D
David Waite
Does anybody know about the reliability of the cross country ?
David Waite said:Does anybody know about the reliability of the cross country ?
Peter said:Pre 2001 the 70 was just an improved 850, post 2001 the 70 is a redesign based
on S60.
Cheers, Peter.
: If one is buying a V70xc from that era, how do we accurately
: recognise the "2001" model with the improvements and avoid it's
: predecessor??
:
: Thanks,
:
: Jim
:
: | > V70XC. The 2001 was a big improvement.
:
Beginning with the 2003 Model Year, the Cross Country a/k/a the XC70 has
the Haldex AWD which is much better (reliability-wise) than the previously
used AWD with viscous coupling. Search Google Groups for prior discussions
in this NG regarding Haldex.
Stephen M. Henning said:The Haldex is strictly a performance enhancement. There were no
reliability issues with the viscous coupling. In fact it is one of the
most reliable systems in existance since there are no valves or switches
to go bad. It has a long history of reliability. The Haldex system is
newer and unproven.
Haldex historically made automatic brake adjustors. It has expanded
into other hydraulic fields, but the Haldex AWD system is a new field
for it and is relatively unproven.
Mike F said:There is a reliability issue with the viscous coupling in the sense that
if tires sizes are too different (this includes one new tire and 3 half
worn) front to rear, then the driveshaft is loaded. After a short
period of time, this overheats the oil in the angle gear, which causes
the angle gear to fail. This includes use of the spare tire. The
Haldex system can be (and is) programmed to ignore this kind of tire
size differential.
snip
There is a reliability issue with the viscous coupling in the sense that
if tires sizes are too different (this includes one new tire and 3 half
worn) front to rear, then the driveshaft is loaded. After a short
period of time, this overheats the oil in the angle gear, which causes
the angle gear to fail. This includes use of the spare tire. The
Haldex system can be (and is) programmed to ignore this kind of tire
size differential.
I've been told, even if one does not have any expense for repairs to the
viscous coupling AWD, that buying tires four at a time so as to avoid any
problem with the viscous coupling "hurts" especially when some of the tires
have a lot of tread left.