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Registered
2008 GL 550, 2012 C250
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73 Posts
Discussion Starter · #1 ·
Hey I started my 01 ML and it gave an extended tone along with a maintenance code 300 appearing in place of the miles that I have on the vehicle. This happened after I started the vehicle, and turned it off because I left something, changed my mind about getting it and started it right back up after about 20 seconds. However the code is still there for the second day. I am thinking this may have caused the error. Maybe? Will it just go away?

Does anyone know what this code means?
 

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02ML320 & 06RClass (sold)
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1,632 Posts
It means that there is a Random/Multiple cylinder Misfire Detected.
 

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Registered
2008 GL 550, 2012 C250
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73 Posts
Discussion Starter · #3 ·
Thanks for the reply but what does that mean? Should I be worried, is this somthing that is a one time thing or might something need to be replaced?
 

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'00 ML430, '97 E320
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165 Posts
Is this the OBDII code? Since when did the instrument cluster display those codes? If this is true, is there still a check engine light?
 

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Registered
2008 GL 550, 2012 C250
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73 Posts
Discussion Starter · #5 ·
The chech engine light never came on. THere is however a little wrench in front of the code. I dont have a manual so I dont know what the symbol means.
 

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98 ML320 / 06 S2000 / 12 E350 BTC
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856 Posts
that sounds more like ... 300 miles to service!


No check engine light = no OBDII code
 

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Registered
2008 GL 550, 2012 C250
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73 Posts
Discussion Starter · #7 ·
Thats what it is man. Figured it out today. It went from 400 to 300 and now 200. I talked to a friend with an ML. Thats what it is.

Thanks for the confirmation!
 

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Registered
2008 GL 550, 2012 C250
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73 Posts
Discussion Starter · #8 ·
I realize these kind of things may be common since to most on this forum, but hey I bought my ML last year an 01 320 with 36000 miles and I have only put around 7k miles on it. Second owner, no problems. So I am still learning. The dealer didn't tell me much about how the insruments work. Thats the main reason why I love this site! Lots of info!
 
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