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Audi a8 back brake caliper noisy, tried to tighten but still slack

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The caliper is probably frozen and should be replaced.

Posted on Sep 16, 2009

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How to replace AUDI front brake disc


Atention!!!
Don't disconnect any brake line from caliper!
Don't disconnect any ABS sensor!
For change front brake pads you must raise vehicle, remove wheels, extract the retaining spring of the caliper, and remove the caliper as follow: 1. Do not disconnect the brake hose from the caliper, and do not allow the caliper to hang by the brake hose! 2. Remove top and bottom caps (on back side of the caliper) for access to guide pins, then unbolt and remove them from the brake carrier. Remove the caliper. 3. Now you must thoroughly clean the brake calipers (free of grease). 4. Remove outer brake pad from brake carrier. 5. Pull inner brake pad out of brake caliper piston. 6. Remove brake carrier from wheel bearing housing (two ribbed bolts). 125 Nm 7. Remove brake disc from wheel hub. 8. Install brake carrier on wheel bearing housing. Tightening torque for two ribbed bolts = 125 Nm. 9. Check up the brake fluid level on the reservor, and emptying if neccessary! 10. Push piston back into brake caliper housing. 11. Install inner brake pad (with expanding spring) in brake caliper piston. (Arrow marked on pad - if exist, must point in direction of brake disc rotation when vehicle is moving forward). 12. Install outer brake pad into brake carrier. 13. Bolt brake caliper housing to brake carrier using two guide pins. Tightening torque is 25 Nm. 14. Install both caps. 15. Insert retaining spring into brake caliper housing. Important: Depress the brake pedal firmly several times while the car is stationary so that the brake pads adjust to their normal operating positions!!! Check brake fluid level and top up if neccessary!!!

on Dec 18, 2009 | Audi A4 Cars & Trucks

1 Answer

How can i compress the caliper piston back of audi a6 2000 2.8l awd what kind of tools i need . Vise grip is not working.


For front brake pads replacement you need only usually wrench set, inclusive 7 mm allen key also.
But for rear brake pads replacement you need obligatory a special caliper piston pressing tool, in order to press back rear caliper piston with parking brake automatic adjustment!!!

For front brake pads. You should buy the brake pads (with wear sensor). For change front brake pads you must raise vehicle, remove wheels, extract the retaining spring of the caliper, and remove the caliper as follow:
1. Do not disconnect the brake hose from the caliper, and do not allow the caliper to hang by the brake hose!
2. Remove top and bottom caps (on back side of the caliper) for access to guide pins, then unbolt and remove them from the brake carrier. Remove the caliper.
3. Now you must thoroughly clean the brake calipers (free of grease).
4. Remove outer brake pad from brake carrier.
5. Pull inner brake pad out of brake caliper piston.
6. Check up the brake fluid level on the reservor, and emptying if neccessary!
7. Push piston back into brake caliper housing.
8. Install inner brake pad (with expanding spring) in brake caliper piston. (Arrow marked on pad - if exist, must point in direction of brake disc rotation when vehicle is moving forward).
9. Install outer brake pad into brake carrier.
10. Bolt brake caliper housing to brake carrier using two guide pins. Tightening torque is 25 Nm.
11. Install both caps.
12. Insert retaining spring into brake caliper housing. Important: Depress the brake pedal firmly several times while the car is stationary so that the brake pads adjust to their normal operating positions!!!

Check brake fluid level and top up if neccessary!!!

Oct 26, 2011 | 2000 Audi A6

2 Answers

Woh can i change brake disks and pads on audi a8 2005, rear hand brakes aon this model r electric and the piston on the caliper wont open to allow the new discs and pads into place. is there any way that i...


I'm assuming you have Lucas calipers, On that type of caliper you have to depress the piston and at the same time turn it clockwise.
You have to have the bleeder screw open when you do this.
I took a large size C-clamp to clamp down on the piston,then used a giant pair of channel locks to turn the piston.
You have to keep adding more pressure to the clamp while doing this it's somewhat awkward.
You must screw the piston all the way down for the new pads to fit.
Good luck,Gary

Dec 01, 2010 | 2005 Audi A8

1 Answer

How do you change front brake pads on an Audi A6 2006


How to change front brake pads & rotors (brake disc) on 2006 Audi A6:

Atention!!!
Don't disconnect any brake line from caliper!
Don't disconnect any ABS sensor!
For change front brake pads you must raise vehicle, remove wheels, extract the retaining spring of the caliper, and remove the caliper as follow:

1. Do not disconnect the brake hose from the caliper, and do not allow the caliper to hang by the brake hose!
2. Remove top and bottom caps (on back side of the caliper) for access to guide pins, then unbolt and remove them from the brake carrier. Remove the caliper.
3. Now you must thoroughly clean the brake calipers (free of grease).
4. Remove outer brake pad from brake carrier.
5. Pull inner brake pad out of brake caliper piston.
6. Remove brake carrier from wheel bearing housing (two ribbed bolts). 125 Nm
7. Remove brake disc from wheel hub.
8. Install brake carrier on wheel bearing housing. Tightening torque for two ribbed bolts = 125 Nm.
9. Check up the brake fluid level on the reservor, and emptying if neccessary!
10. Push piston back into brake caliper housing.
11. Install inner brake pad (with expanding spring) in brake caliper piston. (Arrow marked on pad - if exist, must point in direction of brake disc rotation when vehicle is moving forward).
12. Install outer brake pad into brake carrier.
13. Bolt brake caliper housing to brake carrier using two guide pins. Tightening torque is 25 Nm.
14. Install both caps.
15. Insert retaining spring into brake caliper housing. Important: Depress the brake pedal firmly several times while the car is stationary so that the brake pads adjust to their normal operating positions!!! Check brake fluid level and top up if neccessary!!!

