E-Class (W211) 2003-2009

Out of town with check engine light?

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Old 09-16-2011, 07:37 PM
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Out of town with check engine light?

I am 225 miles from home and my 2006 E320 CDI has a check engine light on. The car operates correctly and all service/filters are current. I have 92K miles and never had a glow plug failure. I am used to the old sprial wire light giving a warning concerning the pre glow system. Will a failed glow plug turn the check engine light on without the sprial wire glow light blinking or coming back on after start?

I do know that I need to have the code read, but I am not in a position to do that as of now.

Thanks
Old 09-16-2011, 07:51 PM
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Originally Posted by MPH 350SDL
I am 225 miles from home and my 2006 E320 CDI has a check engine light on. The car operates correctly and all service/filters are current. I have 92K miles and never had a glow plug failure. I am used to the old sprial wire light giving a warning concerning the pre glow system. Will a failed glow plug turn the check engine light on without the sprial wire glow light blinking or coming back on after start?

I do know that I need to have the code read, but I am not in a position to do that as of now.

Thanks
I don't think you will have an issue driving home with the CEL on. Not the oil/temp etc. But do get it checked.
Old 09-16-2011, 08:02 PM
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Thanks vettdvr.
Do you know if a glow plug failure will trigger the check engine light?
Old 09-17-2011, 02:59 AM
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is there an autozone near where you are staying? If so, simply walk in and borrow their OBDII/CAN code reader tool. All you need to do is give them your ID as collateral. Why risk not knowing what is going on?
Old 09-17-2011, 08:04 AM
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Originally Posted by MPH 350SDL
Thanks vettdvr.
Do you know if a glow plug failure will trigger the check engine light?
It will trigger the CEL but you will also see the Glow plug indicator stay on after start. So if you just have a CEL and no abnormal behavior with the Glow plug indicator it probably is something else.
Old 09-17-2011, 08:37 AM
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Originally Posted by MPH 350SDL
Thanks vettdvr.
Do you know if a glow plug failure will trigger the check engine light?
Yes but in the owners manual you will find details on CEL and it is a drive you to shop issue.
Old 09-17-2011, 09:18 AM
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Originally Posted by vettdvr
I don't think you will have an issue driving home with the CEL on. Not the oil/temp etc. But do get it checked.
He's right. The CEL is also known as the "Scare the wife" light. It primarily monitors emissions systems. If there's something seriously wrong, you should get a specific warning, such as low oil level or overheating. That said, if you can get it scanned where you are, it will give you peace of mind.
Old 09-17-2011, 09:48 AM
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Could be dirty diesel?
Old 09-18-2011, 03:03 PM
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The code was P0269 Cyl #3 contribution balance

I finally got back to civilization and had the code read. "Cylinder # 3 contribution balance" is what the scanner had on the screen. I guess that I probably need to have a contribution test performed? Now that I think about it and look back, I can have a "bumpy idle", but not all of the time. It just briefly comes and goes.

The light did not come on for the last 125 miles of the trip and it has not reappeared with about 6 starts since.
Old 09-21-2011, 05:27 PM
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1991 350SDL, 2006 E320CDI, 1999 F250 7.3L Crew Cab 4X4
Update for #3 injector

After a trip to the dealer, one injector and $689.63 later, I now have a very smooth CDI. I do notice less particulate upon full throtle acceleration and the idle is smooth as glass.

I now know this injector was in failure mode the day I purchased the car. The dealership experience was very positive.

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