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Old 01-05-2004, 07:59 PM   #1 (permalink)
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Date registered: May 2003
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Parking brake adjustment

The parking brake pedal on my 560 is now getting to the point where it's rediculously stiff. It's been getting worse over the course of about a year, and it's now getting to the point where it's absurd.

It also doesn't disengage properly; the parking brake itself will disengage, but there's enough slack in the pedal that if I don't hold it up with my foot for a minute or two after I start driving, it'll fall down far enough to put the parking brake light on, which is really irritating...

So, how do I go about adjusting the parking brake?
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Old 01-06-2004, 05:59 PM   #2 (permalink)
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RE: Parking brake adjustment

Geeky1,

My parking break works - but has a difficult time releasing all the way back up. ie: the red light on the dash remains on until I play with pulling the pedal up with my left for for a while... I tell others not to use it at all.

My local indy MB shop told me when I bought the car to "live with the hassle," as it would be SEVERAL hours dismantling the entire dash, etc. to get at the cable to lube it.

'didn't answer your question exactly, but hope this helps?
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Old 01-06-2004, 06:03 PM   #3 (permalink)
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RE: Parking brake adjustment

Oh fun. Sounds like it's time to tear into the dash* and see how it's done

*not on the car I drive, of course. This is what the parts car is for. [:D]
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Old 01-06-2004, 06:55 PM   #4 (permalink)
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RE: Parking brake adjustment

I might be way off to lunch on this one, but how about checking the return srings on the rear brakes?
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Old 01-06-2004, 07:09 PM   #5 (permalink)
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RE: Parking brake adjustment

Same problem here, not uncommon for cars of this vintage. I had the brake tightened/adjusted – it works great but there’s still a tiny amount of “play� allowing whatever makes the connection to the p brake dash light connect. First time it happened I thought I had a brake problem! It happens now very rarely but when it does I just pop it up with the top of my left shoe. Perhaps the electrical connection can be adjusted or replaced or disabled? Anyone? [?]
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Old 01-06-2004, 08:56 PM   #6 (permalink)
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RE: Parking brake adjustment

Quote:
jdc1244 - 1/6/2004 9:09 PM

Same problem here, not uncommon for cars of this vintage. I had the brake tightened/adjusted – it works great but there’s still a tiny amount of “play� allowing whatever makes the connection to the p brake dash light connect. First time it happened I thought I had a brake problem! It happens now very rarely but when it does I just pop it up with the top of my left shoe. Perhaps the electrical connection can be adjusted or replaced or disabled? Anyone? [?]
I have an '87 300 SDL and the parking brake works like new. I have never done anything to it other than change the brake shoes when they fail.

You may want to see if you can spray something like WD40 or some other spray lubricant on to the cable. What might work better might be garage door Lube. I sprays on as a liquid and later turns to a gel like grease, if you can find it.
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Old 01-08-2004, 10:14 PM   #7 (permalink)
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RE: Parking brake adjustment

...I like Big D's idea re: rear springs...

However, I think my case is more a matter of a weak parking break return spring than anything...
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Old 01-09-2004, 05:20 AM   #8 (permalink)
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RE: Parking brake adjustment

Two wire ties worked for me, I hooked one end around the brake pedal and the other on the little corner of trim that sticks out, just above the hood release.

Later when I went in for general repairs the mechanic fixed it without me even mentioning the problem.
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