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S80 '98-'06 / S60 '00-'09 / V70 & XC70 '00-'07 General Forum for the P2-platform S60 / V70 / XC70 / S80 models |
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Brake pedal vibration on clutch depressionViews : 312 Replies : 2Users Viewing This Thread : |
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Sep 12th, 2022, 13:53 | #1 |
Junior Member
Last Online: Oct 13th, 2023 16:02
Join Date: Sep 2020
Location: Workington
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Brake pedal vibration on clutch depression
Hi all, it’s been a while. I’ve an issue following brake replacement. (Front disks and pads) on my 2005 D5 S80.
Randomly I get a ‘farting’ noise / vibration through the brake pedal. I can’t decide if it’s the pads rattling or air in the hydraulics somewhere. It’s normally on approach to a roundabout or junction when slowing to a stop. When I try to reproduce, it seems to happen more when the clutch is depressed, (maybe more pronounced near the bottom of the travel?) I’ve read that crappy pads may cause vibration as the dust gets I between the pads and disks but not sure why the clutch would make this more frequent. I’ve bled the front brakes and clutch line but that made no difference and I’m not getting the clutch pedal stuck to the floor thing as if there was air in there. I did wind back one of the brake pistons with the reservoir cap on 🤦*♂️, could I have I popped a seal somewhere? |
Sep 12th, 2022, 15:13 | #2 | |
Extrahumanestrial
Last Online: Feb 13th, 2023 19:02
Join Date: Jun 2022
Location: Budapest
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Quote:
If it's a graunch it's normal and you'll get it more and more after washing the car and letting it sit for a day. However! we must go in deeper, the cap mishap won't be it I've done that myself before without any comeback. So with that I'd check the disk screws are still in properly and also that the wheel nuts are fully tightened. After that IF you're confident the brakes are working properly and it's just the vibes and Radio 4 Wheels that is bugging you I would at night on a quiet motorway get up to 70, check my mirrors to ensure there's nobody around and brake hard without making the car go into a skid or veer off course, repeat this 4 or 5 times and if you have an out of true disc it should straighten it up for you. DON'T DO IT @ BUSY TIMES!, best of luck. |
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Sep 14th, 2022, 19:11 | #3 |
Junior Member
Last Online: Oct 13th, 2023 16:02
Join Date: Sep 2020
Location: Workington
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