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Old 09-26-2000, 04:33 PM
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Join Date: Aug 2000
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I need to have have the front rotors slightly turned down. Is rotor removal and installation relatively straight forward on this vehicle for a DIYer? Any feedback is most appreciated.


94 W129
98 Audi A4
98 BMW R1100RT
95 Chev S-10 4x4 ZR2
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Old 09-26-2000, 04:38 PM
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Join Date: Jul 1999
Location: CT, USA
Posts: 2,699
Yeah, it's really simple. I have the same brakes on my 500E. Just 2 big bolts holding the caliper to the hub. I'd strongly suggest the pads be removed first; simply knock out one of the two narrow stainless steel retaining pins (hitting toward the inside of the car) and the pads/retaining spring will come out quite easily. If re-using the pads, try to avoid removing the sensors, as you'll likely break them when doing so (I think when they heat up they bond to the pads)

All the best, Michael
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Old 09-26-2000, 09:10 PM
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Thanks for the detailed response, Michael... I can do this!

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Old 09-26-2000, 10:49 PM
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Location: New Bedford, MA USA
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Why do the rotors need turning? It is not recommended that MBZ rotors be turned. Check on this and what the problem is which would lead you to believe that the rotors need turning..

Jeff Lawrence
1989 300e
2000 Dodge Grand Caravan SE
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Old 09-26-2000, 11:56 PM
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why is it recommended that MBZ rotors not be turned?
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Old 09-27-2000, 08:27 AM
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When applying the brake, I feel a slight speed dependant oscillation through the steering wheel. Normally, this is a symptom of rotor warpage... In the past, a quick trip to a local machine shop and $15 later, problem solved...

I understand that removing material from the rotor results in less thermal mass (rotors will heat more quickly during braking and warp quicker.) However, if I get another 20-30k miles (3-4 years) out of the rotors, great!

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Old 09-27-2000, 08:46 AM
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There is not much tolerance for turning before the rotors are too thin.

The rotors are not real expensive, you will be better off replacing them.

Are you sure the problem is the front rotors? It is difficult to determine if your problem is in the front or the back. It will be difficult to turn the warp out of the rotors, and even if you do, they will probably be too thin afterwards.

Best of luck,

Larry Bible
'01 C Class, Six Speed
'84 Euro 240D, 523K miles
'88 300E 5 Speed
'81 300D Daughter's Car
Over 800,000 miles in
Mercedes automobiles
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