Quote:
Originally Posted by XC90Mk1
I see you have posted on the 06 model for sale.
Regarding the 4x4 early ones used an angle bevel gear.
The later models use a Haldex 4x4 which should be ok if serviced.
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You're conflating two completely different components. All 4wd XC90s make use of a front "angle gear" (or transfer box) and all 4wd XC90s use a Halex unit to control torque delivery to the rear wheels (gen 3 early models, gen 4 on later ones).
There's another set of bevel gears to consider too, in the rear final drive (or rear diff, if you prefer).
All these things can and do wear and some can be expensive if they need to be replaced. That's clearly more likely as they approach 16 years of age.
On MPG, having owned both a 2003 V70 D5 and a 54 plate XC90 D5, I can say with certainty that you're not going to be seeing anything like the fuel economy. My V70 could do 50+ mpg on a run , whereas my XC90 could just about manage mid 30's.