XSeries-forum

My 50d has broken down in my driveway. It says drivetrain malfunction. It starts and then splutters after 10 or so seconds and then dies so can't believe it's the drivetrain. My question is how will the recovery truck pull it off driveway if the engine keeps stalling? Can then get it in neutral?

Is there nothing in the handbook about emergency Neutral?

On the last E70s with the 8sp box you had to go underneath and release it from there.

This may help with yours....

http://www.bimmerfest.com/forums/showth ... p?t=777770

Hi had that fault and it was the Egr valve not related to the drive train at all but same fault displayed

[quote="allforus"]
Hi had that fault and it was the Egr valve not related to the drive train at all but same fault displayed
[/quote]

Just had rac out. He said exactly the same. It had two faults. He cleared them down. Then it said it had a low battery! (Weird). So tested alternator and all fine. Then tested battery after a charge and all ok! He was confused! Any ideas?

Nope I know mine notified the dealer that it had a flat battery and they rang me but still started ok and fuel pressure sensor was changed a couple of weeks ago it caused rough running and cut out at idle

[quote="allforus"]
Nope I know mine notified the dealer that it had a flat battery and they rang me but still started ok and fuel pressure sensor was changed a couple of weeks ago it caused rough running and cut out at idle
[/quote]

This only started once it was attached to their external battery though. So am pretty sure it must be battery or alternator related.

From my experience with the X6, mine draws 60A+ doing nothing and without the engine running.  If you are doing short journeys then the battery does not recover. 

I have to charge mine once a month in this weather as the heated seats, lights, rear window etc etc add a lot of power draw to the figure above.  The alternator doesn't get enough time to put the charge back in.

I bought a CTEK MXS10 Conditioner/Charger to deal with it. 

[quote="X5Sport"]
From my experience with the X6, mine draws 60A+ doing nothing and without the engine running.  If you are doing short journeys then the battery does not recover. 

I have to charge mine once a month in this weather as the heated seats, lights, rear window etc etc add a lot of power draw to the figure above.  The alternator doesn't get enough time to put the charge back in.

I bought a CTEK MXS10 Conditioner/Charger to deal with it.
[/quote]

Thing is that over the last week it's done around 30-40 miles a day; one day it did 100 miles on motorway! I just can't see how it's not getting a charge!

Certainly sounds like it is being driven enough to keep the battery up.

How old is the car? If it's one of the earlier ones then the battery could well be on the way out. Do you have a multimeter?

I'd pop the ignition on and the headlights, then check what sort of voltage the system is showing, if it's less than about 12.5v, or begins above that and drops below over a few mins, then the battery is probably past it's best. When started, and at a fast idle (1,750 rpm) even with lights, blower, heated seats etc on, then it should not drop below about 14.4v if the alternator is fine.

If you leave it for a couple of days, is it "lazy" sounding when you come to start it, ie takes a few more turns of the engine?

Let us know.

Mike

[quote="Ducklakeview"]
How old is the car? If it's one of the earlier ones then the battery could well be on the way out. Do you have a multimeter?

I'd pop the ignition on and the headlights, then check what sort of voltage the system is showing, if it's less than about 12.5v, or begins above that and drops below over a few mins, then the battery is probably past it's best. When started, and at a fast idle (1,750 rpm) even with lights, blower, heated seats etc on, then it should not drop below about 14.4v if the alternator is fine.

If you leave it for a couple of days, is it "lazy" sounding when you come to start it, ie takes a few more turns of the engine?

Let us know.

Mike
[/quote]

Mike u were spot on! Don't know how an Ahmed battery can die in three years but it did!

[quote="chatuge"]
[quote="Ducklakeview"]
How old is the car? If it's one of the earlier ones then the battery could well be on the way out. Do you have a multimeter?

I'd pop the ignition on and the headlights, then check what sort of voltage the system is showing, if it's less than about 12.5v, or begins above that and drops below over a few mins, then the battery is probably past it's best. When started, and at a fast idle (1,750 rpm) even with lights, blower, heated seats etc on, then it should not drop below about 14.4v if the alternator is fine.

If you leave it for a couple of days, is it "lazy" sounding when you come to start it, ie takes a few more turns of the engine?

Let us know.

Mike
[/quote]

Mike u were spot on! Don't know how an Ahmed battery can die in three years but it did!
[/quote]

Glad I could help!

Mike

Unfortunately modern batteries have reliability issues, especially if allowed to go flat at any point.  Proper 'wet' batteries were much more tolerant than the current crop of gel designs.  Bosch are particularly poor despite having warranties of up to 6 years.