1992 190E Brake replacement help needed.
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From: Valparaiso, IN
1992 190E
1992 190E Brake replacement help needed.
I've done the fronts but when it came to the rears I am lost. 2 large bolts to remove the calipers but how do I get the pads out? They are held in by two pins and I didnt want to split the caliper in half if that wasnt necessary. Any help would be appreciated.
Thanks,
Nik
Thanks,
Nik
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Joined: Dec 2002
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From: Scottsdale, Arizonai
'85 190E 2.3-16 '99 C280 '11 GLK350
"By the Book"
1) Knock holding pins out of fixed caliper by means of a punch. Remove cross spring.
2) Push brake pads out of fixed caliper by meas of pushing lever. Note: If brake pad is rusted down, use puller for removal of stuck brake pads.
If brake pad wear is high, check pistons of easy operation. If pistons are hard to move, recondition fixed caliper.
Brak disks which are badly contaminated at braking surfaces by deposits from lining (indicated by grey or blue discoloration of brake surfaces) must be cleaned prior to installing new brake pads.
3) Clean guide surfaces for brake pads in fixed caliper with brake caliper brush.
4) Check dust caps for cracks. If dust cap is damaged remove and disassemble fixed caliper, since penetrating dirt will quickly lead to leaks in fixed caliper.
5) To prevent overflowing of expansion tank when the piston is pushed back, draw some brake fluid from expansion tank.
6) Push both pistons back with resetting device.
7) Measure thickness of brake disc. To make sure that the wear limit is not below specifications up to next change of brake lining, the dimension should be 0.3mm above permissible wear limit of 7.3mm
8) If dimensions are below permitted test dimension of 7.6 mm, renew brake disc.
9) Lightly coat brake pads (edges) with specificed lubricant and insert brake pad into caliper.
10) Position cross spring and knock holding pin into fixed caliper.
11) Actuate brake pedal several times energetically until firm resistance is felt. Then check level of brake fluid in expansion tank and top up, if required.
Note: New brake pads must be braked in carefully, that is, the vehicle should be braked several times from 80 to 40 km/h at slight pedal pressure.
Prior to each deceleration, permit brake to cool slightly. Braking to a stop under deceleration should be attempted only with run-in linings.
1) Knock holding pins out of fixed caliper by means of a punch. Remove cross spring.
2) Push brake pads out of fixed caliper by meas of pushing lever. Note: If brake pad is rusted down, use puller for removal of stuck brake pads.
If brake pad wear is high, check pistons of easy operation. If pistons are hard to move, recondition fixed caliper.
Brak disks which are badly contaminated at braking surfaces by deposits from lining (indicated by grey or blue discoloration of brake surfaces) must be cleaned prior to installing new brake pads.
3) Clean guide surfaces for brake pads in fixed caliper with brake caliper brush.
4) Check dust caps for cracks. If dust cap is damaged remove and disassemble fixed caliper, since penetrating dirt will quickly lead to leaks in fixed caliper.
5) To prevent overflowing of expansion tank when the piston is pushed back, draw some brake fluid from expansion tank.
6) Push both pistons back with resetting device.
7) Measure thickness of brake disc. To make sure that the wear limit is not below specifications up to next change of brake lining, the dimension should be 0.3mm above permissible wear limit of 7.3mm
8) If dimensions are below permitted test dimension of 7.6 mm, renew brake disc.
9) Lightly coat brake pads (edges) with specificed lubricant and insert brake pad into caliper.
10) Position cross spring and knock holding pin into fixed caliper.
11) Actuate brake pedal several times energetically until firm resistance is felt. Then check level of brake fluid in expansion tank and top up, if required.
Note: New brake pads must be braked in carefully, that is, the vehicle should be braked several times from 80 to 40 km/h at slight pedal pressure.
Prior to each deceleration, permit brake to cool slightly. Braking to a stop under deceleration should be attempted only with run-in linings.
