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ML430, 2000, Silver
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36 Posts
Discussion Starter #1
When check engine lights came on, I went to mechanic.
The Code was P0170 and P0173. They changed O2 front sensors(they said 80% for O2 sensors and 20% for other reasons).

Reset the lights and run around 10miles, the lights came on again.

Now the code only P0173.
They dont know what is problem..

You guys can know what problem is?

Please help..

The mechanic said my car didn't get any tune ups...so..need tune up like air filter and spart plugs. - But they dont know this will fix the problem.(ML430 2000 / 70000 miles)
 

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Black 2005 ML 500
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1,662 Posts
In the post below, there is a document with the error codes posted:


http://mbnz.org/forums/forums/thread-view.asp?tid=1184145&posts=13&hl=P0173

If you do a search in this forum for that code, there may be more information related to that fault code...

Good luck..

AC
 

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mercedes 430
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45 Posts
hey, nicky when i had the problem, i went to autozone and barrowed their obd 2 sensor, to read the computer, it said fuel trim 1 and fuel trim 2 or somthing like that, i think i was the same code that u got, what u need to do is replace the mass air flow meter and it should be ok. hope this helps
 
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