macd2401
Established Member
I think the 4mm refers to the acceptable depth for use in snow.Not me !.
We have covered 12,500 miles and the fronts still have plenty of life in them at the moment.
VW suggest that new tyres should be fitted when they down to 4mm !.
A new tyre only has between 7 and 7.5mm on the tread when new for gods sake !.
Another money spinner.
I fully understand that tyres are the last thing between you and the road, but come on, replacement at 4.0mm is just madness!.
On a lot of the FWD drive cars I have owned, front replaces are usually fitted at around the 20,000 mile mark ish.
VW also recommend doing a wheel front to back rotation every 5,000 miles.
I do support this idea because it evens out the tyre wear, but means that all four tyres are likely to be replaced at the same time.
More expensive in the long term, but I have found that tyres left on the rear for a long time, results in the side wall cracking due to UV and age etc.
Therefore these tyres need replacing due to the hair line cracks, but the tyre still has usable tread left.
This why I prefer rotation myself.
It was something that could be done at home on my previous VW.
But I think I am right in saying that you can not do this on the ZS because it remembers it position on the car.
It must be the TPMS system they use ?.
Strange that the front and rear tyre pressure are the same, but the car knows if you have done a wheel rotation ????.
Question :- If when you replace your front tyres, will the TPMS system flag up a warning on the dash that needs resetting at the dealers ?.
Or if you refit the wheel back into its same location, will it be fine ???.
My guess is it would because it has been returned to the same location,
I think that is a crazy way for the system to work myself.
Have had a few sets of all weather tyres that have 2 sets of TWI, one at 4mm, and another at 2mm. To be honest, I don't feel comfortable in running tyres to the limit. I usually don't go below 3mm, and if it's getting close to that come October/November time, I'll replace them early.
When my old Golf wore through a set of fronts, the rears would get switched forward, and the new ones went on the back. Since that was happening basically once a year, it wasn't a massive issue.