[Rogerbu]

I recently had a TPM sensor failure, among the many features that the computer crippled was 4 wheel drive.

I asked the dealer when did the car change from 2 wheel to 4 wheel drive, he waffled and clearly didn't know.

Can anyone explain when 2 wheel drive, 4 wheel drive and a blended 2/4 wheel drive are used?

Thanks

[Peter_R]

Originally Posted by Rogerbu

I recently had a TPM sensor failure, among the many features that the computer crippled was 4 wheel drive.

I asked the dealer when did the car change from 2 wheel to 4 wheel drive, he waffled and clearly didn't know.

Can anyone explain when 2 wheel drive, 4 wheel drive and a blended 2/4 wheel drive are used?

Thanks

To clarify because you are driving in the the UK...

The standard (entry level) X3 (2.0 and 3.0 litre diesel engines) are all wheel drive normally 40:60 (front rear) drive characteristics that is dynamic under differing road conditions, say ice and snow. There was one exception that was a rear wheel drive only and was a 1.8d new entry version that came in with the facelift but was short lived and was discontinued in 2015, see....

http://www.autoexpress.co.uk/bmw/x3


Full specifications for all the X3 versions found here...

https://en.wikipedia.org/wiki/BMW_X3

Road conditions dictate when the different drive percentages are applied to the front/drive wheels, but 4 wheel drive is default and it never changes to 2 wheel drive completely on the 4 wheel drive version.

There are some extreme cases (momentarily) where the 40:60 ratio is radically changed such as when the there is no traction on one of the axles.

The following youtube video clearly shows how the system works

Edited....

BMW xDrive Technology Explained in the following video

[RooiValk_ZA]

Good day,

this is my first post on this forum. i am humbled to be part of this awesome forum.

i recently bought a 2013 BMW X3 2.8i Xdrive A/T and it has all terrain tires on (225/60/R17 Yokohama Geolander A/T-s). the previous owner has driven the vehicle since his first tire change on all terrain tires. this is the 2nd set. it has about 9000km's on (5592miles)

my question is, i read somewhere that BMW does not recommend you rotate your tires on the vehicle, but since this is not run flats, does it still apply for A/T tires? i saw the tires at the front is worn more on the side (due to turning and also the profile is higher) and i feel that i must rotate at least every 10000km's (5600miles)

is there anyone on this forum who drives with the same kind of tires on your vehicle and if so, what is your advice? any other advice will also be appreciated.

P.S - i live in south africa and our roads are not so good, therefor it just makes financial sense and also from a comfort aspect, to have A/T's on our vehicles.

thank you.

[RooiValk_ZA]

the vehicle has got 10000km's on (62137miles)

[poiuytre111]

Surely the OP is describing what he believes to be a fault condition arising on a 4wd X3. I have no personal experience from which to comment but am aware that the transmission can indeed shift power between front/rear/all as conditions dictate so I can see it removing drive from a pair of wheels if the TPS suggests that the wheel circumferences are unbalanced, to avoid stress that might cause failure.

[Kugaman1]

I will be putting winter wheels on my 2016 x3 in a few months.
I dont have tpms valves in any of them.
I know I will get an error on the dash.
I wont be very happy if it disables the 4wd......cant see any logical reason why it would.