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Brake Pads

Author : bmwe34.net Posted on : 02/12/2004
Model : BMW, 5 - Series (E34) 1989-96 Category : Brakes
Source : http://www.bmwe34.net
 

The brakes are one thing you don't want to forget while working on your Bmw E34.

Failure syndromes:
Brake lining message or light.



Front or rear pads
Brake cleaner spray and WD 40
19mm socket (Mike's 89 525 used 15mm in the rear and 17mm in the front. )
Caliper hex socket (7mm on the 535i)
Ratchet, extensions
Channel-lock pliers
New wear sensor
Anti squeak brake pad product


1. Lift the car and secure it with stands. Remove the wheel.
2. Unplug the brake wear sensor. And remove the brake hose grommet.
Spray brake cleaner to clean the brake assembly.

3. Remove the anti-rattle clip, prying it with a screwdriver.
4. Remove the caliper bolts (at the back of the caliper).

5. Before removing the caliper, push the caliper bolts all the way back. (You should also remove them and grease them lightly).
6. Don't forget to support it to the frame with strong wire.

7. Remove some fluid from the brake reservoir if this one is toped up (pressing the piston will displace fluid back into the reservoir).
8. Remove the old pads then using a piece of wood or rag to protect the piston, clean the caliper first then compress the caliper piston with a channel-lock pliers.
Using a C-Clamp and a flattened tin can spreads the pressure across the entire caliper piston, reducing the chance of pressing it back in funny.
9. It is a good time to check the caliper for leaks or piston that slide roughly.
10. You may want to apply some anti-squeak brake pad product at the back of the new pads. Insert the wear sensor on the new pad.
11. Installation is reverse of removal. Don't forget to push the caliper bolts all the way to the back before installing it, else the bolts will rest on top of the caliper carrier and you will not be able to install the caliper.
12. Depress the brake pedal several times to adjust the caliper and pads.

Tip from Todd G.: Use a 6" adjustable C-clamp to reset the piston before you remove the caliper bolts. This will make removing the caliper & spring much easier, not to mention, no bleeding fingers from a slipping channel lock.

You can also buy a tool to reset the piston at your local auto part store.

M5 3.8/ M540 (Canadian model) 4 pistons calipers
The calipers don't need to be removed to change the pads. There are 2 pins going through the pads that you have to remove.
Pressing the calipers pistons is another story: pressing one causes the other to come out, the best way is to leave the old pads in, press one side until both pistons are all the way back then install one new pad. Do exactly the same thing for the other side.
 

Pictures

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Click on the thumbnails to see larger images.

 

References

  • http://www.bmwe34.net
    •  


    Replacing the Rear Brake Pads and Rotors
    Model : BMW, 3 - Series (E36) 1991-99 Category : Brakes
    ... bolt. Remove this bolt using the hex socket. If the bolt is difficult to remove, apply some WD-40 or similar lubricant. 17. Under normal circumstances, the rotor should be able to be removed out at this point. Sometimes the rotor may be seized on and will not budge. The first thing to do is try hitting the back of the rotor (towards you) to release it. Note: Unless you are replacing the rotors, ... (more)
    Posted : 27 October 2004 Author : Baden Smith
     
    BMW Front Brakes (318ti vs 328 vs M3 vs e46)
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    ... (carrier) 2 x Front US or Euro (Floating) rotor 2 x Front M3 spindle (aka Kingpin, aka Hub) 1 x Set of M3 brake pads Upgrading to e46 330 Front Brakes 2 x Front 330 Caliper Carrier (34-10-6-750-158) 1 x Left Caliper (34-11-6-750-149) 1 x Right Caliper (34-11-6-750-150) 2 x Spring Clips (34-11-6-750-159) 2 x Front e46 330 rotor 1 x Set of 330 brake pads (330 brake pads are identical to M3 ... (more)
    Posted : 5 November 2004 Author : eMotors.ca
     
    Rotor Replacement
    Model : BMW, 5 - Series (E34) 1989-96 Category : Brakes
    ... the caliper and support it to the frame with strong wire (do not hang it with the hose). 4. Remove the 2 x 19mm brake pad carrier mounting bolts. Remove the brake pad carrier. Clean it with a metal brush. 5. Spray the rotor mounting bolt with WD 40. Take a hammer and give the rotor several hard hits directly above the bolt. Remove it with a 6mm hex wrench. If you round the bolt and cannot ... (more)
    Posted : 2 December 2004 Author : bmwe34.net
     
    850i Brake Upgrade
    Model : BMW, 5 - Series (E34) 1989-96, 535i Category : Brakes
    ... it is just like changing rotors and pads. I changed my brake lines to stock ones at the same time. I didn't want to use stainless steel ones because they are expensive and I am not a race car driver. As you can see there is not a lot of room left inside the 17" Racing Dynamics rims... The kit should work with 16" rims. As you can see... size does matter... Where to buy the kit: Rotors / ... (more)
    Posted : 5 December 2004 Author : Patrick, Ed & Phil Dorsey
     
    Painting Calipers
    Model : BMW, 5 - Series (E34) 1989-96 Category : Brakes
    ... result. Remove the calipers and the carriers. 2. Important step: use the small brush to clean entirely the different brake items. Then clean everything with some brake cleaner. Finish by spraying the cleaner included in the kit. Step 2 will determine the quality of the final work. 3. Hang the caliper and carrier somewhere safe and place a rag below. 4. Mix the two products (at 20C/68F ... (more)
    Posted : 5 December 2004 Author : Phil Dorsey
     
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