Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: Platinum1 on 23 April 2009, 15:48:14
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Back in October last year I had new discs and pads fitted to the front of my elite (00) have only done 1,200 miles since fitted but am now getting severe wheel judder. Now I know that it is a virtual myth about being supplied "warped" discs as they are very rare, more likely that the pads were not spotless and clean when fitted and some muck has embedded into the pad and only now is it aparent.
I would normally take the car back to the garage that fitted them but it is a long story, short version is that it was my old employer who did the job (they were Merc Benz specialist garage) and I now live 160 miles away so can't go back there.
Before I get another garage to fit more new pads and discs, would fitting new pads (cleaned properly) to my discs which still obviously feel like new because they are! cure the problem or is it another new set of matching discs and pads?
If it is the complete lot, which are the best pads and matching discs to fit on the omega and how much are the garages charging in general for this?
Thanks for any help, seems to be that since the car has clicked over the 100k mark I am getting all these problems inside a week and no problems at all in the last 2 years :(
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Back in October last year I had new discs and pads fitted to the front of my elite
Were they genuine VX or pattern :question
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Think they fitted non gm parts, have not found the reciept yet, they said they would be fine, did think at the time it would have been better for genuine parts but they were supposed to be very knowledgable Mercedes Benz mechanics and who was I to question...................oh I was the customer! but they did it very cheap for me and it was very convenient to be done while I was at work.
Take that as a lesson............always use genuine parts!!!
mind you, even non genuine new pads and discs should last longer than 1,200 miles fgs :)
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Learn the lesson - I fitted non Vx disks & pads to mine - knackered in less than 5K.
Get genuine Vx discs and pads - will cure and stay cured (about £70 on Trade Club last time I bought a set) :y
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Lesson learnt :o
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Have you a weblink for trade club, not heard of them before?
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trade club is for vauxhall dealers. join abs to get tc discount
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I take it you mean you get juddering when braking only :question and if so have you checked to see if you have any other problems such as damaged calipers etc. because unless you're heavy footed :-/ then i would have thought that they would have lasted longer than they have :o.
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first check: front geometry..tire balance
second check : wishbones condition..
have you ever washed it when discs are hot with pressurized water..
even if they were original pressurized cold water can damage hot discs :-/
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Now that is a point to be questioned! I own a valeting company and the car has almost certainly been pressure washed with wheels just been run, everyday it has a full valet (not a normal practise I know) but a top surgeon would be able to conduct open heart surgery inside/out on my car and guaranteed to be sterile it is that clean. ;D
Mind you, the state of most hospitals now days, not such a good point but you know what I mean ::)
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I take it you mean you get juddering when braking only and if so have you checked to see if you have any other problems such as damaged calipers etc. because unless you're heavy footed then i would have thought that they would have lasted longer than they have .
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Yep, only on braking, have not checked calipers as can't see how they can be damaged if not been touched or knocked, Not heavy footed at all (Ex proffesional chauffuer so never use the brakes) only in other peoples dire decisions (old people who can't drive for instance). ;D
I agree with you, they should last longer, even factored parts
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some basic checks first before you go any further imho.
Wheel bearings, jack car and hold wheel at 12 and 6 oclock, rock the wheel and check for play. If the bearing is worn then the disk wont be central, when the pads grab the wheel it sets off a judder.
Wishbone bush play, tends to give intermitent judder, so may not be your problem in this case but bushes are so often shot down to age alone it def worth checking. They do move as they are rubber, but they should be firmly held, no slop. Jack and hold the wheel at 9 and 3 oclock and get someone to press the brake. You should feel controled firm movement with some good pressure applied, not loose play. Any hard knocking can be trackrod ends to stearing arm. Also get a bar and lever the wishbone joints look for same feel.
