Are your run flats noisy

[alexmish]

Originally Posted by cmyX5go

I haven't checked the pressure them since I picked it up. I'll check it later.

You definetely should. I've found out that the dealer never had it adjusted, all 4 tires were at 41psi.

[Fredo]

Originally Posted by Quicksilver

Can you get any BMW without RF's these days??

Yes. The M/// cars come with regular tyres. Those engineers obviously don't rate them.

I had run flats on my 535d which I changed for regular tyres...transformed the ride comfort. I wish there was a spare wheel available as an option in the UK as I would not hesitate to do the same. The X5 is better than my 535d was (it was a 2004 so first gen RFT's) on RFT's but I still think it's compromised.

[rshanholtz]

I just put my winter wheels and tires on my 07 X5 3.0 and I too can confirm they are quieter and softer. The ride quality is much improved. My winter tires are 235/65 R18 and they are not run-flats.

[Wagner]

Originally Posted by rshanholtz

I just put my winter wheels and tires on my 07 X5 3.0 and I too can confirm they are quieter and softer. The ride quality is much improved. My winter tires are 235/65 R18 and they are not run-flats.

Definitely a softer ride, look at the aspect ratio size.

[rshanholtz]

I am running modified Land Rover Wheels from my 03' Range Rover. I got the wheels from Land Rover UK. They look really good on the X5 too.

[dbinc]

Mine is quiet and smooth compared to my previouse X5 (E53), but like what everyone else says, non RFT's would be a bit more quiet and smooth.

[cmyX6go]

Thanks guys. I hope it's just the tire pressure.

[StumpyPete]

FWIW, I think my 211s with RFTs are quiter than the 136s I had with normal tyres on X2, and 64s on X1......never done a back to back test though so couldn't be 100% sure!

[NICKM]

hi cmyx5gO
Yes my X5 (E70) is too very very noisy - I also put it down to the 20' run flat tyres giving road noise !
I get a trumpet type sound (or may be better described as a hollow roar) as soon as some heat gets into the tyres and is present from about 40mph and above.
I've had the car checked by the dealership incase it was a bearing but all put it down too tyre noise - I'm not very happy as my old X5 was much much quieter (non run flats)
The noise also seems loudest from front drivers side, but I do believe it can be heard in passenger side too !!
Whats the noise you hear ?? is it simular to my explanation above ??
Would like to hear more above your X5 problem to compare a I was sure it was just my car that was affected
Regards
Nick

[cmyX6go]

Originally Posted by NICKM

hi cmyx5gO
Yes my X5 (E70) is too very very noisy - I also put it down to the 20' run flat tyres giving road noise !
I get a trumpet type sound (or may be better described as a hollow roar) as soon as some heat gets into the tyres and is present from about 40mph and above.
I've had the car checked by the dealership incase it was a bearing but all put it down too tyre noise - I'm not very happy as my old X5 was much much quieter (non run flats)
The noise also seems loudest from front drivers side, but I do believe it can be heard in passenger side too !!
Whats the noise you hear ?? is it simular to my explanation above ??
Would like to hear more above your X5 problem to compare a I was sure it was just my car that was affected
Regards
Nick

Hey Nick,
I'm starting to think it's wind noise, possibly caused by my wind deflectors . I'm running 19in run flats. I only hear it at higher speeds. I'm not sure I'd describe it as a trumpeting or a hollow roar. The cabin is just loud, almost like something isn't quite sealed right. I would not attribute it to anything mechanical like a bearing. I need to get someone close by with an E70 to take a ride and see what they say. In the mean time, I'll continue to crank the volume on the tunes. On a good note, the stereo is much better than the one in the E53.