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  #1  
Old 05-31-2008, 09:26 AM
 
Join Date: May 2008
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Default ML320 Hard to sometimes hard to start

I have a 1999 ML320 that is hard start from time to time. We can drive it than Park than come back and it spins like its not getting fuel or firing. If you let it sit for a while it starts with no problem.
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  #2  
Old 06-15-2008, 01:40 AM
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Default RE: ML320 Hard to sometimes hard to start

I have a 99 ML320 and that exact thing just happened to me today.
Can anyone help with what the problem could be?
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Old 06-16-2008, 12:41 AM
 
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Default RE: ML320 Hard to sometimes hard to start

It was happened with my car, and i just changed the part name oxygen sensor then it start well
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Old 06-16-2008, 01:42 PM
 
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Default RE: ML320 Hard to sometimes hard to start

I had the same problem with my 2002 Ml320, in my case I changed the fuel filter and problem went a way.
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Old 06-20-2008, 12:14 PM
 
Join Date: Jun 2008
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Default RE: ML320 Hard to sometimes hard to start

HAS IT EVER STALLED? IF IT HAS STALLED THEN I SAY CRANK SENSOR.
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  #6  
Old 06-29-2008, 02:25 AM
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Default RE: ML320 Hard to sometimes hard to start

going to change the crank position sensor next week and will let you know what happens.
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  #7  
Old 11-28-2010, 06:48 PM
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Default hard to start

did you fix the problem? what was it? thanks.
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  #8  
Old 12-01-2010, 08:08 AM
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Default

In 99% of these cases the crank position sensor is the problem. In oldere model with two locking tabs one on each side of the sensor for electric plug, Mercedes part number
A0031539628 Bosch 0261210141. I believe '98-mid '01.
Newer 01 on sensor with one connector locking tab is A0031532728 Bosch 0261210171. Just make sure you use OEM Bosch otherwise you will have to do it over soon.
you should be able to find them on internet for around $50 or at dealer for about $150.
These are heat sensitive when they get older and that is why when you let the engine cool off for like half hour you are able to start it again with no problem.
Good luck,
Bernard
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1999 ML320 211K miles
2003 Lexus GX470 272K miles
1999 Chrysler LHS 86K miles
2001 Chrysler Concorde 71K miles
1980 280SE EURO W126 156K miles 142mph top speed SOLD
1984 300D TURBO DIESEL W123 SOLD
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  #9  
Old 12-01-2010, 08:41 AM
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I would like to change the CPS, Does any one have a diagram of the crank position sensor for a ML320
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  #10  
Old 12-03-2010, 01:25 PM
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mbenz80. thank you. i'll try the cps.
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Old 12-03-2010, 01:25 PM
 
 
 
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1999, 320, 98, benz, cps, crank, hard, hot, ml, ml320, position, sensor, start, starts, tabs


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