Nov 26, 2010 | 2006 Audi A6

1 Answer

Anything special about changing front pads on audi a3? I've done honda, acura and toyota's.


For front brake pads replacement you need only usually wrench set, inclusive 7 mm allen key also. But for rear brake pads replacement you need obligatory a special caliper piston pressing tool, in order to press back rear caliper piston with parking brake automatic adjustment!!! For front brake pads. For change front brake pads you must raise vehicle, remove wheels, extract the retaining spring of the caliper, and remove the caliper as follow: 1. Do not disconnect the brake hose from the caliper, and do not allow the caliper to hang by the brake hose! 2. Remove top and bottom caps (on back side of the caliper) for access to guide pins, then unbolt and remove them from the brake carrier. Remove the caliper. 3. Now you must thoroughly clean the brake calipers (free of grease). 4. Remove outer brake pad from brake carrier. 5. Pull inner brake pad out of brake caliper piston. 6. Check up the brake fluid level on the reservor, and emptying if neccessary! 7. Push piston back into brake caliper housing. 8. Install inner brake pad (with expanding spring) in brake caliper piston. (Arrow marked on pad - if exist, must point in direction of brake disc rotation when vehicle is moving forward). 9. Install outer brake pad into brake carrier. 10. Bolt brake caliper housing to brake carrier using two guide pins. Tightening torque is 25 Nm. 11. Install both caps. 12. Insert retaining spring into brake caliper housing. Important: Depress the brake pedal firmly several times while the car is stationary so that the brake pads adjust to their normal operating positions!!! Check brake fluid level and top up if neccessary!!!

Aug 25, 2010 | 2007 Audi A3

1 Answer

Brake pad replacement 2004 audi a4 and rotor how do i do and what tools are neccessary?


YOU NEED REMOVE A LITTLE BRAKE FLUID FROM MASTER CYLINDER.THEN YOU RAISE VECHICLE SAFELY.SUPPORT IT WITH JACK STAND.MAKE SURE VECHICLE IS ON LEVEL SOLID GROUND.REMOVE TIRE OR WHEEL.THEN YOU NEED A LARGE C - CLAMP.PLACE C - CLAMP OVER BRAKE CALIPER AND BRAKE SHOE BACKING.TIGHTEN C - CLAMP JUST ENOUGH PUSH CALIPER PISTON BACK IN CYLINDER BORE TO REMOVE CALIPERS FROM ROTORS.TO REMOVE BRAKE CALIPER YOU NEED 2 OPEN AND BOX END WRENCHES ONE TO HOLD CALIPER SLIDE PINS AND THE OTHER WRENCH FOR LOOSEN CALIPER BOLTS.THEN YOU REMOVE CALIPER AND REPLACE FRONT BRAKE SHOES.IF YOU NEED TO REMOVE BRAKE ROTORS JUST REMOVE THE BRAKE CALIPER CARRIER SUPPORT BOLTS THE REMOVE THE BRAKE CALIPER CARRIER SUPPORT THEN REMOVE ROTOR.YOU NEED TO REPLACE BOLTS WITH NEWS AND USE LOCK TIGHT.THEN YOU PUT IN NEW BRAKE PADS IN CALIPER PUT CALIPER BACK ON SUPPORT CARRIER.REPLACE WITH NEW BOLTS USE LOCK TIGHT THEN TORQUE BOLTS TO 26 FT LBS.MAKE SURE MASTER CYLINDER COVER IN PLACE.WHEN YOU FINISH REPLACING BOTH FRONT BRAKE PADS PUMP BRAKE PEDAL TO SEAT BRAKE SHOES AGAINST BRAKE ROTORS SO YOU WILL HAVE FIRM BRAKES WHEN YOU APPLY THEM. THEN CHECK YOUR BRAKE FLUID LEVEL IN MASTER CYLINDER MAKE SURE ITS NOT LOW. MAKE SURE YOU HAVE FIRM BRAKES BEFORE DRIVING.IF YOU HAVE ANY PROBLEMS CHANGING FRONT BRAKE PADS YOU CAN GO TO ANY AUTO PARTS STORE AND BUY A HAYNES REPAIR MANUAL.

Jun 16, 2010 | 2004 Audi A4

1 Answer

Replacing brake pads on audi A8L 2006


take calipers off take pads out use "c" clamp to push caliper piston back in caliper, check rotors for grooving if grooved re machine or replace put new pads on re bolt to the hub & should be good to go repeat process for the other three unless you have rear drums

Oct 23, 2009 | 2006 Audi A8

1 Answer

Rear electronic patking brake/ caliper looks SCARY.


Your A8 and new shape A6s with electric parking brakes require an electric input to the vehicle to tell it to wind back the pistons/pads. Main dealers have this on their diagnostic equipment. You can also purchase after market tools that just do this operation, heres an example
http://www.alpha-bid.com/product244.html
I have only ever used a main dealer machine so im not sure how good an after market one will be. Im not aware of anyway of doing the job without an electrical input to wind back the pads, the motors are very powerful so I wouldnt reccommend trying it manually. Hope this helps.

Mar 12, 2009 | 2006 Audi A8

1 Answer

Brake caliper piston


Yes it is with the Audi caliper return tool. But you can also use a proper spring style spanner wrench but this is balky at best. If you try to use a pliers you will marr the piston walls thus causing you to have to buy more parts. The same caliper too, or at least a similar one is used for Porsche and it should work also. I have not see a generic tool that fits the European cars well but you may find one, that depends on where you are located at.

Oct 31, 2008 | 2003 Audi A6

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