C32 AMG, C55 AMG (W203) 2001 - 2007

Check Engine Light

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Old Dec 30, 2008 | 09:08 PM
  #1  
EURO KNG's Avatar
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From: Tracy///Fremont Bay Area , CA
03 C32 AMG
Check Engine Light

Well got my ecu back from LET today , so i installed it and everything was fine Took it for a drive and I could feel the difference right away , anyways I decided to get a oil change since i was due . Went to the same place i have been going for a while . The guy told me the check engine came on after he was done nd said come back if doesn't turn off in ten minutes.Im home now and its still on. So what should I do?? I dont wanna go to the dealer cause i don't want them to flash my ecu back to stock , thanks in advance.
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Old Dec 30, 2008 | 09:42 PM
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300E a couple 1994 w124wagon E320 Wagon/,1971MGB Track/Rally, MG Midget Autocross ,2000 E320 wagon.
The dealer

will not reflash your ECU.
ECU mods are overrated unless you have done major work on the engine to require the new parameters.
Have you got a code reader in your tool box?
Read the code or codes and then post them so we can solve the issue.
Good code reader is only $39.Get one. Because if you keep messing with the ECU you will need it.
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Old Dec 30, 2008 | 10:16 PM
  #3  
EURO KNG's Avatar
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From: Tracy///Fremont Bay Area , CA
03 C32 AMG
Where can I get one?.
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Old Dec 30, 2008 | 10:51 PM
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2002 C32, 2012 S550
Originally Posted by ohlord
will not reflash your ECU.
ECU mods are overrated unless you have done major work on the engine to require the new parameters.
Have you got a code reader in your tool box?
Read the code or codes and then post them so we can solve the issue.
Good code reader is only $39.Get one. Because if you keep messing with the ECU you will need it.
You can also just go to an local independent Mercedes Mechanic and ask them how much to read the codes for you.

This place has them for $27 plus $7-$8 shipping or $21 for express.
http://www.alpha-bid.com/product18.html

Last edited by Gramma_Benz; Dec 30, 2008 at 11:01 PM.
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Old Dec 30, 2008 | 10:54 PM
  #5  
Chazz's Avatar
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From: Ogden, Utah.
C32 ///AMG
Here's the one I use. Harbor Freight $45. Great investment.

http://www.harborfreight.com/cpi/cta...emnumber=94169
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Old Dec 30, 2008 | 10:58 PM
  #6  
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300E a couple 1994 w124wagon E320 Wagon/,1971MGB Track/Rally, MG Midget Autocross ,2000 E320 wagon.
Go to this link

http://www.harborfreight.com/cpi/cta...il_Store_ID=11

on the side bar for the stocton link enter part number 94169

print the price page for that scanner(I think I have sent so many members to the site that they raised the price to $44.99
and take it to the store,they will price match the internet price.
Plug it in the obd2 port under the dash,read the codes and post them.


Most likely a simple solution if it is not related to some value of a sensor change by the modified ECU.
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Old Dec 30, 2008 | 11:00 PM
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From: Tracy///Fremont Bay Area , CA
03 C32 AMG
Thanks , well i went into dyno mode to read what my oil level was at since thats the reason this stupid light came on got this



its blankkk????????
Attached Thumbnails Check Engine Light-1230081952.jpg  
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Old Dec 31, 2008 | 03:37 PM
  #8  
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From: Tracy///Fremont Bay Area , CA
03 C32 AMG
anybody know why its blank??
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Old Dec 31, 2008 | 04:42 PM
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Originally Posted by EURO KNG
anybody know why its blank??
Yes. You need to turn the igition on, without starting the car. Wait a couple of seconds and bam! you'll see your oil level.
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Old Dec 31, 2008 | 05:11 PM
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You could rent the OBD scanner at autozone for free. You just put down a deposit which they refund you when you return the scanner.
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Old Dec 31, 2008 | 05:27 PM
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Originally Posted by greasybenz
You could rent the OBD scanner at autozone for free. You just put down a deposit which they refund you when you return the scanner.
Ditto go go go b4 they're close. GL!
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Old Jan 4, 2009 | 03:00 AM
  #12  
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From: Peoria, Arizona
RENNtech C32 AMG
Originally Posted by 1qikctr
Ditto go go go b4 they're close. GL!
Their the only ones with 24hr stores, albeit in ghetto locations....
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Old Jan 4, 2009 | 10:07 AM
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amazon is also a good source for OBDII (OBD2) code readers - good prices too. GL!
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