[vanilepuding]

Last week i went on a short holiday and drove the car at high speeds for the first time . Onze above 180km/h ( around 113 MP/h) the car really becomes a challenge to control . Its takes full concentration to keep it straight in its lane . I do have the heavy 530e , combined with 20" low profile runflat tires . Would that be the explenation or is there a possible susspension problem ?

[Ghanziang]

I only have the standard 18" on runflats, and I have not had that feeling at all. My max speeds are only around 80-90MPH, but if anything it feels more planted at speed than it does going a slow 65MPH. I have even achieved that using snow tires (Michelin x-ice III) and no issues. At what speed does it start to feel like it is starting to become a challenge?

G.

[vanilepuding]

Above 113 mph . Once i got to 137 i really had the feeling it was a death trap. Slowed down after that obviously .

[JOHNBMWM5]

I have the 540i M Sport with MPPSK and it's solid as a rock at high speeds, never had a problem with speed and control.
Yours needs checking.

[vanilepuding]

I do have the feeling a lot of it is due to the rim/tyre combination . Anyone with the same setup that van share his experiences ?

[wknddrivr]

I wont get specific, but my 530i M-Sport with 19 wheels and summer tires is the most stable vehicle I've driven at high speeds.

[vanilepuding]

I drove BMW before , had an e46 and an e91 . Those were superb at high speeds . The e91 with the runflat was not as good , when it was on its winterrims without runflat it was perfect . On the g30 now i think its to much , and the 20" , and the low profile tyre and the runflat and the weight of the battery . Should ask the dealer to change the rims to try it maybe .

[SteveinArizona]

I haven't taken my 530e to that speed but I did once pass a car at just over 100 mph on a steep hill. It felt rock solid and felt like I was only going 60.

I would think that the 530e would be more stable as it has all that extra weight down low. If you car is behaving that way, I think you need to have it looked at.

[drivethemachine]

Sounds like a wheel balancing issue.

[JOHNBMWM5]

Originally Posted by vanilepuding

I do have the feeling a lot of it is due to the rim/tyre combination . Anyone with the same setup that van share his experiences ?

I have 20" rims with Run flat Michelin's, no problems at all.

[530iDriver]

OP: Where do you live?

At least here in the US anything above 75-80MPH can land you in trouble and with our generally bad roads is not really encouraging to break triple digit speeds.

With that said, my 530i with 19" wheel/tire Bridgestone runflats combo feels planted on the road and on rails.

Let me ask you? Have you checked your tire pressures? Under inflation/over inflation can impact the vehicle steering feel and stability at speed.

[vanilepuding]

Tire pressure is ok , checkt it the Day i left on the trip. I live in Belgium , took the trip to the czech Republic crossing trough germany . Where i drove those speeds legally.

[530iDriver]

Get the car out on a lift and checked for suspension issues.

[Krill]

Sounds like an alignment issue to me. Your car should feel planted at high speeds.
Take it to the dealer..

[ztx84]

Definitely sounds like an issue. Mine (although not a 530e) is absolutely rock solid at speed. I'd take yours along to the dealer and see what they say - sounds like something more than something simple like tyre pressures etc.

[SteveMondragon]

I drive my 530e at “higher speeds” every now & then. I’m on staggered Pirelli P-Zero 20” RFTs and non-Msport suspension, and my car feels rock solid at over 100mph.

Granted I’m not sitting there for an extended period of time at over 110mph, but I have full confidence in my car at that speed.

[vanilepuding]

Allright , i will get in touch with the dealer about this . Will keep you guys up to date . Like stevemondragon says , he feels confident at those speeds , i do not in this car . My previous car was a Peugeot and even that was solid at speeds up to 120mph .

[babaikram]

I believe there was thread about floaty feeling in G30 complained by some people. So he might not be alone

[PGN2383]

I have a 530d Touring M Sport with adaptive suspension on 19" wheels. On a recent trip to Germany I too felt the car was quite unstable once over about 100 mph. It felt like there was a constant stiff crosswind and didn't inspire confidence. The tyre pressures were correct. Sport mode was marginally better than adaptive or comfort but not a great improvement.

Has anyone had similar issue and has it been resolved?

Car is booked in on15th August so I'll see if they find anything.

[Richukbmw5]

So we have some pretty high winds in my area the last couple of days and just sitting in traffic I've really noticed a large amount of buffeting from the wind against the side of the car. I've not experienced that with any previous cars I've had. The last BMW being an E60 535d M sport.

Maybe it's just the feeling you get in this car from side winds. When you look at it, it's pretty flat sided.

[PGN2383]

In my case it felt like it was windy - but it wasn't!

[vanilepuding]

Same for me , it feels windy but it isnt ...