Wymian klocków hamulcowych BMW E36.pdf

Changing Brake Pads - 1

Vehicle:

BMW

Disclaimer:

Model(s):

E36

E36 M3

This information in this document is provided as a reference only.

The information is provided " as is " without warranty of any kind,

either express or implied, including, but not limited to, the implied

warranties of merchantability, fitness for a particular purpose, or

non-infringement.

No liability is assumed for use or interpretation of information con-

tained in these documents on this web site. Any decisions or ac-

tions based on the data or information contained in this site are

the responsibility of the individual user.

Should you decide that you want to change your brake pads on

your own, be sure that your car is properly jacked and supported.

Wear safety goggles or glasses at all times.

Introduction:

Changing the brake pads is fairly easy process. A novice you can expect to spend about 3.0 – 4.0

hours to change pads on all four brakes.

Tools:

The following tools will be needed to successfully change your brake pads:

3/8” Socket Wrench

7mm short hex bit socket

3lb hammer

Two flat head screwdrivers

C Clamp

18" of insulated solid wire or length from a coat hanger

Torque Wrench (optional)

Changing Brake Pads - 2

Supplies:

It is helpful to have the following supplies on hand:

New brake pads

Spares:

If you change your pads frequently and/or you participate in track events it is wise to keep these

spares on hand. They are either easy to brake, loose, or will wear out. You do not want to be without

these supplies, especially, if you are away from home.

Caliper spares kit:

• Front/rear Brake clips. These have tension and can fly away

from you when you remove them. If you force them they will

brake. You can not safely operate the car without these in

place.

• Hex guide bolt. The hex socket and threads on these can

wear with repeated changing.

• Hex bolt caps. These are small and easy to loose. These

caps keep the hex bolts clean and free from corrosion. The

hex bolt should also be clean to properly accept the hex

socket

Changing Brake Pads - 3

Instructions:

The following step by step instructions will lead you through changing your brake pads. These instruc-

tions assume that you have properly and safely jacked up your car, removed the wheel and the brakes

are cool. Pictures show different calipers from step to step (front/rear) but the actions are identical.

1. Remove brake clips

Insert the flat head screwdriver under the clip and

the other between the hub and the top of top of

the clip.

Pry the screwdriver between the hub and the top

of the clip towards the brake caliper. Pry until you

see the catches clip move to the outside of the

holes in the caliper.

Pry the other screwdriver towards the hub. Until

the clip springs free. You may have to adjust

your prying on both screw drivers until the clip

comes free. Be careful and make sure that your

face and hands are clear since the clip will pop

free.

Once the clip is removed you will want to set it

aside so it does not get stepped on or lost.

2. Remove guide bolt caps

There are two little plastic caps about the diame-

ter of a dime behind the caliper. Since you can

not see these easily you will have to feel around

for them.

Use your thumbnail to catch the edge and push

them out gently. You will push away from the cali-

per towards the wheel hub. Work it out about

¼"and then pinch with your thumb and forefinger

to pull it out. Avoid using a screwdriver to pry it

out. It comes out fairly easily and you do not want

to mare the plastic or damage the rubber sleeve

with the screwdriver. Set the caps aside along

with your brake clips so they do not get damaged

or lost.

Changing Brake Pads - 4

3. Disconnect wear sensor

There are only two brake wear sensors on the

car. One is on the front driver side and the other

is on the rear passenger side. It is a small green

insulated wire that runs from a connection

mounted in the wheel hub and leads to the edge

of one of the brake pads.

These are tricky to remove because the connec-

tor on the pad is ceramic. You do not want to

break this since it will trigger the brake warning

light in your car.

Gently using the flat end of your screw driver

push the sensor to the outside. Once it is about

half way off use your fingers to pinch and gently

pull while you continue to apply pressure with the

screw driver. You do not want to pull the wire out

of the sensor.

If you are changing to race pads or intend to

change the pads well before they are worn you

do not have to reattach the sensor. On a quick

change for a race day there is no need to risk

damage to the sensor by repeated removal and

installation. You do not want to leave the wire

hanging free if you are not going to reattach

it. You can double it back through the clip on the

shock tower.

You can also use electrical tape to secure the

wire to the shock mount.

In the rear, you can use the additional clip on the

lower control arm to double back the sensor.

Changing Brake Pads - 5

4. Free hex guide bolt

Using your 3/8"socket wrench with the hex bit

socket insert the bit into the hole where you re-

moved the hex caps. Be sure that your socket is

set for a counter clockwise catch. Turn the

wrench until bit inserts into the hex bolt. You have

to do this by feel since you can not see what the

recessed hex bolt. To loosen the hex bolt hold the

socket wrench in place near the head of the

wrench and tap the handle of the wrench with the

hammer to force it in a clockwise direction.

The removal of the nut is in reverse because your

angle of attack is from behind.

5. Loosen brake piston

Removing the caliper can be difficult especially if

the brake pads are old and worn. The piston in

the caliper will keep the pads firmly against the

rotor even when the brakes are not applied. You

will need to loosen the grip of the piston to facili-

tate the removal of the caliper. You will use a flat

head screw driver to push the piston back into the

caliper. Through the opening in the caliper you

will see the top of the brake pad and the slot in it

for the wear sensor. You can slide a flat head

screw driver into the sensor slot between the

brake pad backing and the piston. Gently pull

the screw driver towards you pressing the piston

back into the caliper. Make sure that the flat

head screw driver is in contact with the piston and

not the rubber flange. You do not need to insert

the screw driver beyond the depth of sensor

notch.

Removing the caliper will be much easier if you

take care to properly recess the piston.

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