I'm the new owner of this vehicle(52k Miles) and have had a couple weeks. Went to fire it up today, and I have a check engine light? I've checked the oil with the service screen and I have 6.5quarts of oil. It fires up and sounds fine...where do I go from here?? Glow plugs? My old 240D keeps the glow plug lamp lit, when there's an issue...does this 06? Thanks for the help!!

Your fixing to see the difference between the new one and the old one.

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Jim

Since you have obdII in the car then yes you will have a check engine light which means you will have to get code(s) read at the dealer or at your local autozone.

Most likely its a sensor or electrical device for the engine, transmisson, ABS/traction/ESP, climate control, steering, airbags, seats

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1986 300SDL, 211K,Dealership serviced its whole life
1991 190E 2.6(120k)
1983 300D(300k)
1977 300D(211k)

You need to hook up a scanner and read the fault code. Any speculation is pointless.

Scott

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Scott
1982 Mercedes 240D, 4 speed, 275,000
1988 Porsche 944 Turbo S (70,000)
1987 Porsche 911 Coupe 109,000 (sold)
1998 Mercedes E300 TurboDiesel 147,000 (sold)
1985 Mercedes 300D 227,000 (totaled by inattentive driver with no insurance!)
1997 Mercedes E300 Diesel 236,000 (sold)
1995 Ducati 900SS (sold)
1987 VW Jetta GLI 157,000 (sold)
1986 Camaro 125,000 (sold - P.O.S.)
1977 Corvette L82 125,000 (sold)
1965 Pontiac GTO 15,000 restored (sold)

Thanks All, I was afraid of that...I was hoping it was a common issue and I would'nt need codes. But this car is chock full of electronics!! Does AUTOZONE know how to query the system? where the physical connection is? etc... never had them do to this for me..

you are looking for the obdII connector should be on the drivers side beneath the steering wheel near the hood release and the autozone scanner will read any obdII car.

the connection for the mercedes connector will be in the engine compartment

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1986 300SDL, 211K,Dealership serviced its whole life
1991 190E 2.6(120k)
1983 300D(300k)
1977 300D(211k)

You might want to just invest in an OBDII scanner so you will have it on hand. They are not that expensive (I'm sure you can get one for about $30 today) and that will allow you to read the codes and clear them. Once you have the fault codes read report them back.

Common problems with the CDI involve glow plugs and EGR so it would not surprise me to hear the code you read relates to one of those systems.

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Marty D.

2013 C300 4Matic
1984 BMW 733i
2013 Lincoln MKz

ditto on a glow plug issue.

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1980 500SE/AMG Euro
1981 500SEL Euro
1982 380SEL
1983 300TD
1983 500SEC/AMG Euro
1984 500SEC
1984 300TD Euro
1986 190E 2.3-16
1986 190E 2.3
1987 300D
1997 C36 AMG
2003 C320T 4matic

past: 1969 280SE 4.5 | 1978 240D | 1978 300D | 1981 300SD | 1981 300SD | 1982 300CD | 1983 300CD | 1983 300SD | 1983 380SEC | 1984 300D | 1984 300D | 1984 300TD | 1984 500SEL | 1984 300SD | 1985 300D | 1986 300E | 1986 560SEL | 1986 560SEL/Carat | 1987 560SEC | 1991 300D 2.5 | 2006 R350

gotta love pure speculation even it is a known issue with the cdi...

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1986 300SDL, 211K,Dealership serviced its whole life
1991 190E 2.6(120k)
1983 300D(300k)
1977 300D(211k)

Any warranty left?

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1999 SL500
1969 280SE
2023 Ram 1500
2007 Tiara 3200

Gotta love pure speculation, even if it is a known issue with the CDI.....
***********

Buy yourself a simple OBDII scanner if you want to work on it yourself; or take it to the dealer if you don't. If your choice is the former, report back and let us know what you found.

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Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)

Thanks all again...i'm taking it to the stealer this am...I'll report back. I'm leaving on a trip in a couple days so I don't have the time to self diagnose. But, any recommendation on inexpensive but good scanners?

I can predict one thing...you probably won't make it out of the dealer for under $500 unless it is under warranty, regardless of what is wrong. You didn't say if you bought it from a dealer or private seller but if from the dealer then they should resolve it for free if it is within a couple of weeks of purchase.

I'm sure that you can safely drive the car if there are no "symptoms" so to run to the dealer with some sense of urgency for a CEL is silly IMHO.

Buy a scanner, scan it and in less time than you will spend at the service advisor's counter you will know what is wrong. Any OBDII scanner should do but just ask at the parts store what they recommend. You can spend a lot on one but they all basically do what you need - read codes and reset them.

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Marty D.

2013 C300 4Matic
1984 BMW 733i
2013 Lincoln MKz

a difference between narrowing it to systems that could be triggering the light then saying its the glowplugs when the code hasnt been read

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1986 300SDL, 211K,Dealership serviced its whole life
1991 190E 2.6(120k)
1983 300D(300k)
1977 300D(211k)

Well as others have said, it was the glow plugs! I had three dead and three okay...went ahead and had them replace all six. ($689.24). I know what to do next time!! I'm buying a scanner today!! As I said before, time was not on my side this time...but at least I stimulated the economy!!