crews control
Member Since: 18 Mar 2007
Location: Dorset
Posts: 5011
  
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I’ve recently had the belts done on my MY11 D4, and while it was in they also changed the front suspension hydra bushes as apparently there was evidence of quite a bit of play.
Since I’ve had the car back, I’ve noticed a strange issue under braking…. it feels just like I’ve got warped discs. That thumping and shake through the steering is quite annoying, but here’s the thing… it only does it sometimes ???
There doesn’t seem to be a pattern, it doesn’t vibrate if I’m only braking gently, but sometimes it’s also smooth under heavy braking too. I can’t really predict when it’s going to shake like warped discs and when it isn’t.
Anyone have an idea what this might be before I go back to the dealer stamp my feet and look like an idiot!
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 18th Feb 2016 9:58 am |
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al cope
Member Since: 08 Nov 2005
Location: Oldbury, WM
Posts: 10329
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if its warped discs, then its usually fairly consistant. One mine it would do it every time under gentle braking from high speed. If I pressed the brake pedal harder it would stop shaking the steering wheel as the discs got grabbed harder.
yours sounds like it might be something else
Al Volvo XC90 B5 Plus Dark
Gone - MY18 D5 HSE - Corris on 22's with Black Pack
Now gone - MY16 D4 SE Tech, Loire Blue, Almond Leather, Privacy, plus some other goodies.
Old - MY12 D4 SDV6 XS Auto - Ipanema Sand with Almond Leather - Plus other niceties, and D4.com sticker
Older - D3 TDV6 XS Auto - Lugano Teal with Almond Leather, 20" Stormers, Shiny Tailpipes, DVD/TV - and obligatory D3 sticker
Ancient - D3 TDV6 S - Tonga with Ebony, 20" Stormers, satnav & DVD
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| 18th Feb 2016 10:07 am |
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Discogaz
Member Since: 17 Mar 2014
Location: Bracknell
Posts: 1399
 
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Caliper slider sticking.
Remove caliper, clean slider and grease lightly.
Reassemble and should be sorted.
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| 18th Feb 2016 11:13 am |
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Jarvis
Member Since: 16 Dec 2009
Location: West Berkshire
Posts: 279
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Are the wheel nuts tight?
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| 18th Feb 2016 11:28 am |
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CJB
Member Since: 24 Dec 2005
Location: Beds, England
Posts: 12
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Don't think it's warped discs.
I had that but it was pretty consistent and not so bad CJB
16 D4 HSE Auto
13 D4 XS Auto - gone
08 D3 HSE Auto Buckingham Blue - gone
04 D3 SE Blue - gone
82 Series III Petrol re-build - nearly done!
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| 18th Feb 2016 11:55 am |
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crews control
Member Since: 18 Mar 2007
Location: Dorset
Posts: 5011
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I'll check my calliper and nuts.
Thank you. 
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| 18th Feb 2016 3:25 pm |
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