2002 XC70 AWD problems??

mrc1501 · Aug 6th, 2011, 03:11

After selling my fwd V70R, I have been offered an XC at much cheapness from a work collegue.

I am aware of AWD problems on the Classic models, but have no experience of the AWD system on the phase 2 series. Is the AWD system the same as the Classic, or is it a different system. What known problems are there (if any) on this model.

Many thanks

Gazdok · Aug 15th, 2011, 12:01

The first models had the same AWD as the previous "classic" until 2002 / 2003, which was changed to Haldex Gen 2 and then Gen 3 in 2006.
Make sure you have 4 driven wheels and there are no warnings in the dashboard / on VIDA/OBD II and no noises.

If you have a ramp or can lift the car off the ground with all 4 wheels check they are all turning.

AWD can be expensive if you let Volvo sort it out.

mrc1501 · Aug 15th, 2011, 13:55

Quote:

Originally Posted by Gazdok

The first models had the same AWD as the previous "classic" until 2002 / 2003, which was changed to Haldex Gen 2

How would I know if I had the Haldex Gen 2. Is there an easy way to check this. What would I look for when inspecting the car. The car that I have been offered is on an 02 plate.

mrc1501 · Mar 23rd, 2012, 02:11

Crawled under the rear of the car today to measure my rear anti roll bar diameter, and noticed, just forwards of the rear axle, where the central prop shaft meets something, that this something had some oil on the bottom of it. What is this something? Are there any schematics that show the AWD system. Is this the dreaded angle gearbox, or the transfer gearbox. Any piccies of either of these so I can compare?

Jim Haseltine · Apr 10th, 2012, 13:14

On non-Haldex, the part between the prop and the rear diff is the viscous coupling. The angle gear is at the front of the prop hidden up above the subframe.

mrc1501 · Apr 14th, 2012, 16:09

Quote:

Originally Posted by Jim Haseltine

On non-Haldex, the part between the prop and the rear diff is the viscous coupling.

Is this something that contains oil (like a gearbox). If not, then why would there be any oil in this area

gambit49 · Apr 14th, 2012, 18:37

volvo's awd has some problem it usually break shaft and awd's ecu in Turkey

TiredGeek · Apr 14th, 2012, 19:46

Do a google image search for "Volvo Haldex".
There's a few pictures of in situ Haldex units, so if that's what your's looks like then it's a Haldex you have, if not it's a viscous

Googling "Volvo viscous" didn't bring up any pictures of the viscous coupling in situ but a few diagrams so you should get a good idea what you're looking at.

If the oil leak isn't significant, as in dripping, then I wouldn't worry too much....

The angle gear is at the other end of the prop shaft, it's the bit at the back of the gearbox where the prop fits.

Aug 6th, 2011, 03:11	#1
mrc1501 Master Member Last Online: Feb 7th, 2024 20:51 Join Date: Jun 2007 Location: Chorley Lancashire	2002 XC70 AWD problems?? After selling my fwd V70R, I have been offered an XC at much cheapness from a work collegue. I am aware of AWD problems on the Classic models, but have no experience of the AWD system on the phase 2 series. Is the AWD system the same as the Classic, or is it a different system. What known problems are there (if any) on this model. Many thanks __________________ My previous car. Happy days...... V70R 1997 Gone V70 XC 2.4 T AWD 2002 Gone 2013 XC60 R design Lux Nav 2.4 D4 AWD Polestar optimised in Rebel Blue Gone

Mar 23rd, 2012, 02:11	#4
mrc1501 Master Member Last Online: Feb 7th, 2024 20:51 Join Date: Jun 2007 Location: Chorley Lancashire	Crawled under the rear of the car today to measure my rear anti roll bar diameter, and noticed, just forwards of the rear axle, where the central prop shaft meets something, that this something had some oil on the bottom of it. What is this something? Are there any schematics that show the AWD system. Is this the dreaded angle gearbox, or the transfer gearbox. Any piccies of either of these so I can compare? __________________ My previous car. Happy days...... V70R 1997 Gone V70 XC 2.4 T AWD 2002 Gone 2013 XC60 R design Lux Nav 2.4 D4 AWD Polestar optimised in Rebel Blue Gone

Apr 14th, 2012, 19:46	#8
TiredGeek Master Member Last Online: Sep 29th, 2022 20:46 Join Date: May 2007 Location: Leeds	Do a google image search for "Volvo Haldex". There's a few pictures of in situ Haldex units, so if that's what your's looks like then it's a Haldex you have, if not it's a viscous Googling "Volvo viscous" didn't bring up any pictures of the viscous coupling in situ but a few diagrams so you should get a good idea what you're looking at. If the oil leak isn't significant, as in dripping, then I wouldn't worry too much.... The angle gear is at the other end of the prop shaft, it's the bit at the back of the gearbox where the prop fits. __________________ Defected to BMW. 335d xdrive.

Aug 15th, 2011, 12:01	#2
Gazdok Master Member Last Online: Dec 31st, 2023 11:17 Join Date: Mar 2009 Location: Wigston	The first models had the same AWD as the previous "classic" until 2002 / 2003, which was changed to Haldex Gen 2 and then Gen 3 in 2006. Make sure you have 4 driven wheels and there are no warnings in the dashboard / on VIDA/OBD II and no noises. If you have a ramp or can lift the car off the ground with all 4 wheels check they are all turning. AWD can be expensive if you let Volvo sort it out.

Apr 10th, 2012, 13:14	#5
Jim Haseltine Member Last Online: Jan 29th, 2024 20:42 Join Date: May 2010 Location: Rawcliffe, York	On non-Haldex, the part between the prop and the rear diff is the viscous coupling. The angle gear is at the front of the prop hidden up above the subframe.

Apr 14th, 2012, 18:37	#7
gambit49 Junior Member Last Online: Feb 14th, 2015 13:08 Join Date: Mar 2012 Location: ankara	volvo's awd has some problem it usually break shaft and awd's ecu in Turkey

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