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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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AwdViews : 413 Replies : 6Users Viewing This Thread : |
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#1 |
Senior Member
Last Online: Today 19:30
Join Date: Mar 2021
Location: Gravesend
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Someone on one of the FB groups hs just asked a very simple, but very good question. I think the answer is yes, but not 100%.
Q. (this is for a P2 xc70, but still applies to the P3) . Does AWD work in reverse? Hmmmmmm. |
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#2 |
Bungling Amateur
Last Online: Today 17:57
Join Date: Aug 2014
Location: Beverley, East Yorks
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Yes it does...
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2011 XC90 D5 Executive 2003 C70 T5 GT 2012 Ford Ranger XL SC 1977 Triumph Spitfire 1500 1976 Massey Ferguson 135 |
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#5 |
Bungling Amateur
Last Online: Today 17:57
Join Date: Aug 2014
Location: Beverley, East Yorks
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Just a bit more info on this…. Apart from the signal from the TCM, the AWD system doesn’t actually detect whether the car is in reverse, the wheel speed sensors can’t tell and the readings are not affected by the direction of travel.
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2011 XC90 D5 Executive 2003 C70 T5 GT 2012 Ford Ranger XL SC 1977 Triumph Spitfire 1500 1976 Massey Ferguson 135 |
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#6 |
Premier Member
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Even the oldest systems worked in both directions, since for them, the hydraulic pump was driven by a speed difference between front and rear wheels. Now the pump is electric, so it makes even less of a difference.
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#7 |
Premier Member
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Even the oldest systems worked in both directions, since for them, the hydraulic pump was driven by a speed difference between front and rear wheels. Now the pump is electric, so it makes even less of a difference.
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