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E-Class (W124) 1984-1995: E 260, E 300, E 320, E 420, E 500 (Includes CE, T, TD models)

Difficult start when warm M111

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Old Apr 15, 2016 | 03:12 PM
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  #26  
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optimusprime m1
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From: Worcestershire UK
W124 260E
Point taken , some profiles dont give you much to go on .
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Old Mar 27, 2017 | 12:39 AM
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w124lk
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E220
Problem solved. Discovered in the end it was the fuel pressure regulator. Ruptured diaphragm causing fuel to leak and not hold pressure in the rail. Fuel would run through the vacuum line into manifold and flood on next warm start. Regulator worked fine when cold but really lost it when warmed up. Replaced. Starts beautifully.
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Old Mar 27, 2017 | 04:03 AM
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  #28  
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optimusprime m1
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From: Worcestershire UK
W124 260E
W124 thats great . I to have a little hot start problem .So next fix is the regulator
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Old Mar 27, 2017 | 04:17 AM
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w124lk
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E220
Yeah i remember you having a similar issue. Before you replace anything check and see if your vacuum line has any fuel in it first. It should be dry. If any sign of wetness then the regulator is bad.
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Old Mar 27, 2017 | 10:00 AM
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optimusprime m1
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W124 260E
w124 i will checik it out asap ..Before i start to operate on it ..Thank you
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