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Pelican Technical Article:

Brake Caliper Replacement

Kerry Jonsson

Time:

1 hour1 hr

Tab:

$250

Talent:

***

Tools:

5mm, 7mm Allen head, 19mm socket with ratchet

Applicable Models:

Mercedes-Benz R129 (1990-02)

Parts Required:

Brake caliper

Hot Tip:

Remove brake pads first before removing caliper

Performance Gain:

Repair leaking system or seized caliper

Front Brake Caliper First you have to loosen the brake hose, you will remove it later.
Figure 1

Front Brake Caliper First you have to loosen the brake hose, you will remove it later. Using a 14 mm line wrench, loosen the brake hose at the caliper. 

Front Brake Caliper Using a 10 mm wrench, remove the brake pad wear sensor electrical connector bracket fastener, then remove the bracket.
Figure 2

Front Brake Caliper Using a 10 mm wrench, remove the brake pad wear sensor electrical connector bracket fastener, then remove the bracket.

Front Brake Caliper This picture illustrates the inside of the caliper.
Figure 3

Front Brake Caliper This picture illustrates the inside of the caliper. Remove the two 19 mm fasteners (green arrows). The brake pads have already been removed from the caliper.

Front Brake Caliper You can now remove the caliper from the spindle.
Figure 4

Front Brake Caliper You can now remove the caliper from the spindle. As you lift it off, twist the caliper to unscrew the brake line. Installation is the reverse of the removal steps. Screw brake hose into new caliper, leave it loose for now. Install the caliper to the spindle, then install the two fasteners and tighten them. Tighten the brake hose and attach the bracket for the brake pad wear sensor electrical connector. Reinstall brake pads and add brake fluid to the reservoir. Bleed the brakes. See our technical article on brake bleeding.

Rear Brake Caliper Using a 14 mm line wrench, loosen the brake hose, you will remove it later.
Figure 5

Rear Brake Caliper Using a 14 mm line wrench, loosen the brake hose, you will remove it later.

Rear Brake Caliper Using a 10 mm wrench, remove the brake pad wear sensor electrical connector bracket fastener, then remove the bracket.
Figure 6

Rear Brake Caliper Using a 10 mm wrench, remove the brake pad wear sensor electrical connector bracket fastener, then remove the bracket.

Rear Brake Caliper This picture illustrates the inside of that caliper looking at the left side rear spindle.
Figure 7

Rear Brake Caliper This picture illustrates the inside of that caliper looking at the left side rear spindle. The brake hose has already been removed, as I was replacing it. If you are not replacing it, you will unscrew it once the caliper is removed. Remove the two 17 mm fasteners (green arrows). You can now move the caliper from the spindle, as you lift it off, twist the caliper to unscrew the brake line. Installation is the reverse of the removal steps. Screw brake hose into new caliper, leave it loose for now. Install the caliper to the spindle, then install the two fasteners and tighten them. Tighten the brake hose and attach the bracket for the brake pad wear sensor electrical connector. Reinstall brake pads and add brake fluid to the reservoir. Bleed the brakes. See our technical article on brake bleeding.


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Page last updated: Wed 12/7/2016 03:07:17 AM