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S80 '06-'16 / V70 & XC70 '07-'16 General Forum for the P3-platform S80 and 70-series models |
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Noisy belt when starting...?Views : 446 Replies : 3Users Viewing This Thread : |
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Feb 16th, 2020, 17:34 | #1 |
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Last Online: Jul 2nd, 2023 10:51
Join Date: Jul 2017
Location: Tywyn
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Noisy belt when starting...?
Hello everyone
Just some quick advise please. When starting the car from cold, with air con on, there is a squeal from a belt. Turning the air con off stops the squeal. The car had a new air con compressor, belt and re gas in April 2018 at 139k. Car is now on 149k. Any ideas..? Will take it to the garage when time allows in a few weeks time, but surely it won’t need a new compressor again, or could it be something else? Thanks :-)
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2008 Volvo V70 D5 SE - 149,000 miles Sold - 2004 Volvo V70 D5 SE - 155,000 miles |
Feb 16th, 2020, 21:27 | #2 |
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Last Online: Jul 4th, 2023 12:54
Join Date: Feb 2013
Location: oxford
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I'd check the aux belt and tensioner. I can't see why the A/C would cause the aux belt or it's tensioner to squeak, as it operates off its own stretch belt, but it's still worth a check as they commonly fail with severe consequences.
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Feb 17th, 2020, 18:27 | #3 | |
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Last Online: Jul 2nd, 2023 10:51
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Quote:
It was replaced in 2015 at 120k along with cambelt, water pump etc. Would it need changing again already?
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2008 Volvo V70 D5 SE - 149,000 miles Sold - 2004 Volvo V70 D5 SE - 155,000 miles |
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Feb 17th, 2020, 22:13 | #4 |
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Last Online: Today 17:20
Join Date: Apr 2019
Location: Manchester
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There's two aux belts... The main aux belt that powers your alternator etc that is held in place with the tensioner. The other belt is only for your air conditioning & doesn't have a tensioner.
The recommended aux belt replacement (Both belts) is every 5 years/54,000 miles (Whichever comes first). You had your aux belt & tensioner replaced in 2015 & another belt replaced in 2018. Which belt was replaced in 2018, presumably just the a/c one? Normally, the tensioner is only replaced as part of the timing belt service (10 years or 108k). However, I think its best to change the tensioner too with each set of aux belts (Two belts) every 5 years/54,000 miles for peace of mind, especially knowing its a weak point on these engines. The tensioner itself is a £60 part give or take, so replacing that every five years in addition to both belts isn't too much more of an expense. Bring it to the garage & get the squeaking noise checked out as soon as possible... If one of these belts fail, it can cause serious engine damage that could cost a fortune in repairs. If the garage say the noise is coming from the aux belt or a/c belt, then get both replaced with a new tensioner for peace of mind... That would be my suggestion.
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2007 S80 2.4 D5 - 110,000 miles Last edited by Kev0607; Feb 17th, 2020 at 22:31. |
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