Check Engine light HELP!
Thread Starter
Senior Member
Joined: Aug 2009
Posts: 467
Likes: 1
From: Long Island, NY
A few toys & 07' E350 4matic w/AMG sport packg.
Check Engine light HELP!
Alright well it's a ****ty rainy day here in NYC, went out to L.I. and within 5 minutes of starting the car and leaving the house the CHECK ENGINE light came on. Car drives/feels fine. I drove in traffic the whole way then when I go to my destination I called my local MBZ service, they said it might be a minor faulty bulb or a loose gas cap. I took the gas cap out and retightened it, but haven't gotten a chance to drive it yet to see if it went away. I knew someone who has a ML320 and had the same issue with the gas cap, but we'll see.
Anyhow, is there anyway to OBD read without a scanner? I know in my 02' Dakota I don't need a scanner to check computer codes, it's just a simple key trick. Tried it on the Merc but no luck, anything?
Anyhow, is there anyway to OBD read without a scanner? I know in my 02' Dakota I don't need a scanner to check computer codes, it's just a simple key trick. Tried it on the Merc but no luck, anything?
MBWorld Fanatic!
Joined: Apr 2006
Posts: 8,137
Likes: 26
From: Maryland
Eurocharged 2004 E500, Eurocharged ECU/TCU 2005 SL600, 2010 Caddy SwaggerWagon
Alright well it's a ****ty rainy day here in NYC, went out to L.I. and within 5 minutes of starting the car and leaving the house the CHECK ENGINE light came on. Car drives/feels fine. I drove in traffic the whole way then when I go to my destination I called my local MBZ service, they said it might be a minor faulty bulb or a loose gas cap. I took the gas cap out and retightened it, but haven't gotten a chance to drive it yet to see if it went away. I knew someone who has a ML320 and had the same issue with the gas cap, but we'll see.
Anyhow, is there anyway to OBD read without a scanner? I know in my 02' Dakota I don't need a scanner to check computer codes, it's just a simple key trick. Tried it on the Merc but no luck, anything?
Anyhow, is there anyway to OBD read without a scanner? I know in my 02' Dakota I don't need a scanner to check computer codes, it's just a simple key trick. Tried it on the Merc but no luck, anything?
MBWorld Fanatic!
Joined: Apr 2007
Posts: 6,171
Likes: 16
300E a couple 1994 w124wagon E320 Wagon/,1971MGB Track/Rally, MG Midget Autocross ,2000 E320 wagon.
It won't be
a faulty bulb.
Get the code per above or if you want to diy get a scanner for your tool box. They are only 50 bucks at www.harborfreigt.com
It can be a loose cap(emissions system leak)
or a maf related code or if you have 100k miles on the car or more an oxygen sensor related code. You won't feel a lot of them but that does not mean they are not affecting performance or if ignored won't toast a cat converter.
Get the codes and post them. Do not go to the dealer,it can be resolved here.
Get the code per above or if you want to diy get a scanner for your tool box. They are only 50 bucks at www.harborfreigt.com
It can be a loose cap(emissions system leak)
or a maf related code or if you have 100k miles on the car or more an oxygen sensor related code. You won't feel a lot of them but that does not mean they are not affecting performance or if ignored won't toast a cat converter.
Get the codes and post them. Do not go to the dealer,it can be resolved here.
Thread Starter
Senior Member
Joined: Aug 2009
Posts: 467
Likes: 1
From: Long Island, NY
A few toys & 07' E350 4matic w/AMG sport packg.
a faulty bulb.
Get the code per above or if you want to diy get a scanner for your tool box. They are only 50 bucks at www.harborfreigt.com
It can be a loose cap(emissions system leak)
or a maf related code or if you have 100k miles on the car or more an oxygen sensor related code. You won't feel a lot of them but that does not mean they are not affecting performance or if ignored won't toast a cat converter.
Get the codes and post them. Do not go to the dealer,it can be resolved here.
Get the code per above or if you want to diy get a scanner for your tool box. They are only 50 bucks at www.harborfreigt.com
It can be a loose cap(emissions system leak)
or a maf related code or if you have 100k miles on the car or more an oxygen sensor related code. You won't feel a lot of them but that does not mean they are not affecting performance or if ignored won't toast a cat converter.
Get the codes and post them. Do not go to the dealer,it can be resolved here.
What should I do?