Sticking caliper, spin the wheel when jacked and feel if the wheel spins freely, if it binds then you could well have sticking caliper sliders, these allow the caliper to centre on the disc, if they dont slide then as the pads wear one side will rub constantly, possibly warping the disc which you can also check when spinning the wheel by hand, listen for a shush shush shush noise or uneven drag when the wheel turns.
Disc not centred, or badly seated. Involves removing wheel and caliper. Then remove disc, check mating surfaces are clean with no burs or dings that prevent the disc sitting flat to the hub. Then refit the disc with the wheel bolts to centre the disc, tighten the 5 mill allen key to hold disc in place. Remove wheel bolts and refit wheel.
Hopefully with those checks you should find your problem. Hth :-)
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some basic checks first before you go any further imho.
Wheel bearings, jack car and hold wheel at 12 and 6 oclock, rock the wheel and check for play. If the bearing is worn then the disk wont be central, when the pads grab the wheel it sets off a judder.
Wishbone bush play, tends to give intermitent judder, so may not be your problem in this case but bushes are so often shot down to age alone it def worth checking. They do move as they are rubber, but they should be firmly held, no slop. Jack and hold the wheel at 9 and 3 oclock and get someone to press the brake. You should feel controled firm movement with some good pressure applied, not loose play. Any hard knocking can be trackrod ends to stearing arm. Also get a bar and lever the wishbone joints look for same feel.
Sticking caliper, spin the wheel when jacked and feel if the wheel spins freely, if it binds then you could well have sticking caliper sliders, these allow the caliper to centre on the disc, if they dont slide then as the pads wear one side will rub constantly, possibly warping the disc which you can also check when spinning the wheel by hand, listen for a shush shush shush noise or uneven drag when the wheel turns.
Disc not centred, or badly seated. Involves removing wheel and caliper. Then remove disc, check mating surfaces are clean with no burs or dings that prevent the disc sitting flat to the hub. Then refit the disc with the wheel bolts to centre the disc, tighten the 5 mill allen key to hold disc in place. Remove wheel bolts and refit wheel.
Hopefully with those checks you should find your problem. Hth :-)
good and detailed explanation :y :y :y
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some basic checks first before you go any further imho.
Wheel bearings, jack car and hold wheel at 12 and 6 oclock, rock the wheel and check for play. If the bearing is worn then the disk wont be central, when the pads grab the wheel it sets off a judder.
Wishbone bush play, tends to give intermitent judder, so may not be your problem in this case but bushes are so often shot down to age alone it def worth checking. They do move as they are rubber, but they should be firmly held, no slop. Jack and hold the wheel at 9 and 3 oclock and get someone to press the brake. You should feel controled firm movement with some good pressure applied, not loose play. Any hard knocking can be trackrod ends to stearing arm. Also get a bar and lever the wishbone joints look for same feel.
Sticking caliper, spin the wheel when jacked and feel if the wheel spins freely, if it binds then you could well have sticking caliper sliders, these allow the caliper to centre on the disc, if they dont slide then as the pads wear one side will rub constantly, possibly warping the disc which you can also check when spinning the wheel by hand, listen for a shush shush shush noise or uneven drag when the wheel turns.
Disc not centred, or badly seated. Involves removing wheel and caliper. Then remove disc, check mating surfaces are clean with no burs or dings that prevent the disc sitting flat to the hub. Then refit the disc with the wheel bolts to centre the disc, tighten the 5 mill allen key to hold disc in place. Remove wheel bolts and refit wheel.
Hopefully with those checks you should find your problem. Hth :-)
good and detailed explanation :y :y :y
Agreed but bet you discs breaked!!
Trade Club card - join abs (AutobahnStormers - http://www.autobahnstormers.co.uk) - £20 joining fee buys you a trade club card. Their web site is http://www.tradeclub.co.uk
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some basic checks first before you go any further imho.
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Thanks for your great reply, in depth and very interesting, thanks for taking the time to post that, much appreciated. :y
I will try all of your suggested checks and see what I find.