E-Class (W210) 1995-2002: E 200, E 220D, E 240, E 290TD, E 300TD, E 200, E 240, E 280, E 320, E 420, E 430 (Wagon, Touring, 4Matic)

check engine codes

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Old Feb 1, 2008 | 05:47 PM
  #1  
kdude87's Avatar
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2000 e320 4matic
check engine codes

hey guys i just got the codes from that code reader becuase my engine light has been on for a while now....here are the codes that popped up, does anyone know what they mean and how i can fixx the problem?

codes:

P0173
P0170


thanks!
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Old Feb 1, 2008 | 06:20 PM
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300E a couple 1994 w124wagon E320 Wagon/,1971MGB Track/Rally, MG Midget Autocross ,2000 E320 wagon.
Most often

the mass air sensor,maf,
clean it per the diy on benzworld.org w210 diy section with crc brand maf cleaner.If that does not clear the code after you do the cleaning,replace the insert for about 135 bucks from germanstar.net.easy diy for the first timer.
ohlord
as to what they mean ,they are fuel trim values sent from the o2 sensors to the maf and then regulated by the engines computer to keep you air fuel ratio at the
balance it needs.When the maf is dirty or gone bad it does not relay the correct info to the ecu and trip the codes you have.Don't ignore cel in the future a fuel ratio problem left long term will fry your cats.
ohlord

Last edited by ohlord; Feb 1, 2008 at 06:24 PM.
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Old Feb 1, 2008 | 06:22 PM
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2000 e320 4matic
what about the other code ohlord?...oh and is the mass air sensor a big deal?
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Old Feb 1, 2008 | 06:26 PM
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300E a couple 1994 w124wagon E320 Wagon/,1971MGB Track/Rally, MG Midget Autocross ,2000 E320 wagon.
both

are codes indicative of the maf,they mean both sides of the engine are reporting the same out of range value.That is the clue that it is the maf.
ohlord
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Old Feb 1, 2008 | 06:30 PM
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2000 e320 4matic
alirhgt thanks for your help! i will try the method you suggested

kareem
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Old Feb 3, 2008 | 02:29 AM
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E320 1996
a related question actually ... my engine can't handle harder acceleration for some reason and if i give it a bit extra gas it gets the check engine electronics notification-my mechanic says the cylinder malfunctions

also i notice if i push it hard (did it once while parked) it coughs or hiccups or skips w/e you like to call it

any thoughts?
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Old Feb 3, 2008 | 06:35 AM
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300E a couple 1994 w124wagon E320 Wagon/,1971MGB Track/Rally, MG Midget Autocross ,2000 E320 wagon.
Read

the codes.Post them here.
ohlord
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