Appreciate views - Tyres!

[GE90]

Hi All

So I’ve been keeping an eye on the outside edge of the front tyres on our Q4. I decided the time had come to replace the fronts, as while the depth across both is 4mm, the outside on this one is bald, albeit no cord showing. Do no problem, they are getting replaced ASAP on safety grounds.

However, on checking I’ve noticed this on the inside edge on one of the rears! Looks like it’s a different type of wear, but I guess I’m looking at a full set now?

I’ll be getting full alignment checked and adjusted, again!

Cheers.

FRONT



REAR

[E-bmw]

Looks like it may have been flat at some point.

[John D.]

Kwikfit said there was no issue with this. Months later BMW didn't replace it or comment on a service. Was my partners company car X3. The tread blocks had completely disappeared on the outside edge by the time she gave it back.

[E-bmw]

Still likely actually legal though from a quick glance.

[Pica-Pica]

Across the centre 3/4 of tyre width, it has to a minimum of 1.6mm deep in the PRIMARY grooves (that is, where the tread wear indicators are). Outside of the centre 3/4 it used to require ‘visible tread’,:that no longer is the case according to the MOT inspection manual, quoted as follows:

“Either side of the central three-quarters of the tyre can be devoid of tread (‘bald’).

For me, I would change at 3mm tread depth if winter is approaching.

[Matt_T]

See below thread. If you are regularly driving with 4 people on board, or with a full load, you need to be using the upper pressure range (maybe 38-40 psi?) or else the edges will wear. Maybe could be the reason?

https://www.pistonheads.com/gassing/topic.asp?h=0&...

[wyson]

I don’t see the issue here?

Its really common the grooves on the outside edge in particular are shallow so the blocks don’t move as much, for better handling.

Also looks like a long term underinflation issue as well, as the poster above stated. Have you been checking your tyre pressures once a month on an accurate tool? ie not garage forecourt air dispenser meter.

Edited by wyson on Friday 7th February 11:17

[7 5 7]

John D. said:

Kwikfit said there was no issue with this. Months later BMW didn't replace it or comment on a service. Was my partners company car X3. The tread blocks had completely disappeared on the outside edge by the time she gave it back.

Quite normal that with BMW's in my experience they are setup like that from standard, toe in a little - when I had my 3 series E90 on a hunter 4 wheel few years back, the spec sheet, had the specs set to that.

[John D.]

7 5 7 said:

Quite normal that with BMW's in my experience they are setup like that from standard, toe in a little - when I had my 3 series E90 on a hunter 4 wheel few years back, the spec sheet, had the specs set to that.

Yeah that was the feedback I got on here at the time. Doesn't seem right to have a tyre worn like that.

[GE90]

Thanks everyone.

Tyre pressure all round were the same, and a few PSI below the low load pressure.