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Steering wobble and burning smell - Calliper?

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Noticed a smell of burning after driving to Stansted and back at the weekend. Today, I had quite a pronounced steering wobble between 50 - 70 on the motorway. When I pulled over, the burning smell was back and seemed to be coming from the front right wheel.

Am iI right in assuming this is probably the right front calliper that has seized?

IIf so, can anyone recommend a good low cost replacement for me please?

Also, is it easy enough to change at home?

Thanks :)

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If you're capable of taking the caliper off then you're probably capable of fitting a new seal kit and refurbishing the caliper yourself. Works out cheaper than buying an entire new caliper. I'd usually recommend buying parts from a breakers yard but it's one of those things you'd probably run into the same problem again with a used item.

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Just had a look on europarts, new calipers was £85 - £120 actual (I'm assuming the surcharge is because they want your old one in exchange).

£85 isn't bad. Is the seal kit easy to do then?

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I paid £80 for a new refurb unit from ECP (on an exchange basis).

More expensive, but a lot less hassle. Easy to change at home, but you'll need to bled the brake(s) afterwards.

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That was my thinking. Gonna jack it up tomorrow and see if the wheel turns freely. I'm assuming this is a good way to see if the caliper is seized. Will need new pads as well I suppose as the right side at least will be cooked. Hope I can get away with leaving the discs.

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Depends on how bad it is I guess. I got away without needing new disks/pads, but I caught mine early, and it never started to smell of burning, it would just pulse sometimes in traffic...

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It could also be the wheel bearings so,it's sensible to check before you buy anything. Jack up that corner and grip the wheel at top and bottom and try to rock it, then repeat when holding it side to side. The movement should be minimal/ non existant. If it's significant and happens in both positions then bearings are shot, if it only happens in one position then it's most likely other suspension components but that's unlikely in your case.

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Thanks guys. Don't think it's the bearing, as I can't hear any noise from them. I realise that's not always the case though. I will check tomorrow and post my findings. Thanks again.

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25 minute drive home on back roads and I could feel the heat coming off the front offside wheel from 3 feet away.

Also, noted resistance to free rolling towards the end of the journey.

Will find out more tomorrow.

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I see. But if I'm clamping the hose, this'll stop any fluid from escaping anyway won't it?

What mean is, if in clamp it, will I be able to just bleed that (the new) caliper or will I need to bleed the whole system, starting from the furthest caliper from the master cylinder and working my way towards it?

Also, are e46's known for blowing the master cylinders if the brake pedal is fully depressed?

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Unless you know its been done in the last couple of years or so i'd bleed the system anyway.

Brake fluid is pretty cheap and you wont need very much to do the whole lot

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I found using a vacuum bleeder much better than a pressure bleeder when I did my mkiv supra.

I also upgraded the brake fluid to DOT 5.1 Motul RBF 600, for just normal rd use DOT 4 is fine

Just don't use a Silicon based fluid which is DOT 5

Edited by dunk1
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Cheers. I've read a lot of good reviews for the Gunnson pressure bleeders with our cars and they have one in stock in my local so think I'll get that. Thanks for the heads up on the brake fluid :)

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I use a Gunnson pressure bleeder. Works a charm.

Haven't read a bad reviews yet. Bit expensive but worth it if it works and makes the job easier on my own.

Any tips on using it? Do you open and close one nipple at a time as in normal bleeding or just open them all up at the same time?

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The bonus with a vacuum bleeder is you don't fit anything to the master cylinder reservoir so its simpler to

top it up as you just leave the cap off and top up as required

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