E39 540i Stalling at Highway Speeds!

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Brian - 01 Feb 2005 21:33 GMT

Lately my 540i Six Speed has been stalling both at idle and while in top
gear on the highway! I manage to restart but it runs very rough then
smooths out but will eventuall need a restart soon thereafter. Sounds like
it's got Microsoft Windows inside!

Dealer said check engine code reveals a Cam Shaft Sensor code?? They told
me to change the plugs and fuel filter which I did but that did not help

Any ideas?

Thanks,

Brian

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Dave Plowman (News) - 01 Feb 2005 22:50 GMT

> Lately my 540i Six Speed has been stalling both at idle and while in top
> gear on the highway! I manage to restart but it runs very rough then
> smooths out but will eventuall need a restart soon thereafter. Sounds
> like it's got Microsoft Windows inside!

> Dealer said check engine code reveals a Cam Shaft Sensor code??

Yup.

> They told me to change the plugs and fuel filter which I did but that
> did not help

They were pulling your plonker.

Signature

*Hard work pays off in the future. Laziness pays off now *

Dave Plowman dave@davenoise.co.uk London SW
To e-mail, change noise into sound.

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Michael Low - 01 Feb 2005 23:32 GMT

> Lately my 540i Six Speed has been stalling both at idle and while in top
> gear on the highway! I manage to restart but it runs very rough then

> smooths out but will eventuall need a restart soon thereafter. Sounds like
> it's got Microsoft Windows inside!
[quoted text clipped - 3 lines]
>
> Any ideas?

Did the dealer say why they did not check the cam shaft sensor? They
do go bad and would likely cause the symptoms you mentioned.

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Jeff Strickland - 02 Feb 2005 00:11 GMT

> > Lately my 540i Six Speed has been stalling both at idle and while in
> top
[quoted text clipped - 13 lines]
> Did the dealer say why they did not check the cam shaft sensor? They
> do go bad and would likely cause the symptoms you mentioned.

Especially when the Cam Shaft Sensor stands up in a crowd and says, it hurts
right here.

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Kyle and Lori Greene - 02 Feb 2005 23:40 GMT

>> Lately my 540i Six Speed has been stalling both at idle and while in
> top
[quoted text clipped - 13 lines]
> Did the dealer say why they did not check the cam shaft sensor? They
> do go bad and would likely cause the symptoms you mentioned.

My 98 740iL (same engine) had this code and problem. Changing the sensor
took me about 30 minutes and about $70 from www.autohausaz.com for the part.
Problem solved.

Kyle.

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Jeff Strickland - 02 Feb 2005 00:10 GMT

If you are getting a Cam Shaft Sensor Code, I would advise you to replace
the Cam Shaft Sensor.

The engine management computer uses the Cam Shaft Sensor to keep track of
where the engine is. If the sensor is not working, the computer will not
know when to inject more gas, or when to fire the spark plugs. The result
is, the engine will shut down.

> Lately my 540i Six Speed has been stalling both at idle and while in top
> gear on the highway! I manage to restart but it runs very rough then
[quoted text clipped - 9 lines]
>
> Brian

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GT - 02 Feb 2005 18:21 GMT

I had the same kind of trouble on my 535i. They changed the camshaft sensor
and that solved the problem perfectly.

Signature

Best regards.
Giovanni Tarantino
Bevaix (NE)
Switzerland
1997 Audi A4 2.8 Q 235,000 km (145,000 miles)
1997 BMW 535i 234,000 km (144,000 miles)

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