Can it be the tyres??

[Smeeagain]

[quote="grumpywurzel"]
Put whatever you want on your cars....
[/quote]

That comment is really unhelpful - a newbie looks at that,d onset bother to read the full thread and goes out and knacker the transfer box and wonders why because some guy on here told hm he could put on anything that he wants. I think what you meant to say is 'put what you can afford on your car bearing in mind the implications on other parts of the vehicle as a result of getting the tyres wrong. It's very much a case of false economy and putting on what you 'want' is very much at your own risk, because it's not necessarily going to work and could be massively costly in the long run.

Smee

[grumpywurzel]

[quote="Smeeagain"]
[quote="grumpywurzel"]
Put whatever you want on your cars....
[/quote]

That comment is really unhelpful - a newbie looks at that,d onset bother to read the full thread and goes out and knacker the transfer box and wonders why because some guy on here told hm he could put on anything that he wants. I think what you meant to say is 'put what you can afford on your car bearing in mind the implications on other parts of the vehicle as a result of getting the tyres wrong. It's very much a case of false economy and putting on what you 'want' is very much at your own risk, because it's not necessarily going to work and could be massively costly in the long run.

Smee
[/quote]

What I meant is exactly that. Personally and I can feel the starting of a witch hunt brewing here but I put the best tyres on that I can. Also from reading here it seems that the X5 likes to have a complete set of tyres changed at the same time using the same make and model of rubber

Budget ior cheap tyres in my eyes on a car that weighs more than my bloody Labrador (which is a lot!

[Smeeagain]

[/quote]



So my two pence worth... Replace all four tyres at the same time, shoot me if you want but it'll be cheaper than replacing the transfer box!
[/quote]

Well said - totally agree!

[X5Sport]

'Approved' tyres all carry a '*' symbol in the product data.  They are matched circumference especially for the staggered sets to maintain a closer rolling radius front to rear and stop transmission wind up/breakage.

[dani_armo]

Next discussion now the issues have gone with the correct tyres....Run flats 

How safe is it to keep them on? The tyre fitter did say the alloys were ok to take them and I have just checked they have EH2 marked on them (the rears anyway) so I presume theres no danger of a tyre 'slipping off' if one gets a puncture and the standard ABS/stability sensors are safe enough to warn me of any air loss??

I am planning to get a set of new michelin diamaris all round at some point, but if these are ok I am happy to run with them until they need replacing

[Smeeagain]

I can't answer your questions, but I would say that whilst there is clearly an advantage in having a run flat tyre, there is also a downside too - it is somewhat subjective, but a lot of folk don't like the quality of ride - they find it too stiff. If you think about it the sidewall has to be stiff to maintain the integrity of the tyre. Easier said than done but if you can try an X5 with/without run flats you can decide for yourself. Mine came with run flats and I got rid of them and much much prefer the ride since then. But others would disagree and neither is right or wrong it is a personal preference.

Smee

[kkx5]

19" run flats: OK
20" run flats: Too stiff

[Pinewood]

I find the 19" runflats noisy and stiff on my M sport X3, yet runflat winter 17" tyre setup is sublime.
It's all very subjective, but for me the summer setup on 19" staggered setup will have to be non runflats


Sent from my iPhone

[X5Sport]

It's just the sidewall height making the difference.  I find the same between my 19" winter set and 20" summer set.  19" are quieter and allow more 'give' because of the higher profile.  Both are staggered and will remain as RFT as I don't find the ride too bad.  There was no 'MSport' suspension offered with the pre-LCI X6 and no air springs either unless optioned, making it generally better IMHO.

[Nat]

Hi,

Just an observation from personal experience. I am aware of the RTF / Non RFT argument.

Has anyone actually suffered a puncture with a RFT tyre ?

I have.............there is far more give in that side wall tyre than you think , + of course the X5 is not exactly twiggy either.
I always thought you would need the tyre pressure monitor to tell you when you have a puncture. because you may not know/notice. I can tell you that may be the law or a EU manufacturing directive but I can also tell you you can visibly see the tyre is deflated and you can also feel it.
Of course advantages of RFT is assuming you havent got a  gashed the tyre , then you can drive on it almost indefinitely if you keep stopping to re-inflate it there by saving the sidewall from damage and travel far further than the advisory 50 miles .

Just other things to consider thats all.............

[gavp84]

I had RFT Tyres on my 123d, had a puncture and tried to drive 6km home and after 2km it split I had to pull over and get recovered!

I am not a fan..

[Smeeagain]

[quote="gavp84"]
I had RFT Tyres on my 123d, had a puncture and tried to drive 6km home and after 2km it split I had to pull over and get recovered!

I am not a fan..
[/quote]

That's disappointing, but I believe quite unusual, hence the name runflat. If the OP is considering runlflats then Id ask the fitter what the manufacturers advice is on their ability to be run flat.

If I recall correctly when they were first introduced it was more a case of being able to continue to drive safely until you could bring the car safely to halt, as opposed to the car skidding all over the place, and they weren't (originally) meant to be run any significant distance, although I'd expect more 2k out of them !

Smee

[X5Sport]

Unusual indeed.  I had a puncture on the X6 (0.25" bolt) and only noticed because the steering wasn't quite right.  The only way that I could tell was the front right tyre tread was warmer than the other three.  To look at it was the same on all four corners of the car.  TPMS just told me of a pressure loss and that was all.

Drove several miles home with no issue, had it fixed and ran it for another 4 years.

[Nictrix]

My wife had a blow out on the motorway on the way home one night at around midnight in the X6.
It was a front tyre and something ripped the sidewall.
She said she could feel there was something not right and there was the warning on the dash.
She called me and I told her to drive it home slowly which she did and made it fine, around 8 miles.
The next day she drove it around 15 miles to get the front tyres swapped and alignment done.
The garage showed her that the wheel had a slight buckle ,that they fixed, which may have been caused by hitting potholes with a flat tyre.
In this instance the runflats were a saviour as she would have been stuck otherwise on the motorway in the middle of the night.
Pricing quality tyres there didnt seem to be much of a difference between runflats and non runflats in 20" sizes so in this vehicle I would stick with runflats.

[X5Sport]

I found the same when I looked last year and stuck with them too, although still having a warranty means I need to play by the rules as well.