Tyre Deflation Light

M5 Powered · 19-11-2010, 10:53 AM

On my way back from Essex last night and the tyre deflation light came on.

This is the second time in a week. Is this a dodgy ABS sensor the culprit? And is it a trip to BMW?

Best

Jonathan

**AlexGTT** · 19-11-2010, 11:00 AM

Possibly but I just put it down to being over sensitive. If mine has tyre pressures just 0.5psi different the sensor goes off 2 or three times on longer trips. Happened a couple of times on my last couple of Ring trips. Corrected 0.5psi and it stopped. Very pedantic.

**DazBlackCSL** · 19-11-2010, 11:10 AM

Always on and off for me, have you had your wheels off recently ?
Mine also just comes on if I've done a very long euro trip at constant high speeds.. Best to just check them anyway

**outnumbered** · 19-11-2010, 12:09 PM

Quote:

Originally Posted by M5 Powered

On my way back from Essex last night and the tyre deflation light came on.

This is the second time in a week. Is this a dodgy ABS sensor the culprit? And is it a trip to BMW?

Best

Jonathan

Are you resetting it properly ? If you don't do the full procedure [which I can never remember, it's in the handbook] it'll keep happening.

Presumably you have checked your tyre pressures ?

azrael · 19-11-2010, 04:22 PM

Quote:

Originally Posted by outnumbered

Are you resetting it properly ? If you don't do the full procedure [which I can never remember, it's in the handbook] it'll keep happening.

Presumably you have checked your tyre pressures ?

I think its press and hold the button until it goes off

Then turn car off, back on and repeat.

**DazBlackCSL** · 19-11-2010, 05:45 PM

Quote:

Originally Posted by azrael

I think its press and hold the button until it goes off

Then turn car off, back on and repeat.

I think thats it

Struggle to get it right even reading the handbook, light on BEEP light off BEEP , yellow / red / BEEP then back on again next time I drive ( bugger fooked it up again ) reset it this week monday seems to be OK

Dan · 19-11-2010, 06:05 PM

Mine came on when the Cups went on back in the summer this year, I reset it straight away and it never came back! When I put the PS's back on it never came up at all, very strange!?

I think the sequence is something like Key in Pos. 2, press and hold button, turns from yellow to red, then start car, drive off as normal, light goes out, done!

Bounce · 19-11-2010, 06:21 PM

Quote:

Originally Posted by DazBlackCSL

I think thats it

Struggle to get it right even reading the handbook, light on BEEP light off BEEP , yellow / red / BEEP then back on again next time I drive ( bugger fooked it up again ) reset it this week monday seems to be OK

My Stock M3 was like that

,the CSL is better though.

Yanto · 10-12-2010, 05:06 PM

Mine did this yesterday - red light rather than orange.

Pulled over, checked tyres, no flats...

Held button down whilst engine on, light goes out, drive off, stays off....bizarre..

mattCSLnut · 10-12-2010, 05:31 PM

Quote:

Originally Posted by Yanto

Mine did this yesterday - red light rather than orange.

Pulled over, checked tyres, no flats...

Held button down whilst engine on, light goes out, drive off, stays off....bizarre..

Sounds like an oversensitive sensor

or a very slow puncture

19-11-2010, 10:53 AM	#1
M5 Powered S5 - Full Throttle Join Date: May 2009 Location: Solihull, West Midlands Posts: 297 Casino cash: $2712	Tyre Deflation Light On my way back from Essex last night and the tyre deflation light came on. This is the second time in a week. Is this a dodgy ABS sensor the culprit? And is it a trip to BMW? Best Jonathan __________________ M3 CSL, Silver Grey, 2004, Factory de-limit, Alcon BBK, Rogue Rear Control Arms, Turner Top Mounts, Braille CF Battery

19-11-2010, 11:00 AM	#2
AlexGTT CSL Register Uber-poster! Join Date: Apr 2008 Location: Herefordshire Posts: 4,374 Casino cash: $8572	Possibly but I just put it down to being over sensitive. If mine has tyre pressures just 0.5psi different the sensor goes off 2 or three times on longer trips. Happened a couple of times on my last couple of Ring trips. Corrected 0.5psi and it stopped. Very pedantic. __________________ CSL Register Alcoholics Anonymous Group Leader & Businessman of the Year '93! www.earleyengineering.com

19-11-2010, 11:10 AM	#3
DazBlackCSL CSL Register Uber-poster! Join Date: Apr 2008 Location: Shaboogling Posts: 7,199 Casino cash: $28478	Always on and off for me, have you had your wheels off recently ? Mine also just comes on if I've done a very long euro trip at constant high speeds.. Best to just check them anyway __________________ CSL Register Lifestyle Coach and Social Secretary

19-11-2010, 06:05 PM	#7
Dan Driving it like I nicked it Join Date: Nov 2009 Posts: 2,058 Casino cash: $6689	Mine came on when the Cups went on back in the summer this year, I reset it straight away and it never came back! When I put the PS's back on it never came up at all, very strange!? I think the sequence is something like Key in Pos. 2, press and hold button, turns from yellow to red, then start car, drive off as normal, light goes out, done! __________________

10-12-2010, 05:06 PM	#9
Yanto CSL Register Uber-poster! Moon Lander Champion! Ragdoll Master Champion! Join Date: Mar 2009 Location: Docklands, London Posts: 5,931 Casino cash: $40036	Mine did this yesterday - red light rather than orange. Pulled over, checked tyres, no flats... Held button down whilst engine on, light goes out, drive off, stays off....bizarre..