Question about Mercedes-Benz E320
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Posted on Jan 02, 2017
Generally when you remove the caliper assembly the rotor slides over the hub assembly. Since I have not done a brake job on this particular model, it may possibly be held in place by the hub nut. Remove the caliper assembly first in order to be sure. I could only find two diagrams for the brake assembly for the E320, neither one had the size of the nut or allan bolt. The easiest way to get the size is to measure from one flat area directly across to the other flat area this will give you the size for the socket and allan wrench needed. If in the US, keep in mind that this is in a metric measurement, so it will calculate to millimeters, which makes it much easier to measure than the American standard. Also, if you do have to remove the hub nuts, they will not have to be replaced unless you scar the threads or round the corners.
Posted on Jul 09, 2008
So this is what it takes to replace rear brake rotors on a 2003 Mercedes E320;
1) open the bonnet (hood) of the car and loosen/remove the cap off of the brake fluid resevior.
2) remove outer spring clamp from brake assembly (it clips in to the iner edge of the holes of the caliper).
3)using a 7 MM allen wrench, remove the brake caliper.
4) using 18 MM box wrench, remove the caliper housing assembly off of the wheel hub.
5) using a star wrench, unscrew the rotor locking screw from the rotor
6) squirt some liquid wrench on the rotor hub and knock the rotor with a hammer to work the liquid wrench in.
7) using the same hammer, knock the rotor off the hub.
8) using a metal file, lightly file old residue off of the hub and place the new rotor on the hub.
9) set the hub by screwing in the lug nuts and then screw in the hub locking screw using the star wrench, then remove the lug nuts.
10) reinstall the caliper housing assembly onto the wheel hub using the 18 MM box wrench.
11) push back the brake claiper piston to its home position and install the inner brake pad (the one with the snap clips)
12) insert the outer brake pad in the claper housing assembly.
13) slide on the caliper housing with the inner brake pad in place (over the outer brake pad) and screw in the caliper screw rods using the 7 MM allen wrench
14) on the right wheel brakes, DO NOT FORGET to slide in the brake sensor (the one with the black connector) and connect it to the connector on the caliper housing.
15) be sure to reinsert the spring clamp onto the outer brake assembly to set the assembly squarely onto the wheel (there should be no wiggle in the brake assembly after the spring clamps are installed).
16) finally mount the wheels.
17) you can bleed the brakes at this point to release any trapped air (which is unlikely) but be sure to pump the brakes after starting the car BUT BEFORE MOVING IT to re-preassurize the brake system before driving the car.
17) ONE WEEK LATER - recheck brake assembly to ensure all is okay and brake fluid.
This proposed solution is for a 2003 Mercedes Benz E320 and NOT a 2005 model as stated by the limited option selection provided by FIXYA.com when initially describing the problem.
Posted on Jul 10, 2008
It pretty straight forward of you open the hood and look at the back of the headlamp. You see a metal clip right where the wiring harness plugs into the back of the lamp. Just take a common screw driver and pop the clip out (be careful you don't pop the clip down into oblivion as it does tend to spring out with a bit of force.) The clip is held in place by two star headed screws. You do not need to mess with these, just pop the clip out from under the screw head. I assume it will say something to this effect when you buy the new bulb but be sure not to touch it directly with your skin as the oils in your skin will shorten the bulb's life considerably.
Posted on Oct 01, 2009
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