[magic77]

The F30 being the first car with actual pressure sensors in the wheels was wondering if anybody knows what would happen if I fitted wheels withouth any sensors.

Thinking of reusing my E90 BBS 18" as winter tyres but they dont have any sensors. Any ideas if you get a warning on the dash or simply the vehicle information does not come up with a the pressure reading ?

thanks

[geordiepaul]

You'll get a warning. They'll need coding out or you'll need RDCI valves. Circa £105 from BMW.

[magic77]

Cool thanks I presume that £105 each. I think coding will be the way to go. Though the way the weather is progressing time will tell. Down south anyway 4 years ago we had snow last couple of years my winters where barely on Dec / Jan and even then a lot of the time was more wet than cold. If I can code them out then I will probably do it otherwise might just sell the bbs

[geordiepaul]

No that's £105 for 4.

[moonshine]

Originally Posted by geordiepaul

No that's 105 for 4.

Post March 14 RDC TPMS are around £55 each from a BMW dealership
http://www.babybmw.net/viewtopic.php?f=49&t=63222

[Lorcan]

£189.60 inc VAT for 4 from us.

http://shop.ac-schnitzer.co.uk/rdc-i...ack-4758-p.asp

[geordiepaul]

I Have had this problem for the last 3 weeks.

Part number 36112358383 (Cars > March 2014) has been discontinued by BMW and is no longer available.
If you buy an individual valve it's £65 from BMW each.

However there is a repair kit that come with 4 sensors which come to about £50 then you have to buy 4 valves which is another £50 all from BMW. Once I have the part number I will post them here. My dealer has ordered this for me.

[magic77]

Mine being a Oct 14 car @ £190 even I rather code them out. Check my tyres every two meets / monthly max. So can live with out them

[xenon]

Mines Oct 14 too but I'll just get used to the bong on start-up I think.

[Consett Mag]

I'm thinking about this issue at the moment. I'm thinking of buying new 441m wheels with winter Dunlops from a company in Germany. I think the €200 option gives you fitted sensors included, but I'm not certain of this. I still don't have a chassis number, so it will wait til I do before ordering this lot. It comes to about £1930 plus shipping.

http://www.leebmann24.de/bmw-winterk...r-f32-f33.html

[Lorcan]

Originally Posted by magic77

Mine being a Oct 14 car @ £190 even I rather code them out. Check my tyres every two meets / monthly max. So can live with out them

And what happens when you get a puncture?

[xenon]

Probably the same as has happened for the last 80 years.

[magic77]

Originally Posted by xenon

Probably the same as has happened for the last 80 years.

Pretty much that, you deal with it as you did in past. Sometimes we rely too much on tech anway.

Its case of coding out for winters only if I fit them which this years is looking unlikely as want get time to sort out the wheels in time anyway.

When the summers go on I'll just re-anable them.

Havent looked at the coding side of things yet but I suspect you can turn the old system on as well for speed rotation as on friends luxury 320D there are no wheel sensors

[xenon]

You are correct. I know little of coding but I do know you can essentially select the TPM as none, ABS (rotation speed) type, or full sensor type.

[magic77]

Need to get my cable sorted and then its back to coding school I think

[Lorcan]

Originally Posted by xenon

Probably the same as has happened for the last 80 years.

You put the spare wheel on?

[Frosticles]

I have just fitted my 18" winter wheels without TPMS. No warning lights came on, all is fine. Happy days

[magic77]

Depends on your build date I think. Do your main wheels have metal valve stems or black rubber.

[Consett Mag]

Originally Posted by Frosticles

I have just fitted my 18" winter wheels without TPMS. No warning lights came on, all is fine. Happy days

It does pose the question as to how much value they are and how necessary they are.
In nearly 30 years of driving I've had punctures to the rate of one every five years.

On the other hand, it's for the most expensive car I've owned...

[magic77]

this is the key, I think the main thing is to check if coding can switch between TPMS and the ratation monitoring if it can you have a winner as should be easy enough to code

[Frosticles]

Originally Posted by magic77

Depends on your build date I think. Do your main wheels have metal valve stems or black rubber.

will have a look.

[ukbeemerboy]

Originally Posted by Frosticles

will have a look.

They'll have black rubber otherwise you would of had an error message and gong on start up. The earlier TPWS just relies on the rolling wheel rates so doesn't matter what wheels and tyres are fitted as long as they all roll the same.