Don't kick me another tire query post

[haigha]

Originally Posted by Serb404

mines a 2004 e53 and no xdrive, I have to push the DSC button to activate 4 wheel drive unless I'm misinterpreting it?

There's no xDrive badge on e53 models, but all 2004+ have it, as far as I know. It's available as soon as you turn on the ignition.

As far as DSC on an X5, from BMW USA:

Activated at the push of a button, Dynamic Stability Controls traction mode (DTC) increases tolerance for wheel slip and also facilitates initial acceleration on loose surfaces such as sand, gravel or snow.

[wpoll]

Originally Posted by Serb404

mines a 2004 e53 and no xdrive, I have to push the DSC button to activate 4 wheel drive unless I'm misinterpreting it?

Pretty odd to have an '04 with no xDrive - as already stated, xDrive is fitted to all e53 X5s from build date Sept 2003 (so MY2004).

Which "face" (grill, headlights etc.) is yours? (Years shown are build years...)



The LCI (facelift) version at the bottom has xDrive.

There is no button to activate "4-wheel drive". All e53 X5s are full-time all-wheel drive. From 09/03, the xDrive system adds an automatically variable ratio drive to front/rear axles - previous versions where a fixed split/ratio, 32%/68% front/back.

Dynamic Stability Control (DSC) was also on all models and is on all the time, unless de-activated via the DSC console button.

[omodos]

Shall I risk it and whack on a different pair of shoes up front?

anyways this clarifies a bit more re xdrive...

https://www.classicdriver.com/en/art...ok-bmw-x5-2004

[omodos]

Originally Posted by tempest411

I don't how there could be a problem. There's a differential in the transfer case to account for differences in axle rotation between front and rear. While the later cars may have some automatic mechanism to lock this differential when gross slippage occurs, I doubt that would happen if a different brand of tire was fitted-or even if the tires at one end were worn significantly more than the other.

Thanks for reply and this is the case on mine, fronts are well worn....so in essence this is like running front and rears with differing treads, ok so tire characteristics as they are same brand model will be the same but the tread traction provided by front's is way different I guess.

[80stech]

How many threads do you have on this?
You rolled the dice and were lucky enough to get a warning from the xdrive transfer case so maybe learn from that and buy 2 more matching tires.

[omodos]

Yup apologies i obsess alot...but on steep inclines at 1500 i get a shudder...

[omodos]

final update from my personal experience and my post DONT DO WHAT I DID
as soon as i put a set of identical brand/tread and size of course in my case all was good shudder gone on inclines and to be frank i was even getting it at low revs when slowing at traffic. Slightly kicking myself for not measuring the rolling circ. so be interesting to see what other xdrive owners have experienced if indeed they have gone down route I did.

Posts I read elsewhere said take tires to get em skimmed if there is a difference in tread depth/rolling circum...but out here they dont have such a service.

I think lesson learnt my end....will try to get proper balancing alignment done so i dont 'eat' the fronts and necessitate early swap outs...

[Clockwork]

Originally Posted by Serb404

mines a 2004 e53 and no xdrive, I have to push the DSC button to activate 4 wheel drive unless I'm misinterpreting it?

that is definitely NOT true.

you guaranteed have all wheel drive, all the time. the DSC button turns OFF the Dynamic Styability Control, but still leaves you in all wheel drive, all the time.

[wpoll]

OK, since we are updating this old(ish) thread, I might as well also suggest....

Originally Posted by 80stech

In later years BMW used "XDrive" to refer to the interactive computer on the dash so that adds to the confusion ...

I think the interactive system was name "iDrive" - very close to "xDrive".

[80stech]

Then what is the XDrive emblem on the the newer cars referring to ?

Haha I suppose putting the Xdrive label only on cars that had idrive was so that people wouldn't get confused !