"Check Engine" light just came out of nowhere
Thread Starter
Super Member
Joined: Jul 2007
Posts: 561
Likes: 1
From: Sacramento California
2007 S550 (S65 Package)
"Check Engine" light just came out of nowhere
hey guys i was at the drive thru and i look at my speedometer and my check engine light just pops on 
. the car so far drives fine but why did it come on. what could be a possibility. i dont wnt to take it to the dealer b/c well what theyre gonna do is charge me like a million dollars to just tell me whats wrong with it and then charge me about a billion to fix the problem and thats why i post on here. so please somebody help.
. the car so far drives fine but why did it come on. what could be a possibility. i dont wnt to take it to the dealer b/c well what theyre gonna do is charge me like a million dollars to just tell me whats wrong with it and then charge me about a billion to fix the problem and thats why i post on here. so please somebody help.
Member
Joined: Aug 2007
Posts: 155
Likes: 1
From: Manchester, England.
CL203, W211
Could be anything, best thing is to have a diagnostic read out from the OBD socket. There should be an independant garage around that can do this for you for a lot cheaper than the dealer. Phone around. 
MBWorld Fanatic!
Joined: Mar 2004
Posts: 5,017
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From: Ft. Lauderdale Area, USA
2015 ML 350
Remember that "Check Engine" simply means that one or more of the emissions sensors is detecting higher than expected emissions. It could be almost anything. With what gas costs now, it pays to have it looked at.
Junior Member
Joined: Jun 2007
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From: California & Greece
2003 E500, 2006 VW Touareg Individual, 2008 Maserati Quattroporte Sport GT
Try sliver star motors on the corner of fair oaks and california, the owner is really cool he will take care of you.
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Senior Member
Joined: Aug 2007
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From: CT
04 S430 4Matic/03 Ml 320/ 98' E320 4matic/ 73' slc 450/ 05 cherokee
yeah...only takes like a second to read the code...probably not a big deal, at least hopefully not .... like lig said...it could be a loose gas cap...make sure its tight...drive it around for a little, turn it on and off, etc...happend to my wagon a while back
goodluck
goodluck
Thread Starter
Super Member
Joined: Jul 2007
Posts: 561
Likes: 1
From: Sacramento California
2007 S550 (S65 Package)
thanks guys for the help. i went to my buddy and he plugged it up and it came back as an emmission leak. i tightned the gas cap and it went off but came back asap. i turned the car off for a lil while and then when i turned it back on it was off and hasnt turned back on since. thanks
Senior Member
Joined: Sep 2004
Posts: 315
Likes: 2
From: Orlando, FL
2008 E350
My check engine light came on yesterday. When I stopped at the store, I took the gas cap off and put it back on and made sure it was on right. The check engine light hasn't been back on again (knock wood). I would recommend reseating the gas cap before taking it in.
Member
Joined: Oct 2007
Posts: 146
Likes: 0
06 E500 sport
I had the Check Engine light come on a few weeks ago. The air pump relay had shorted, causing it to run full time. This is the air pump at the top center of the engine that pushes air into the exhaust to help the catalyitic converters heat up for about 2 minutes on a cold engine.
When I finally arrived at the dealer, the pump smelled like it was going to cause an electrical fire.
If this ever happens to anyone else, you'll hear the air pump running "key on, engine off". Pull the front cover (top engine front) and unplug the electric air pump.
When I finally arrived at the dealer, the pump smelled like it was going to cause an electrical fire.
If this ever happens to anyone else, you'll hear the air pump running "key on, engine off". Pull the front cover (top engine front) and unplug the electric air pump.
Senior Member
Joined: Sep 2004
Posts: 315
Likes: 2
From: Orlando, FL
2008 E350
Still hasn't come back on (still knocking wood).
Senior Member
Joined: Sep 2004
Posts: 315
Likes: 2
From: Orlando, FL
2008 E350
Came back on yesterday on my way home from work.
Took it to the dealer this morning (Saturday!) and got it back the same afternoon!
"Right exhaust camshaft adjuster solenoid intermittent faulty. Performed SDS short test. Fault code 0060 stored in M.E. controller. DTB-S-B-03.30/08f."
So much for the loose gas cap theory.
Took it to the dealer this morning (Saturday!) and got it back the same afternoon!
"Right exhaust camshaft adjuster solenoid intermittent faulty. Performed SDS short test. Fault code 0060 stored in M.E. controller. DTB-S-B-03.30/08f."
So much for the loose gas cap theory.
