2009 Mercedes Benz ML fails to start after sitting idle all night

Car: Mercedes Benz ML
Year: 2009
Variant: ML300cdi
Categories: Running Rough, Starting & Power Loss
Fails to start after sitting all night. Once primed with easy start fires up no problem and will start all day long. Glow plugs and glow plug relay changed.
Posted: Feb 20, 2023 (1 year ago)
Common cause with most is it drawing air somewhere from a hose connection or a pinhole or fuel running back into tank . You could try switching ignition on 2 or 3 times prior to starting and see if that primes the system .
Posted Feb 20, 2023 (1 year ago)

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