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I'll also chime in to say that something seems to be wrong. I use winter tires and have driven up mountains in thick snow of various types and my AWD V70 does a decent job. The only problematic issue being that it's a really heavy car, so it can slide around a bit if you're not careful, but it'll move fast. I can imagine that improper tires would have almost no traction on certain types of snow, which might cause the traction control to overreact, but haven't tested that personally. Turning off DSTC in the menu, as many have already said, does not completely switch off traction control (you can't do that in this car), it just makes the tail end a bit more playful :D

On a side note, cars often rattle quite a lot when driving on snow or ice, as it makes the road much more bumpy. It's a bit like driving on a dirt/gravel track. That's different from the "clicking" that you get from the ABS and traction control when they're in action - I wouldn't really call that a rattle...
 
Volvo's DTSC system can be turned off however anti-skid cannot.

As far as tires, they have everything to do with DTSC going crazy. If your not getting grip, your spinning and causing the anti-skid to activate an giving you the "rattles". Get a set of dedicated winters, it's much safer and you can run a taller sidewall in the winter for those lovely potholes.

A car in general has very little to do with whats good in the snow, I've driven Fwd Hondas and Rwd's Porsches in the snow with proper winters and never had an issue. Ground clearance does help but unless it's over 7 or so inches it really won't make a difference.

Think of it like this, you don't walk on to an ice rink with shoes on, why go out on cold, brittle, iced up/slick surfaces unless they really have teeth to grab. The studless winters are amazing, these compounds are designed for the snow and cold in general. I used to think AWD was the answer but after using winter tires I'll never go back.
 
Discussion starter · #23 ·
the Jag XJ AWD with oem tires/29,000 miles did much-much better on that snow day than the XC70 t6 with oem tires/24,000 miles. These are the (very surprising to me ) facts.
 
Discussion starter · #25 ·
IF they are Pirelli Scorpion Verde they didn't have great snow traction even when they were new, and they don't have great treadwear rating either:
https://www.tirerack.com/tires/tires.jsp?tireMake=Pirelli&tireModel=Scorpion+Verde+All+Season

As I've asked before if you could just send some data about your tires (brand, model, tread depth, maybe a pic) we could all discuss this intelligently.
As I mentioned above, yes, its the OEM Pirelli scorpion verde that came with the car. Ill take a picture later.
 
Discussion starter · #27 ·
The tires have sufficient thread life left on them. One note, the car was first purchased and registered Nov. 2012, so these tires are well over 6 years old at this point.
 
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