E-Class (W211) 2003-2009

Check engine light not working

Old Dec 3, 2015 | 04:06 PM
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2007 E320 Bluetec
Check engine light not working

Hello all, it's sounds like a good thing but my check engine light is not working. I just failed emissions in NJ on my 08' E320 Bluetec. I wasn't able to find anything on this in the forum. It also failed for "MIL Command Status" does anyone know what that might be?
Thank you, NSP
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Old Dec 3, 2015 | 04:33 PM
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MIL = Maintenance Indication Light (CEL), they should have provided you an inspection report to help identify reason for failure.
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Old Dec 3, 2015 | 06:00 PM
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1922 Ford Model T / no OBD
light bulb?
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Old Dec 3, 2015 | 09:38 PM
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2007 E320 Bluetec
They weren't overly helpful, They said to bring it to my mechanic to have it diagnosed.


Originally Posted by konigstiger
MIL = Maintenance Indication Light (CEL), they should have provided you an inspection report to help identify reason for failure.
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Old Dec 3, 2015 | 09:38 PM
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Is it just a standard bulb behind the cluster?


Originally Posted by kajtek1
light bulb?
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Old Dec 4, 2015 | 11:25 AM
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Depending on in-service date (ISD) repair may be covered. IC is covered under Emissions Warranty On-Board Diagnostics for 8 years/80,000 miles. If you do not know ISD, dealer can provide this info.
Attached Thumbnails Check engine light not working-capture.jpg  
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Old Dec 15, 2015 | 09:21 AM
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2007 E320 Bluetec
I currently have 110k miles, but thank you for your reply!


Originally Posted by konigstiger
Depending on in-service date (ISD) repair may be covered. IC is covered under Emissions Warranty On-Board Diagnostics for 8 years/80,000 miles. If you do not know ISD, dealer can provide this info.
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Old Dec 15, 2015 | 10:24 AM
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1922 Ford Model T / no OBD
You might still want to check your state laws.
I know in CA emission parts are covered for 10 years and I think unlimited miles.
Looks to me that you need to take the car to a dealer for at least scanning the codes.
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Old Dec 15, 2015 | 06:28 PM
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2007 E320 Bluetec
That's correct, the light has never illuminated whether by code or at start up. Does anyone know of this is a light bulb that I can change?
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Old May 13, 2016 | 07:39 AM
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2007 E320 Bluetec
I am still messing with this, I had a Mercedes mechanic do a light test with the Star system and the CIL still didn't illuminate. Any ideas? Should I just buy an eBay instrument cluster and swap?
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Old May 15, 2016 | 09:08 AM
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2007 E320 Bluetec
Will any w211 cluster work? Will it need to be programmed? Is the mileage saved in the Computer? Thank you!!
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Old May 15, 2016 | 11:17 AM
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1922 Ford Model T / no OBD
Members report that other cluster works just fine once you swap original chip holding the mileage.
Remember seeing pictures on the forum.
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