Missing caliper bush on '91 E34 535i

Gerhardm32

///Member
I have replaced the front brake pads on my '91 e34 535i on Saturday and found that there is a bush that keeps the caliper stable missing. See pic below. Will I be able to find this separate or not as the others are all fine.

On the left you will that the top bush is missing on the right hand caliper
imgp0863-58395915.jpg


Will need to do a proper bleeding of the brake system as the right side grabs harder than left.
This is the pads on the right side of the car, left had about 5mm of life left but also cracked
imgp0866-22954809.jpg


The disc doesn't have damage though
imgp0864-47320750.jpg


I also need those 2 seals under the brake fluid reservoir on the master cylinder, as per Bemow agents only
 

zaleonardz

Well-known member
Gerhard,

Take that entire caliper to Wingate in Benrose area (you can find them on the web)

They will have that bush, or new bushes, as well as seals and dust boots.

Should cost you about 300 to 400 bucks to recon both calipers.

As for the fluid reseviour seals, they are really easy to find, the ATE fluid res container is common on many vehicles, BMW to Volvo, and you should be able to find a new container with seals from a junker, as long as it still has fluid in, the seals will be fine.

I also have a spare set of caliper seals (if they are the same as the E34 540) here, but no dust boots, and yours are looking terrible, I would not be surprised if you got dirt into the main cylinder and its scratched inside.

Does the 535 have the H31 braking system (double master cylinders) or the traditional drum brake booster ?

Give a scream if you need help,
 

Gerhardm32

///Member
Single master cylinder (the traditional drum brake booster). Would love to recon these calipers by myself, is it difficult to get the old stuff out or not?

I am servicing the 2 side shafts next week as well and that's when I want to sort out those 2 seals on the res. I have always wanted to do something like this and now I have the change of restoring this old lady a bit to her former glory. There is a lot of small things to do but I am getting there. I just want the mechanical side to stay in shape.
 

zaleonardz

Well-known member
Not at all man,

Job is as easy as pie, all you need in terms of tools is a vice, and a compressor makes it really nice to get the piston out, and a block of wood.

Install the caliper safely into the vice, insert a block of wood where the brake pads go, and add some air using a compressor through where the hydraulic line connects, and the piston will pop right out. The block of wood protects the piston, as its going to shoot out when you add the air, do not get your hands in there while you apply air, you will loose them.

Then buy the new seals, soak them in brake fluid, pop off the old seals with a sharp screw driver, slide on the new seals, put the pistons back into the cavity, pop on a dust boot, and you have just serviced your caliper.

Think it took me about 2 hours to rebuild all 4. and most of that was cleaning.

Pop past with the calipers, and I shall help you quickly, but its an easy job

Seee this thread.

http://www.bmwfanatics.co.za/showthread.php?tid=3146&highlight=60mm
 

Gerhardm32

///Member
Currently my only ride, otherwise a mountain bike. Will shout if help is needed, thanks. That thread will help me a lot.

On the photo's, it looks like you have the face lift e34 540. NICE!!! I love the grills and mirrors on the face lift E34's
 

zaleonardz

Well-known member
Yep,

Mine is a 95/03 manuf date, so it was one of the last ones made. I was really lucky to pick her up for the price I did.

Give a shout if you need help.
 

Raybimmer

New member
Gerhard on e36 I replaced two with " Ate " and number " 11 6171-0022 1 " and " DAG 7404-5 " markings on . R20.00 at scrapyard included plastic cover pieces . Just pushes in .
Good luck .
 
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