Thread Starter
Senior Member
Joined: Aug 2009
Posts: 467
Likes: 1
From: Long Island, NY
A few toys & 07' E350 4matic w/AMG sport packg.
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MBWorld Fanatic!
Joined: Aug 2005
Posts: 3,085
Likes: 59
From: Los Angeles
2009 SL550 Roadster Diamond White, 2008 CLK550 Coupe Obsidian Black
damn gremlins always messing with the check engine light. i think they have become more of a nuisance than something of use. lol, when i had my 94 s420, the check engine light was on for so long that the bulb died out lol
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Thread Starter
Senior Member
Joined: Aug 2009
Posts: 467
Likes: 1
From: Long Island, NY
A few toys & 07' E350 4matic w/AMG sport packg.
LoL. So I guess all is well? I will drive it the rest of the week and see what happens.
Senior Member
Joined: Sep 2006
Posts: 413
Likes: 3
2003 E320
The car has stored the fault. The only code that I know of that "heals" itself is the gas cap. It takes a number of ignition cycles for the ECU to remove that problem so in your case that sounds doubtful. As others have mentioned, OBDII scanners are really reasonable. I purchased one for $40 at Costco. They allow you to clear codes but the car will re- post them if the problem is chronic. If you are really into it, you can get a cable and program for your laptop that provides complete information. The problem will likely return. I would find a scanner and get hard info.
Thread Starter
Senior Member
Joined: Aug 2009
Posts: 467
Likes: 1
From: Long Island, NY
A few toys & 07' E350 4matic w/AMG sport packg.
Yea drove the car today, no light. Not sure what the hell that was about. My feeling was a dead battery, and it recharged itself since I've been driving.
Super Member
Joined: Apr 2005
Posts: 666
Likes: 4
From: Boston, MA USA
03 E320 -wife's car now; 07 Porsche Boxster S - my toy
Get the codes read and post them here -- like Clinton mentioned, there are several emissions sub-systems that need 2-3 drive cycles before the light comes on/goes out. The EVAP system typically needs 2-3 drive cycles to test with additional conditions (i.e., 15-85% gas in tank) before it will test. The EGR system is another that requires multiple drive cycles.
Regards,
paul...
Regards,
paul...
Last edited by paulv; Dec 14, 2009 at 08:29 AM. Reason: addtional info
Thread Starter
Senior Member
Joined: Aug 2009
Posts: 467
Likes: 1
From: Long Island, NY
A few toys & 07' E350 4matic w/AMG sport packg.
Get the codes read and post them here -- like Clinton mentioned, there are several emissions sub-systems that need 2-3 drive cycles before the light comes on/goes out. The EVAP system typically needs 2-3 drive cycles to test with additional conditions (i.e., 15-85% gas in tank) before it will test. The EGR system is another that requires multiple drive cycles.
Regards,
paul...
Regards,
paul...
Thread Starter
Senior Member
Joined: Aug 2009
Posts: 467
Likes: 1
From: Long Island, NY
A few toys & 07' E350 4matic w/AMG sport packg.
Alright well, to wrap it up:
-I got a 08 C300 4matic sport loaner, black/black, was a great car. I was impressed.
-I paid $0 for service, all under warranty. I ended up giving the worker $5 tip, and put $17 gas in the loaner (I drove it a lot)
-Dealer treated me GREAT, beautiful place & great people.
-They replaced and adjusted crankshaft sensor
-They replaced intake cam solenoid (forget which side)
-They left my battery on a charger overnight
Car is 100% tip top and I noticed it feels a bit more powerful, or peppy
-I got a 08 C300 4matic sport loaner, black/black, was a great car. I was impressed.
-I paid $0 for service, all under warranty. I ended up giving the worker $5 tip, and put $17 gas in the loaner (I drove it a lot)
-Dealer treated me GREAT, beautiful place & great people.
-They replaced and adjusted crankshaft sensor
-They replaced intake cam solenoid (forget which side)
-They left my battery on a charger overnight
Car is 100% tip top and I noticed it feels a bit more powerful, or peppy
MBWorld Fanatic!
Joined: Mar 2006
Posts: 3,254
Likes: 15
From: Louisiana
03 E500 and Corvette
Camshaft hall effect sensor. Don't know how you adjust a bolt on part? If it was adjusted my guess it is defective and you need a new one. Total failure will park the car.
