V70 AWD and matching tyres....

V70 AWD and matching tyres....

Author
Discussion

wiliferus

Original Poster:

4,064 posts

199 months

Tuesday 19th February 2019
quotequote all
Recently acquired a V70 D5 AWD. Came on 4 matching Michelin Primacy 3 tyres with about 5mm of tread.

As is the way within a week of ownership I’ve picked up a puncture on the RNS. The puncture is very close to the edge and thus not repairable.

I note from the handbook it says about matching tyres MUST be used so as to not cause damage to the AWD system.

Obvs a new matching Primacy will have about 7mm of tread which is 2mm over the over 3. I also don’t want to go down the route of a part worn.

Will I be ok to just put two new ones on the rear, or is the AWD system so sensitive it will in theory want 4 new tyres??? Seems a bit bonkers if the latter.

wiliferus

Original Poster:

4,064 posts

199 months

Tuesday 10th December 2019
quotequote all
I resolved this with two new rear tyres. Seems to be fine.

But on what you’ve said, I would say it could be significant? 3 extra rotations per km.
My commute is 35 miles, or 56km. So each journey to work there would be nearly 170 more rotations. Which is over 3000 extra rotations a month. Is that not enough to ‘wind up’ the transmission?

wiliferus

Original Poster:

4,064 posts

199 months

Thursday 12th December 2019
quotequote all
Good explanation, makes sense! Thank you!