[Tengocity]

... So says my wife!

She couldn't tell the difference when the springs were changed, which was mainly a good thing, as meant the ride was no worse, but then she had no appreciation of the change it made to the handling, so she thought it was a waste of money! Thankfully she understands that it made a huge difference to me.

Anyways, this week she said the way the car drove now was noticeably better. She said it was quieter and that the bumps felt softer, and the car felt "faster"!

Result!

My view is that she is completely right of course. I'd go further and say that steering feel is improved, any hint of understeer has been neutralised, to such an extent that I feel the car is much more throttle adjustable if you're in sport+ (or sport drivetrain anyway). The ride is so good that I now spend all of my time is sports mode, and if not just on the motorway or stop start traffic then I'm sports+ mode.

I'd say that anyone who has bothered to do the ACS springs and found them worthwhile really should do this too, and they would have themselves the car they envisioned when they bought it.

[MarkG_M5Comp]

+++1

[JD6]

Excellent news. Sounds like a very worthwhile mod, and effectively free.

i will be interested to know if they wear faster than the runflats they replaced.

[Nick the Greek]

Seems a sensible lady then Terry.

[pdk42]

What's the consensus on spare tyres when the RFTs are removed? Space saver?, tyre gunk, AA retrieve?

[MarkG_M5Comp]

Originally Posted by pdk42

What's the consensus on spare tyres when the RFTs are removed? Space saver?, tyre gunk, AA retrieve?

I have puncture repair inserts, a compressor and tyre weld in case it's raining.

Oh, and tyre insurance.

[Tengocity]

Originally Posted by pdk42

What's the consensus on spare tyres when the RFTs are removed? Space saver?, tyre gunk, AA retrieve?

I bought the BMW mobility kit. But have a spare 403M alloy with a runflat on it, which I could swap to if I had a flat at home or something.
I may look in to a space saver for when overseas or something.
I will stick with runflats on my winter set as makes sense not to be faffing around at the side of the road in winter.

[teaston]

I don't understand all this worry of getting punctures, I've had one proper puncture in my 15 years of driving! To use tyre gunk or wait for the RAC once every 15 years really would not bother me one bit!!

[Rich9600]

Originally Posted by teaston

I don't understand all this worry of getting punctures, I've had one proper puncture in my 15 years of driving! To use tyre gunk or wait for the RAC once every 15 years really would not bother me one bit!!

If you believe in fate, you've just tempted it!

I'd guess the cost of instant mobility when you get a puncture with go-flats escalates on newer cars with TPMS? Doesn't the gunk destroy the clever vale?

[teaston]

Originally Posted by Rich9600

If you believe in fate, you've just tempted it!

I'd guess the cost of instant mobility when you get a puncture with go-flats escalates on newer cars with TPMS? Doesn't the gunk destroy the clever vale?

Good point, don't know if it can be used with TPMS. But then if we didn't have RFT's we wouldn't need TPMS!

[Tengocity]

What "worry" do you detect with folk?

Agreed, it's not particularly common- I've had 3 in just over 20 years motoring.

It wouldn't be a reason to stay with runflats on its own for me, but you still need to consider what your plan is if you do have a puncture.

[Buster Blue]

Originally Posted by Tengocity

... So says my wife!

She couldn't tell the difference when the springs were changed, which was mainly a good thing, as meant the ride was no worse, but then she had no appreciation of the change it made to the handling, so she thought it was a waste of money! Thankfully she understands that it made a huge difference to me.

Anyways, this week she said the way the car drove now was noticeably better. She said it was quieter and that the bumps felt softer, and the car felt "faster"!

Result!

My view is that she is completely right of course. I'd go further and say that steering feel is improved, any hint of understeer has been neutralised, to such an extent that I feel the car is much more throttle adjustable if you're in sport+ (or sport drivetrain anyway). The ride is so good that I now spend all of my time is sports mode, and if not just on the motorway or stop start traffic then I'm sports+ mode.

