Cog of doom

Humphris · 25-07-2011, 10:51 AM

Morning all,

About 2 weeks ago, my yellow gearbox warning light started coming on. It's an intermittent thing. No rhyme or reason.

Since then its had its Inspection II at which point i asked them to check it out. BMW said the fault diagnosis turned up nothing at all.

It shifts the same whether its on or off. Puzzled.

Any similar experiences? Any suggestions?

Thanks

DIB17 · 25-07-2011, 11:11 AM

I had mine intermittently coming on. BMW said it was a faulty SMG relay and changed it under warranty - been fine since.

**AlexGTT** · 25-07-2011, 11:24 AM

Check bonnet sensor. Been known to cause some issues.

Humphris · 25-07-2011, 02:27 PM

Thanks. Helpful stuff.

I read somewhere that it could be a 'signal error on the solenoid'. Now sure who or what this is.

Is this the same as the SMG relay? Or the bonnet sensor?

If not, is there amy order i should get BMW to investigate these (given their hourly rate!)

Thanks!

northernjim · 25-07-2011, 02:51 PM

Quote:

Originally Posted by Humphris

Morning all,

About 2 weeks ago, my yellow gearbox warning light started coming on. It's an intermittent thing. No rhyme or reason.

Since then its had its Inspection II at which point i asked them to check it out. BMW said the fault diagnosis turned up nothing at all.

It shifts the same whether its on or off. Puzzled.

Any similar experiences? Any suggestions?

Thanks

Was that all that they said????? Did they give any reasons or advice as to how to procede? I mean its not the best reccommendation of BMW's diagnostic skills if they say that a warning light has come on for no reason?

mattCSLnut · 25-07-2011, 02:54 PM

Quote:

Originally Posted by northernjim

Was that all that they said????? Did they give any reasons or advice as to how to procede? I mean its not the best recommendation of BMW's diagnostic skills if they say that a warning light has come on for no reason?

Unfortunately it's an honest reflection of most BMW Main Stealers these days

rstoughy · 25-07-2011, 02:57 PM

LOL you should have seen my dash this time last week

Everything fine now though

northernjim · 25-07-2011, 02:59 PM

Quote:

Originally Posted by mattCSLnut

Unfortunately it's an honest reflection of most BMW Main Stealers these days

So ( I presume the car is warrantied? )

2 weeks later gearbox grinds to halt - is stealer going to cough up when you've previously pointed out a warning light to them? ( the clue is in the name I find

)

mattCSLnut · 25-07-2011, 03:05 PM

Quote:

Originally Posted by northernjim

So ( I presume the car is warrantied? )

2 weeks later gearbox grinds to halt - is stealer going to cough up when you've previously pointed out a warning light to them? ( the clue is in the name I find

)

You do... but they don't

25-07-2011, 10:51 AM	#1
Humphris Wonky 'L' after Washing Join Date: Jun 2011 Posts: 10 Casino cash: $332	Cog of doom Morning all, About 2 weeks ago, my yellow gearbox warning light started coming on. It's an intermittent thing. No rhyme or reason. Since then its had its Inspection II at which point i asked them to check it out. BMW said the fault diagnosis turned up nothing at all. It shifts the same whether its on or off. Puzzled. Any similar experiences? Any suggestions? Thanks

25-07-2011, 11:11 AM	#2
DIB17 S2 - Picking it up Join Date: Jan 2009 Location: Solihull Posts: 77 Casino cash: $5308	I had mine intermittently coming on. BMW said it was a faulty SMG relay and changed it under warranty - been fine since. __________________ Dave SG CSL

25-07-2011, 11:24 AM	#3
AlexGTT CSL Register Uber-poster! Join Date: Apr 2008 Location: Herefordshire Posts: 4,374 Casino cash: $8572	Check bonnet sensor. Been known to cause some issues. __________________ CSL Register Alcoholics Anonymous Group Leader & Businessman of the Year '93! www.earleyengineering.com

25-07-2011, 02:57 PM	#7
rstoughy S6, Sport On, Traction Off Join Date: Jun 2008 Location: Aberdeenshire Posts: 1,947 Casino cash: $25397	LOL you should have seen my dash this time last week Everything fine now though __________________ Paul. Ooooft!!! 15yrs in the CSL and still loving it "shine on you crazy diamond"

25-07-2011, 02:27 PM	#4
Humphris Wonky 'L' after Washing Join Date: Jun 2011 Posts: 10 Casino cash: $332	Thanks. Helpful stuff. I read somewhere that it could be a 'signal error on the solenoid'. Now sure who or what this is. Is this the same as the SMG relay? Or the bonnet sensor? If not, is there amy order i should get BMW to investigate these (given their hourly rate!) Thanks!