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XC90 '02–'15 General Forum for the P2-platform XC90 model |
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One side heating ?Views : 1554 Replies : 28Users Viewing This Thread : |
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Nov 5th, 2021, 00:14 | #1 |
Master Member
Last Online: Mar 20th, 2024 16:44
Join Date: Nov 2004
Location: Manchester
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One side heating ?
With the cold snap today we had the heating on in the 2006 XC90. But only the drivers side was blowing warmer air - the passenger side was blowing cold air.
All switches etc were lit and working as expected to blow warm - but no warm air for the passenger :-( Any suggestions where to look first? Would a code read help ? Thanks for any input - John |
Nov 5th, 2021, 08:53 | #2 |
Premier Member
Last Online: Yesterday 18:25
Join Date: Jan 2010
Location: Louth
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Hello John.
I would say yes to codes, must be through Vida or a car specific reader though, generic readers won't find the climate control units. I don't know specifically for the XC90 however on the V70 P2 which is a very close relation, it's usually a problem with stuck flaps on the climate unit that can be motor or position sensor failure. |
Nov 5th, 2021, 10:02 | #3 |
Petrolhead+Lots of Diesel
Last Online: Today 09:53
Join Date: Aug 2008
Location: Glasgow
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Put money on it being the AQS sensor in the scuttle air intake. Exactly the symptoms I had, about £95 from Volvo.
PIA to get to it as the wiper arms and the scuttle needs to be removed, then a bit of contortion where you really cant see what you are doing to twist to remove the sensor. Once replaced heating was back to normal. I would have thought the AQS would have thrown a fault code but may be wrong. Hope it helps
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BMW X3 Msport MHEV 2020MY & VW Beetle Design 1.2Tsi DSG 2014MY Previous XC90 D5 SELux Geartronic 2009MY Last edited by TruckbusUK; Nov 5th, 2021 at 10:40. |
Nov 5th, 2021, 11:42 | #4 |
Master Member
Last Online: Mar 20th, 2024 16:44
Join Date: Nov 2004
Location: Manchester
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Found a YT video on replacing the AQS - does look fiddly - albeit straigtforward. Might be good to get a code read to see if it could be something else.
How easy is removing the scuttle to get at it - I have never done that ? |
Nov 5th, 2021, 11:53 | #5 | |
Petrolhead+Lots of Diesel
Last Online: Today 09:53
Join Date: Aug 2008
Location: Glasgow
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Quote:
The AQS removal, I ended up getting my daughter with small hands rather than my shovels to twist it out.
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BMW X3 Msport MHEV 2020MY & VW Beetle Design 1.2Tsi DSG 2014MY Previous XC90 D5 SELux Geartronic 2009MY Last edited by TruckbusUK; Nov 5th, 2021 at 11:55. |
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Nov 5th, 2021, 14:18 | #6 |
Master Member
Last Online: Mar 20th, 2024 16:44
Join Date: Nov 2004
Location: Manchester
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Further digging finds the thread below - where Clan and others state....
"The AQS will not be the cause but likely to be i wouldn't know about that , but his first problem with blowing too cold one side has nothing to do with the AQS just about all the cars fitted with them over 8 years old have the AQS failed fault code and contunue to work properly . The fault is probably a faulty driver's side air temperature flap motor" Any thoughts on that chaps? https://www.volvoforums.org.uk/showthread.php?t=246271 |
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