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 Alldata.com but I wasn’t able to find anything that would clue me in to my problem.

Thanks for any help that you can give.

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
~Nate

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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)

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.

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2007 C 230 Sport.

On lug bolts, too long--even just a little--is NOT ok.

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Kent Christensen
Albuquerque
'07 GL320CDI, '10 CL550. '01 Porsche Boxster
Two BMW motorcycles

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).

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Mike Tangas
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72

'02 CLK320 Cabriolet - wifey's mid-life crisis

2012 VW Jetta Sportwagon TDI...at least its a diesel

Non illegitemae carborundum.

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.

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.