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Car Forum / Mercedes-Benz Cars / January 2005brake judder
My 1984 Merc 280e sort of judders as it comes to a halt. No problem stopping, just a sort of grabbing as it comes to a halt. Any ideas anyone? tia Antony > My 1984 Merc 280e sort of judders as it comes to a halt. No problem > stopping, just a sort of grabbing as it comes to a halt. Any ideas > anyone? Although I have no idea what juddering is, this could be many things... Rotors which are out of round are a first guess. Do you feel any side to side wiggling when this happens? Try stopping with the emergency brake only and see if that does the same thing. If so then it's a problem with the rear wheels and it's not related to hydraulics. Good Luck, Marty >> My 1984 Merc 280e sort of judders as it comes to a halt. No problem >> stopping, just a sort of grabbing as it comes to a halt. Any ideas >> anyone? > > Although I have no idea what juddering is, this could be many > things... Rotors which are out of round are a first guess. Actually I don't mean out of round... Sorry! I mean warped or not flat. >> My 1984 Merc 280e sort of judders as it comes to a halt. No problem >> stopping, just a sort of grabbing as it comes to a halt. Any ideas >> anyone? > > Although I have no idea what juddering is, this could be many things... > Rotors which are out of round are a first guess. Assuming that the OP's term "juddering" means "pulsing at slow speeds" or "vibrating at high speeds", then I would think like you in that the rotors are not true (i.e. warped). This can usually be resolved by having them turned on a lathe, unless they are below spec. If they are below spec (i.e. worn thinner than manufacturer's recommendations), that could be what caused them to be warped. However, rotors can also become warped when overheated, as could happen with a stuck caliper or other system defect. In either case, a good inspection of the brake system is in order. > Do you feel any side to side wiggling when this happens? If so, then it could be a wheel or tire problem. > Try stopping with the emergency brake only and see if that does the same > thing. If so then it's a problem with the rear wheels and it's not > related to hydraulics. I'm not certain about this particular, but the emergency brake may use a separate drum and shoe system for the emergency brake, so using it will not even engage the rear discs at all. This would, however, help rule out any tire or wheel problems.  Signature- RODNEY Possibly warped discs. John > My 1984 Merc 280e sort of judders as it comes to a halt. No problem > stopping, just a sort of grabbing as it comes to a halt. Any ideas [quoted text clipped - 3 lines] > > Antony >My 1984 Merc 280e sort of judders as it comes to a halt. No problem >stopping, just a sort of grabbing as it comes to a halt. Any ideas >anyone? Could be a couple of things. You'll need to have somebody that knows these cars very well look at it. Rotors shoulebe measured for out of round and replaced if not (they're stupid cheap) and if they're ok it could be a suspension (monor) problem. SignatureNeed Mercedes parts ? - http://parts.mbz.org http://www.mbz.org | Mercedes Mailing lists: http://lists.mbz.org 633CSi 250SE/C 300SD | Killies, killi.net, Crypts, aquaria.net 1970 280SE, 72 280SE | Old wristwatches http://watches.list.mbz.org |
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