I'd say that anyone who has bothered to do the ACS springs and found them worthwhile really should do this too, and they would have themselves the car they envisioned when they bought it.

I will need to change mine soon so interested in your comments thanks, only one question before I take the plunge in a few months. Would the insurance company be ok with the change ?

[dopper99]

Originally Posted by Buster Blue

Would the insurance company be ok with the change ?

That absolutely depends on your own company so give them a ring first. When I changed to non run flats on my old E90 I contacted Direct Line and they noted it but were not fussed. But other insurance companies may be different - best to check.

[Senna]

Originally Posted by Tengocity

... So says my wife!

She couldn't tell the difference when the springs were changed, which was mainly a good thing, as meant the ride was no worse, but then she had no appreciation of the change it made to the handling, so she thought it was a waste of money! Thankfully she understands that it made a huge difference to me.

Anyways, this week she said the way the car drove now was noticeably better. She said it was quieter and that the bumps felt softer, and the car felt "faster"!

Result!

My view is that she is completely right of course. I'd go further and say that steering feel is improved, any hint of understeer has been neutralised, to such an extent that I feel the car is much more throttle adjustable if you're in sport+ (or sport drivetrain anyway). The ride is so good that I now spend all of my time is sports mode, and if not just on the motorway or stop start traffic then I'm sports+ mode.

I'd say that anyone who has bothered to do the ACS springs and found them worthwhile really should do this too, and they would have themselves the car they envisioned when they bought it.

Hi Tengo
When you say ACS springs,do you mean the shocks as well we're changed ?
And can you give me an ideal of costs ?

[dopper99]

Originally Posted by Senna

Hi Tengo
When you say ACS springs,do you mean the shocks as well we're changed ?
And can you give me an ideal of costs ?

I've had mine done too, it's only springs that are changed. Read here as Lorcan has posted up the info you need....... http://f30.bimmerpost.com/forums/sho....php?t=1050467

[teaston]

Originally Posted by Tengocity

What "worry" do you detect with folk?

Agreed, it's not particularly common- I've had 3 in just over 20 years motoring.

It wouldn't be a reason to stay with runflats on its own for me, but you still need to consider what your plan is if you do have a puncture.

The worry is from BMW, they compromise the handling and ride quality on their cars by fitting them with RFT's, for the sake of something that happens once in a blue moon!

Just wish they'd ditch RFT's and give us proper tyres!

[....,,,,..,,..]

Originally Posted by teaston

The worry is from BMW, they compromise the handling and ride quality on their cars by fitting them with RFT's, for the sake of something that happens once in a blue moon!

Just wish they'd ditch RFT's and give us proper tyres!

+1

I wonder how often spare tyres are checked by most people?



How does BMW assist deal with punctures when using non run flats?


Standard tyres would give great choice as well.

[JD6]

Originally Posted by Brigand

How does BMW assist deal with punctures when using non run flats?

Like to know the answer to this as well...

[Tengocity]

Originally Posted by teaston

The worry is from BMW, they compromise the handling and ride quality on their cars by fitting them with RFT's, for the sake of something that happens once in a blue moon!

Just wish they'd ditch RFT's and give us proper tyres!

Ah right I get you now and completely agree. I'd understand if they made it an option as per the mini.

[Tengocity]

Originally Posted by Buster Blue

I will need to change mine soon so interested in your comments thanks, only one question before I take the plunge in a few months. Would the insurance company be ok with the change ?

As someone else said, individual to each company, but like winters it's usually a matter of letting them know.

[Tengocity]

Originally Posted by Senna

Hi Tengo
When you say ACS springs,do you mean the shocks as well we're changed ?
And can you give me an ideal of costs ?

Just springs, and I have adaptive dampers. About £650 for parts and fitting. It doesn't look like a "lowered car" not is the ride worse, just sorta the body control nicely. For me id say you really need to do both springs and tyres to get the best out if the car.

[Senna]

Thanks Guys