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  #1  
Old 08-03-2010, 03:50 AM
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Join Date: Apr 2010
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Sometimes Very Hard Working M103

Got W124 300E 87 120.000miles

When i replaced injectors o rings its hard to working sometimes
At the mornings or completely colds,it runs perfect at single crank.
But when the engine hot at normal operating temp.its really hard to start.
I changed thermostat and another temp sensors and nothing to change.
Any advice?
Sorry For English
Best Regards.

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  #2  
Old 08-03-2010, 05:21 AM
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Location: Melbourne Australia
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I had exactly the same problem.

I changed the fuel accumulator - it's back by the fuel pumps.

After changing injectors and injector o rings car now idles as smooth as silk.
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  #3  
Old 08-03-2010, 06:21 AM
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i controlled it,no problem.
And Hate K-Jet Bull****
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  #4  
Old 08-03-2010, 08:01 AM
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Posts: 187
Fuel pressure incorrect, coldstart valve leaking, Airflow sensorplate rest position wrong, lambda control faulty. Check residual fuel pressure. Could be the check valve at fuelpump.
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  #5  
Old 08-05-2010, 10:06 PM
mak mak is offline
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Quote:
Originally Posted by ercuz View Post
i controlled it,no problem.
And Hate K-Jet Bull****
???

Most likely its your fuel accumulator , don't know what you mean by controlling.
mak
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  #6  
Old 08-05-2010, 10:15 PM
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Quote:
Originally Posted by spit64 View Post
Fuel pressure incorrect, coldstart valve leaking, Airflow sensorplate rest position wrong, lambda control faulty. Check residual fuel pressure. Could be the check valve at fuelpump.
Good advice there. M103 hard warm start can have multiple sources.

Last edited by MBeige; 08-06-2010 at 11:00 AM.
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  #7  
Old 08-06-2010, 01:18 AM
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advice
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i know Jim Smith. i don't actually know him, but I know of him
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  #8  
Old 08-06-2010, 09:05 AM
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Quote:
Originally Posted by ercuz View Post
i controlled it,no problem.
And Hate K-Jet Bull****
English may be a bit rough still, but apparently having no difficulty mastering the profanities.

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1988 California version 260E (W124)
Anthracite Grey/Palomino
Owned since new and still going strong and smooth
MBCA member

Past Mercedes-Benz:
1986 190E Baby Benz
1967 230 Inherited from mom when she downsized
1959 220S Introduced me to the joys of keepin' 'em goin'

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