The only problem I have with my 3.0D is not the engine- the flat tyre sensor possibly, because every now and on it just goes off when driving on a wet motorway and none of the tyres are bad. I've been to 2 mechanics and none of them could find anything, just said the air pressure was wrong. Well, it was not, because I check it every couple of weeks. \the problem started after I had alloys replaced to 19'' with wider rear ones (285/55/19) so I suspect the boys have hit something there while placing them and the mechanics were just too lazy to check. I'm going to the third one soon. Willlet you know if he find anything.

strange I have factory 19" with 285's on the rear only had a light once with a flat reset once replaced no drama from there

Yep, should be like yours. they even told me how to correctly reset the thing- with the button pressed, then put the key to ignition and start the car and wait 'till it disappears. And what tyres have you got at the front? I have 255/55/19"- thought maybe it's because the rear are wider the sensor goes crazy, but I rather suspect the guys must have done something there 'cause they weren't gentle while placing those wheels at all...
Rob

yup same 255 55 19 something crook there matey should not be an issue even when I put 265 and 325 20''s never had a problem

My car doesn´t have those sensors but I undestand that they are placed inside the rim, in the back of the "airplug" (I don`t know the name in english), one for each individual tire, maybe when you changed your rims they weren`t placed in the new ones, or maybe their batteries are dead, cuase I also understand that they are battery opperated and transmit some sort of a radio frecuency

How much did it cost you to replace your turbo ? by BLUEAGLE

Actually I haven`t replaced it yet, I`m still waiting (and saving money), but it is around $2500 US, just parts,

No these sensors work on wheel rotation not in the tyre as the tyre looses preasure it becomes smaller in diameter and this is picked up by the sensor as the car drives

Rob,
Original equipment tyre size for staggered 19" wheels should be: front 255 50R 19, rear 285 45R 19.
The tyre pressure warning system is sensed through the same sensors used fo anti-lock braking (ALB). If the computer sees a difference in wheel speed, it will activate the tyre pressure warning. This difference in wheel speed could be caused by an under inflated tyre (low pressure causes reduced circumference and wheel turns faster in relation to others), it can also be caused by aquaplaning. The wheels will turn at different speeds when the car aquaplanes and the low tyre pressure warning will sense this difference and set the warning light.
The last set of tyres I had (Bridgestone Turanzas) were not too good at clearing water from under the tyres, and I experienced some aquaplaning. Can't remember if it put the TPW light on though.
Another side effect of aquaplaning is the effect it can have on the cruise control. CC also uses the ALB sensors for speed control. If you aquaplane with the CC engaged, the computer will sense the wheel speed reducing and pour in more diesel to regain the desired speed. This could be a little disconcerting seeing the speed decreasing and the rev's increasing.
If your problem only occurs in the wet, I would suspect aquaplaning and not a real fault.
Colin.

hi guys, i have a dec 04 3.0d sport x5,are any of you having problems with your panoramic sunroof.i have been told i need a new sunroof due to problems with the cassette cable , it would not close from the tilt position.you can shut the front 1 manually but not the rear 1.

Grrrrrrrr my truck has now been in the shop for a week and still no joy they are telling me high preassure fuel pump is the problem now I can just see the dollars racking up here I am not sure this is the gremlin as when I took the hose off and ran the pump it pumped at least a litre in a few seconds told them check the crank sensor but not sure if they have going to have to front down there now and do my naana with these guys