E-Class (W211) 2003-2009

06 E320 CDI starting issue

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Old Oct 7, 2018 | 12:24 PM
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2006 E320 CDI
06 E320 CDI starting issue

Yesterday I’ve been driving around all day long in the rain it’s been raining for several days. In the evening after the car was sitting in a parking lot for an hour I came out and it refused to start would crank run for one, two or 3 seconds and then shut off. After about 20 attempts it ran for 6 seconds, vary rough and quit. So the next start attempt I depressed the pedal slightly and it caught, keeping it at 950 or 1000 rpm, anything less I would feel bad misfires and would see grey smoke from tail pipe, It would try to die if I let it idle around 750 until about 5 minutes warmup. Temp at that time would be about 60C And still idle rough, but less rough. At full 90C warmup, i don’t feel misfires, no smoke. Turning car off and immediately back on, it starts right up without depressing the pedal after it has fully warmed up to 90C. I don’t have a scanner yet so no codes, but I do not get a MIL light on the dash. 152000 miles. Since last night, it has the same starting problems when cold and I have to depress the pedal slightly. I really need to get a Star or scanner, but which I don’t know yet and carry it with me all the time.

Any thoughts on the issue?

could there be a code for this issue that doesn’t throw a MIL?




Last edited by ot1; Oct 8, 2018 at 08:32 AM.
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Old Dec 13, 2019 | 07:34 AM
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2006 E320 CDI
Originally Posted by ot1
Yesterday I’ve been driving around all day long in the rain it’s been raining for several days. In the evening after the car was sitting in a parking lot for an hour I came out and it refused to start would crank run for one, two or 3 seconds and then shut off. After about 20 attempts it ran for 6 seconds, vary rough and quit. So the next start attempt I depressed the pedal slightly and it caught, keeping it at 950 or 1000 rpm, anything less I would feel bad misfires and would see grey smoke from tail pipe, It would try to die if I let it idle around 750 until about 5 minutes warmup. Temp at that time would be about 60C And still idle rough, but less rough. At full 90C warmup, i don’t feel misfires, no smoke. Turning car off and immediately back on, it starts right up without depressing the pedal after it has fully warmed up to 90C. I don’t have a scanner yet so no codes, but I do not get a MIL light on the dash. 152000 miles. Since last night, it has the same starting problems when cold and I have to depress the pedal slightly. I really need to get a Star or scanner, but which I don’t know yet and carry it with me all the time.

Any thoughts on the issue?

could there be a code for this issue that doesn’t throw a MIL?
this problem was resolved by wiring open (with Aircraft safety wire) the swirl flaps on the intake manifold. There is a push rod ball and socket that connects to the flap servo and it wears out and one end disconnects from the servo.
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Old Dec 13, 2019 | 01:30 PM
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1922 Ford Model T / no OBD
Took 14 month to figure?
Thanks for reporting.
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Old Dec 14, 2019 | 05:54 AM
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2006 E320 CDI
Originally Posted by kajtek1
Took 14 month to figure?
Thanks for reporting.
no it only took a couple of months to figure out, I forgot to come back and report like thousands of other resolved issues on these forums. Somewhere somebody might appreciate that I did
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Old Dec 25, 2019 | 05:38 PM
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2005 E320 CDI, 2015 GLA 250
2006 CDI. Is that a straight six or V-6 engine?

Thanks for responding,
Peter
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Old Dec 29, 2019 | 01:56 PM
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2006 E320 CDI
Originally Posted by ptkacik
2006 CDI. Is that a straight six or V-6 engine?

Thanks for responding,
Peter
the 06 CDI is the 648 engine, a straight 6
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