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Old 01-31-2006, 07:41 PM
Registered User
Join Date: Jan 2006
Location: San Diego, CA USA
Posts: 14
Screeching noise and my car will hardly move...I feel like Charlie Brown!

I installed Mercedes Benz Lug-Locks the other day on my 99 CL500. The locks were longer than the standard lug, but I didn’t give it much thought since it still went in, though it was quite tight (I had to torque it to get it to ‘seat’ in).

I went to move the car and it would hardly move. So I uninstalled the lug-locks and put the original lugs back in. Unfortunately, when I try to move the car the rear wheels, especially the drivers side rear wheel, makes a horrible screeching high-pitched noise along with the fact that the car moved very slowly as if the emergency brake is on. The car is difficult to move to say the least.

A couple of notes:
-I’m obviously mechanically challenged .
-I uninstalled the rear wheels to see if I could notice anything wrong but did not notice anything out of place as far as I could tell.
-I did not rotate the rotors when I uninstalled the wheels.
-The rotor/hub on the driver’s side would only move a ‘shimmy’ back and forth.
-I have subscribed to the but I wasn’t able to find anything that would clue me in to my problem.

Thanks for any help that you can give.

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Old 01-31-2006, 08:25 PM
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Join Date: Jul 2005
Location: Eau Claire WI
Posts: 968
how much longer? I'd try to see if taking the luglock off would let me rotate the wheel. I think the longer lug screwed something up, but I dont know the car
do NOT drive the car untill its fixed
95 Honda Shadow ACE 1100.
1999 Plymouth Neon Expresso. 2.4 swap, 10.5 to 1 comp, big cams. Autocross time attack vehicle!
2012 Escape, 'hunter" (5 sp 4cyl)
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Old 01-31-2006, 08:41 PM
Registered User
Join Date: Feb 2003
Location: Ontario, Canada
Posts: 3,160
When installing lugbolts that are too long ( it doesn't take much ), the extra length will bind on the parkingbrake mechanism, and sometimes distort or damage it.
You'll have to pull the rotors and take a look at it.
2007 C 230 Sport.
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Old 01-31-2006, 08:52 PM
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Join Date: Jun 1999
Location: Albuquerque, NM USA
Posts: 1,946
On lug bolts, too long--even just a little--is NOT ok.
Kent Christensen
'07 GL320CDI, '06 SLK350
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Old 01-31-2006, 09:25 PM
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Join Date: Apr 2000
Location: So. Cal
Posts: 4,430
Concur with Manny. Too long a lug bolt can destroy the parking brake mechanism. Rear rotors need to be pulled for verification (parking brake assembly is a complete separate system from the regular brakes).
Mike Tangas
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72

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Old 01-31-2006, 10:31 PM
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Join Date: Jan 2006
Location: San Diego, CA USA
Posts: 14
Thanks everyone for the replies.

Thanks for the replies.

The consesus here and through someone else, seems to be that I screwed up the E-Brake mechanism. It's a stupid and expensive mistake, but Oh-well .

Thanks again for all the responses, it's greatly appreciated.
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Old 02-03-2006, 07:49 PM
Registered User
Join Date: Jan 2006
Location: San Diego, CA USA
Posts: 14
Update on Parking Brake Mechanism Problem

Hey guys, I wanted to update you as well as for archive reasons.

So I had my CL500 flatbeded to my mechanic. I explained the problem I was having along with the probable diagnosis. Sure enough it was the parking brake mechanism as stated above by Manny (Thanks).
Part Number-140.420.09.20 . The parking brake springs were broken by the length of the lug-locks on the rear wheels. So they replaced the entire mechanism including the brake shoes and springs.

So the lug-locks were apparently the correct lug lengths for the OEM wheels from MB but unfortunately they were incorrect for the after market 20" wheels I have on the car. An expensive mistake but at the end of the day just a mistake.

Thanks to everybody for their help.

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