Elusive star adjuster for parking brake adjustment - Mercedes-Benz Forum
 
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#1 (permalink) Old 10-12-2008, 01:09 PM
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Elusive star adjuster for parking brake adjustment

I recently tried to adjust the parking brake on my '86 300E. I used the "remove lug bolt and peer" method often touted. However, I spent half an hour on each side, shining the flashlight into the hole and slowly rotating the wheel. But I never could spot the star wheel. I saw the holding springs, but that's all. As an old guy, I've done tons of star wheel adjustments on drum brake cars, so I know how they work. Is it perhaps better to remove the road wheel to get more access? Someone posted a pic with the rotor removed to illustrate the location of parts. It looked like the star wheel was in roughly the 11 0"clock position. But I couldnt find it on my car. The foot pedal goes down three clicks and stops, but the brakes won't hold an a slight grade. Hence, my quest.
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#2 (permalink) Old 10-12-2008, 02:01 PM
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I can't remember off hand if they are @ 11/1/?? o'clock on the 300E..

For the time you have invested thus far pulling the rotor would make things a lot simpler

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#3 (permalink) Old 10-12-2008, 03:52 PM
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Star wheel adjuster is at approx. 1 O'clock position. I have found it much easier to find with the wheel/rim removed.

Good Luck,

Jayare
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#4 (permalink) Old 10-13-2008, 01:40 AM
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I feel your pain! I did this on my car (230E). I tried with the wheel on but could also only see springs. So I removed the wheel and managed to find it. After that I could do the other side with the wheel still on.

I'm pretty sure mine was more of a 3 o'clock position... but may be different on a 230E? Wouldn't think so though. Either way with the wheel off you'll find it better
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#5 (permalink) Old 10-14-2008, 07:32 AM
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Its better to pull the brake rotor and clean the mechanism . One side on my car was metal to metal and the cable was sticking on the right side. A good cleaning would help greatly , mine growled as the brake set / backwards roll. Thats all gone.
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#6 (permalink) Old 10-15-2008, 01:07 AM
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Originally Posted by Uboater View Post
Its better to pull the brake rotor and clean the mechanism . One side on my car was metal to metal and the cable was sticking on the right side. A good cleaning would help greatly , mine growled as the brake set / backwards roll. Thats all gone.
Can you explain the processs of getting the rotors off?
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#7 (permalink) Old 10-15-2008, 05:16 AM
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Can you explain the process of getting the rotors off?
For a E320 , it may be the same for others.

Remove wheel - brake caliper unit ( keep the weight off brake hose )hang it on coat hanger or wire - remove the flush Allen bolts outside the wheel bearing cap - tap brake rotor off outward with a rubber or plastic hammer while turning it , in some cases a bit of heat from a propane torch is needed ( allen area ). Most come off quickly .
Make sure the brake is off and the other tires have bricks / 4x4 lumber to stop from rolling

Last edited by Uboater; 10-15-2008 at 05:19 AM.
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#8 (permalink) Old 10-15-2008, 01:43 PM
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I found the adjuster, as suggested, at the 1 o'clock position (driver side). But only with the wheel off. I could not see it otherwise. In any case, it's not all that eye-catching. When I have more time, I'll remove the rotors and clean everything up.

Thanks for your help.
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