Loss power, tranny limp mode?

e46allday · 12-12-2011, 09:29 AM

Ok was driving noticed red battery light on then a loss of power rpm went up but no power. So I pulled over next thing I noticed was that there was no gear selection on display only if I shifted to the steptronic the "S" would appear..during this whole time car still running but couldnt put it in reverse all it did was spike my rpm so I shut of car and tried restarting it but no go everything comes on fine but wont turn over... Checked my fuses #30 was out so I replaced it but still same symptom...i also hear like a humming coming from between motor and dash also when I turn on headlights...humming stays on for about 10-15 second after I remove key...any ideas or similar problems?

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CSL323 · 12-12-2011, 10:00 AM

Very interesting... Never heard of such a thing really... When you said red battery light, I imagined alternator...

It could be a number of things... I'd imagine the non-turn over would be starter or maybe battery?

Maybe the battery can't power the vehicle's functions correctly, so the display isn't correctly working? I haven't got a clue in the world.

What have you tried?

CSL323 · 12-12-2011, 12:50 PM

Also — have you seen this at all?

bigmsd · 12-14-2011, 02:18 PM

what is that cog light? i have that light on my dash and no power in 1st or 2nd.

CSL323 · 12-14-2011, 05:06 PM

Quote:

Originally Posted by bigmsd

what is that cog light? i have that light on my dash and no power in 1st or 2nd.

It means transmission failure

locomexicano · 12-28-2011, 02:52 PM

Dude im having the same problem, what was the issue??? Please help out...
Thanks

Quote:

Originally Posted by e46allday

Ok was driving noticed red battery light on then a loss of power rpm went up but no power. So I pulled over next thing I noticed was that there was no gear selection on display only if I shifted to the steptronic the "S" would appear..during this whole time car still running but couldnt put it in reverse all it did was spike my rpm so I shut of car and tried restarting it but no go everything comes on fine but wont turn over... Checked my fuses #30 was out so I replaced it but still same symptom...i also hear like a humming coming from between motor and dash also when I turn on headlights...humming stays on for about 10-15 second after I remove key...any ideas or similar problems?

Sent from my DROIDX using Bimmer

12-12-2011, 09:29 AM	#1
e46allday Registered User Join Date: Sep 2011 Location: California Posts: 32 My Ride: 01 325ci View My Garage	Loss power, tranny limp mode? Ok was driving noticed red battery light on then a loss of power rpm went up but no power. So I pulled over next thing I noticed was that there was no gear selection on display only if I shifted to the steptronic the "S" would appear..during this whole time car still running but couldnt put it in reverse all it did was spike my rpm so I shut of car and tried restarting it but no go everything comes on fine but wont turn over... Checked my fuses #30 was out so I replaced it but still same symptom...i also hear like a humming coming from between motor and dash also when I turn on headlights...humming stays on for about 10-15 second after I remove key...any ideas or similar problems? Sent from my DROIDX using Bimmer

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12-14-2011, 02:18 PM	#4
bigmsd Registered User Join Date: Dec 2011 Location: wolverhampton Posts: 2 My Ride: 330ci and 325ci View My Garage	what is that cog light? i have that light on my dash and no power in 1st or 2nd.