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  #1  
Old 07-31-2003, 10:49 AM
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Join Date: Oct 2002
Location: Texas
Posts: 303
r129 sl500 park brake adjust..please

Has anyone adjusted the park brakes on their r129/ sl500 car?
I need an idiot proof way of doing that task. I just replaced the pads with PBR Deluxe front and back last weekend but the pedal seem to be still too far down before it engages. My w210 E300 D's park brakes engage in less than 5 clicks.. the SL maybe close to 8-10 clicks even after the pad change................please help.......
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1978 280 CE silver
1986 560 SL black
1987 300 SDL cream
1994 SL 500 brilliant green
1997 E 300d dessert silver
2005 FORD F250 Superduty Crew cab 4x4

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  #2  
Old 08-01-2003, 09:55 AM
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Join Date: Jul 2003
Location: UK
Posts: 47
Not sure about adjusting parking brake. But changing the pads will not affect the parking brake. They operate via two small brake shoes inside the rear disc.( You can only see them if you remove the rear disc.)

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Old 08-01-2003, 11:19 AM
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Join Date: Oct 2002
Location: Texas
Posts: 303
UH OHHHH

Really??????? I just did the rear and front brakes! I didn't see that. You mean that I have to remove and install 2 more other brake pads just for the park brakes?? I'll just catch that next time then..Thanks for the reply. BTW, how's your A/C doing this summer. Here in Texas, 80 degree mornings and 100 degree afternoons. The sl seem to cool alot slower than my w210 E300 d.
I guess that the black top doesn't help either. Your input would be greatly appreciated. ( my vent temp is max out @ 62- with 80 degree ambient and top down)
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a2


1978 280 CE silver
1986 560 SL black
1987 300 SDL cream
1994 SL 500 brilliant green
1997 E 300d dessert silver
2005 FORD F250 Superduty Crew cab 4x4

____ADMU____
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  #4  
Old 08-01-2003, 10:07 PM
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Join Date: Mar 2001
Location: Evansville WI
Posts: 9,616
They're not PADS, they're SHOES. They work like a small drum brake, with the "drum" being the cylindrical section of the rear rotors. To help you imagine this, you would see some sections of the parking brake mechanism by looking in the holes the wheel bolt screw into. I wouldn't mess with it without some training, it can easily be screwed up. The shoes themselves are adjusted with star wheel adjusters through one of the wheel bolt holes, but there is also an adjuster on the parking brake equalizer.
To adjust it correctly, the equalizer adjuster is slackened, then the star adjusters tightened fully and then loosened a predetermined number of teeth (sorry, I don't remember what the number of teeth are for a 129, I think it's 6 to 8 teeth), then the equalizer is adjusted to remove cable slack, and the number of clicks the pedal can be depressed is measured, and the cable can be further adjusted based on the number of clicks you get.

Gilly
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