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Home > Technical > Burning smell |
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Pegleg Member Since: 15 Apr 2010 Location: Deep in mid Wales Posts: 3114 |
Hello Cannonball,
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9th Jan 2013 8:54 pm |
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JST Member Since: 01 Nov 2011 Location: Lizant Posts: 1098 |
Most likely a rear calliper stuck. If it is, and the disc is "blue-ed" and glazed (i.e.overheated) I would hold out for new discs and pads rather than just feeing off the stuck calliper. John
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9th Jan 2013 8:55 pm |
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wizking Member Since: 18 Mar 2010 Location: Around Posts: 1848 |
You do get a strong smell if the DPF is going through its clean cycle. |
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9th Jan 2013 9:33 pm |
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JST Member Since: 01 Nov 2011 Location: Lizant Posts: 1098 |
Maybe, but I would worry about the O/S rear wheel area getting hot as per OP. John
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9th Jan 2013 9:42 pm |
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dunkley201 Member Since: 09 Jul 2011 Location: Lincolnshire Posts: 2739 |
I can confirm the wheel gets REALLY hot when a caliper seizes. My LHF caliper siezed (dust seal split) and caused weird shuddering, etc. Caliper was replaced plus BOTH discs and pads. Job sorted. 10MY (Sept 09) TD4 HSE Auto in Stornoway Grey (Now Gone)
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9th Jan 2013 10:57 pm |
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shilen Member Since: 29 Feb 2008 Location: In the Middle Posts: 1774 |
I think thats whats causing my problem with my MY11 SD4 - im getting rear wheel judder when pulling away and it clears after a couple of seconds, I went to the dealer last week and sods law it didnt do it so have booked it in in 3 weeks time to be investigated unless it gets more frequent and i will chance going in to see them again, would discs and pads be covered under warranty if the calliper is replaced for being at fault? Now - 2017 BMW X3 M Sport Carbon Black
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10th Jan 2013 11:14 am |
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Cannonball Member Since: 25 Nov 2010 Location: Planet Earth, just visiting Posts: 31 |
Thanks to all for your excellent input, I'll let you know how I get on at the service. |
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10th Jan 2013 11:20 am |
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JST Member Since: 01 Nov 2011 Location: Lizant Posts: 1098 |
If the calliper has resulted in screwed disc and pads I would of course expect the whole lot to be replaced. Although they are "service" parts, this is not a case of reasonable wear and tear. John
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10th Jan 2013 11:44 am |
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Cannonball Member Since: 25 Nov 2010 Location: Planet Earth, just visiting Posts: 31 |
..........checked out today at 2nd annual service, nothing found, no damage to discs or pads, mystery unresolved! Thanks to all. |
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25th Jan 2013 5:36 pm |
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wizking Member Since: 18 Mar 2010 Location: Around Posts: 1848 |
Not saying it is, but the smell I get sometimes I also thought was wheel/ brake pad based. But I'm sure it is the DPF cleaning and unfinished. Get it after doing shorter trips, but always disappears after a longer run. |
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25th Jan 2013 6:03 pm |
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