removed caliper-to-sliding pin bolts and torque to:
6. 1990-97 Passat models: 25 ft. lbs. (35 Nm)
7. 1998-00 Passat models: 22 ft. lbs. (30 Nm)
8. If equipped, connect the brake wear sensor wire to the harness. Check for a good connection as most problems with the sensor circuit are caused by faulty connections. Check that the wire is held by the loop in the dust cover and the connector is held at the clips.
9. Install the wheels and hand tighten the lug bolts. Lower the vehicle carefully until the tires begin to contact the surface and torque the lug bolts to specification in a crisscross pattern to:
10. M12 x 1.5 lug bolts: 81 ft. lbs. (110 Nm)
11. M14 x 1.5 lug bolts: 89 ft. lbs. (120 Nm)

Feel free to contact if you have any questions