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- Joined
- Mar 14, 2005
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- 164,073
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- Age
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- Location
- Daventry
- Your Mercedes
- 2002 SL500, 216 CL500, all fully loaded
rear brake Disc
Though I have not changed mine this is the run down and it applies to most MB's that use the ATE single piston sliding shoe rear caliper.
Warning, remove the brake reservoir lid and check the level of the fluid, if too high it can spill out when the pistons are pushed back
Tools needed.
7mm allen socket or key.
Torx 30 socket.
2-4lb club hammer
1/4" flat bladed screwdriver
box 12" high to rest the calliper on
On cars with SBS the system must be deactivated by withdrawing the multi plug on the SBC pump.
Unplug the sensor wire noting the hole used, twin wire sensors should be replaced.
With car car jacked and on stands (for safety)Car in N and parking brake off, This is why you need stands, take off the retaining clip 70 in the link.
You remove the rear caliper complete with pads by removing the 2 rubber bungs in the two stand off pipes, Insert the allen key and, undo and withdraw the two long screws 60. with the pistons eased back with a screw driver blade between the disc and pad. slide the calliper off and place on the box so that the pipes are not stretched.
Rotate the wheel, and by looking through a wheel stud hole (sometimes a special) so that you can see the ratchet adjuster for the parking brake shoes,400 with the flat bladed screwdriver flip the ratchet wheel round to back off the parking shoes. Remove the single screw with the rorx 30 key and withdraw. the disc/drum will now knock off with the hammer, if it moves and then goes tight,the parking shoes are not backed off enough.
Clean the face of the wheel carrier removing any rust, de grease the new Disc and slide on noting the correct way so the the fixing screw hole lines up, replace the screw.
Re adjust the parking brake ratchet so the the drum will not turn, tap around the drum part with a copper or soft hammer, then apply the parking brake a couple of times, then release it. If the drum now spins easily tighten again the adjuster till it will will not turn, then back off the adjuster so that the drum turns and is not tight, a slight touching is OK
At this point you can unclip the old pads from the calliper. Now the pistons have to be pushed back, some use a clamp, I use a lever. grease the rear of the pads with the correct grease and clip onto the piston.
The calliper can now be fe fitted to the carrier plate and the anti rattle spring retainer fitted ( now is your chance to paint these bits if rusty) re fit new sensor wire.
At this stage you can re connect the SBC pump connector, open any door and the pump will start up,,sit in the car with engine running and press the pedal quite hard 10 times
Refit the road wheel, lower the car to the fround and tighten the wheel bolts. Replace lid on fluid tank and tell yourself that you have saved a few hundred £££ when drinking your coffee and cleaning up, not forget to clean all of the tools so that you do not get black the next time that you touch them.
I enclose the link
http://www.detali.ru/cat/oem_mb2.as...GA=722.633&CT=F&cat=65P&SID=42&SGR=045&SGN=02
and a photo of a 210 rear brake showing the parking brake adjuster in place. You can see the large hole provided to adjust the parking brake shoes.
Attached Images
Though I have not changed mine this is the run down and it applies to most MB's that use the ATE single piston sliding shoe rear caliper.
Warning, remove the brake reservoir lid and check the level of the fluid, if too high it can spill out when the pistons are pushed back
Tools needed.
7mm allen socket or key.
Torx 30 socket.
2-4lb club hammer
1/4" flat bladed screwdriver
box 12" high to rest the calliper on
On cars with SBS the system must be deactivated by withdrawing the multi plug on the SBC pump.
Unplug the sensor wire noting the hole used, twin wire sensors should be replaced.
With car car jacked and on stands (for safety)Car in N and parking brake off, This is why you need stands, take off the retaining clip 70 in the link.
You remove the rear caliper complete with pads by removing the 2 rubber bungs in the two stand off pipes, Insert the allen key and, undo and withdraw the two long screws 60. with the pistons eased back with a screw driver blade between the disc and pad. slide the calliper off and place on the box so that the pipes are not stretched.
Rotate the wheel, and by looking through a wheel stud hole (sometimes a special) so that you can see the ratchet adjuster for the parking brake shoes,400 with the flat bladed screwdriver flip the ratchet wheel round to back off the parking shoes. Remove the single screw with the rorx 30 key and withdraw. the disc/drum will now knock off with the hammer, if it moves and then goes tight,the parking shoes are not backed off enough.
Clean the face of the wheel carrier removing any rust, de grease the new Disc and slide on noting the correct way so the the fixing screw hole lines up, replace the screw.
Re adjust the parking brake ratchet so the the drum will not turn, tap around the drum part with a copper or soft hammer, then apply the parking brake a couple of times, then release it. If the drum now spins easily tighten again the adjuster till it will will not turn, then back off the adjuster so that the drum turns and is not tight, a slight touching is OK
At this point you can unclip the old pads from the calliper. Now the pistons have to be pushed back, some use a clamp, I use a lever. grease the rear of the pads with the correct grease and clip onto the piston.
The calliper can now be fe fitted to the carrier plate and the anti rattle spring retainer fitted ( now is your chance to paint these bits if rusty) re fit new sensor wire.
At this stage you can re connect the SBC pump connector, open any door and the pump will start up,,sit in the car with engine running and press the pedal quite hard 10 times
Refit the road wheel, lower the car to the fround and tighten the wheel bolts. Replace lid on fluid tank and tell yourself that you have saved a few hundred £££ when drinking your coffee and cleaning up, not forget to clean all of the tools so that you do not get black the next time that you touch them.
I enclose the link
http://www.detali.ru/cat/oem_mb2.as...GA=722.633&CT=F&cat=65P&SID=42&SGR=045&SGN=02
and a photo of a 210 rear brake showing the parking brake adjuster in place. You can see the large hole provided to adjust the parking brake shoes.
Attached Images
