Question 1

How to replace the Brake Pad Set on Audi A4?

Accepted Answer

Take the cap off the brake fluid reservoir and drain most of the fluid content, say 2/3, then put the cap back on, and make sure the spilled fluid is washed off as soon as possible by clean cold water to prevent the paint being ruined. Relax the front wheel mounting bolts, lift the front part of the car and pin it down on jackstands and block the wheels at the other end. Take out the wheels and clean the caliper and disc with a thoroughly moistened one with brake system cleaner and leave it to dry making sure to place a drain pan below to collect the cleaner. On model that has FNR-G 60 front brakes, press the piston back into the bore to help remove the caliper, unclip the pad retaining spring, remove the protective end caps to reveal the caliper guide pins, disconnect the brake pad wear indicator electrical connector, unscrew the caliper guide pins, and lift the caliper out of the mounting bracket, with support of the wire. On models that have FN3 front brakes, repeat the steps of unclipsing the pad retaining spring, disconnecting the wear indicator, removing the end caps, unscrewing the guide pins and supporting the caliper. To install models with C54 front brakes, disconnect wear indicator, unscrewing mounting bolts, but not rotating the guide pins, remove caliper and make sure that the heat shield plate is clipped into the piston. Brembo front brakes The procedure to change the pads consists of disconnecting the wear indicator, driving the pins holding the brake pad out of the bore and pushing the pistons back in the bore, one pad at a time. Check the brake disc and make sure the guide pins move smoothly and lubricate them with grease or oil and examine the dust seal and piston to ascertain that they are not damaged or leaking. The caliper piston should be pushed back into the cylinder with a tool or C-clamp, a brake bleeding kit should be attached, and the bleed screw should be opened with the piston being retracted to release excess fluid in order to install new pads. In case of FNR-G 60 models, cut the inner pad and the outer pad to fit inside the piston and inside the housing relief, lubricate the guide pins, fix them and connect the wear indicator. In case of FN3 models, cut the inner pad to the piston, attach the outer pad to the mounting bracket, lubricate the guide pins and attach the end caps and pad retaining spring. In case of C54 models, fit new pads with appropriate orientation, lay caliper on pads, fit new mounting bolts and reconnect wear indicator. In the case of Brembo models, the new pads should be installed with proper orientation, the retaining springs to be installed and the retaining pins to be driven in. Lastly, press the brake pedal several times to make sure that the pads and disc are contacting, repeat the same procedure with the other caliper, and install the wheels and bolts, lower the vehicle, tighten the bolts, inspect the level of brake fluid, and test the brakes.

Question 2

How to remove and replace the rear Brake Pad Set on Audi A4?

Accepted Answer

Loose the back wheel bolts and block the front wheels and get the back of the vehicle higher, and place it firmly on jackstands before removing the rear wheels. Get the parking brake cable and the retaining clip out, and unhook the cable of the parking brake lever. Take out the caliper mounting bolts and at the same time keep the guide pins in place using an open-end wrench so that they do not rotate and the mounting bolts should be disposed of because new ones are required to install. On RS4 models, one can replace the brake pads by lifting up the caliper and swinging the lower damper out without loosening the upper damper bolt; a replacement of the damper is required after removal. Disengage the caliper and lift it off the brake pads, then hold it by a length of wire, which is tied to the suspension strut so that the caliper is not left to hang on the loose brake hose. Take out the brake pads and guide clips of the caliper mounting bracket, and ensure that the anti-rattle springs are not damaged or fitted loosely so the guide pins slide readily and the rubber boots are not frayed. In the event that the guide pins are good, grease them with high-temperature brake grease and put them back. Cleaning the caliper and piston using brake system cleaner, check the dust seal and piston and any damage or leakage and change the caliper where necessary. In order to fit the new brake pads, insert a brake bleeding kit into the caliper bleed screw and opening and then fully retract the piston into the caliper bore by rotating it clockwise with a retraction tool or needle-nose pliers, then empty surplus brake fluid by connecting the brake bleeding kit. It is necessary to tighten the bleed screw with the immediate retraction to avoid air infiltration into the system and remember that the ABS unit is vulnerable to the impurities of the brake fluid. Removal and installation of the pads in the mounting bracket: Peel the protective sheet of the pad backing plates and assemble the pads in the breaking disc side. After carefully positioning the pad anti-rattle springs, slide the caliper back into position accordingly over the pads and replace the mounting bolts and screw them in to the correct torque without turning the guide pins. Proceed to repeat the process with the other rear brake caliper and then attach and attach the parking brake cable. Keep on pressing the brake pedal many times to make sure that the pads are firmly touching the discs and that the discs turn easily as normal pedal feel is restored. Install the wheels and wheel bolts, bring the vehicle down to the ground and screw the wheel bolts to the required torque. Test the working of the brakes and ensure that the level of brake fluid is checked and top-up where necessary before putting the vehicle into normal service.

Genuine Audi A4 Brake Pad Set

29 Brake Pad Sets found

Audi A4 Brake Pads Part Number: 8E0-698-151-H

Audi A4 Brake Pads Part Number: 4D0-698-451-G

Audi A4 Front Pads Part Number: 8D0-698-151-C

Audi A4 Brake Pads Part Number: 8E0-698-451-N

Audi A4 Brake Pads Part Number: 8W0-698-451-AC

Audi A4 Brake Pads Part Number: 8W0-698-451-P

Audi A4 Brake Pads Part Number: 8W0-698-451-R

Audi A4 Brake Pads Part Number: 8E0-698-451-J

Audi A4 Brake Pads Part Number: 8K0-698-451-A

Audi A4 Brake Pads Part Number: 8K0-698-451-B

Audi A4 Brake Pads Part Number: 8K0-698-451-G

Audi A4 Brake Pads Part Number: 8W0-698-451-N

Audi A4 Brake Pads Part Number: 8W0-698-451-AE

Audi A4 Brake Pads Part Number: 8W0-698-451-AL

Audi A4 Brake Pads Part Number: 8W0-698-451-AH

Audi A4 Brake Pads Part Number: 8W0-698-451-AP

Audi A4 Brake Pads Part Number: 8W0-698-451-AQ

Audi A4 Brake Pads Part Number: 4B0-698-151-S

Audi A4 Front Pads Part Number: 8W0-698-151-BH

Audi A4 Brake Pads Part Number: 8E0-698-151-C

Audi A4 Brake Pad Set

Audi A4 Brake Pad Set Parts and Q&A

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