Question about 1993 Mercedes-Benz E-Class

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Hard start i have a mercedes 300e 1993. when engine is cold its hard to start, i have to push thr pedal down to get started. it's only when engine is cold (not weather) or when car sits for a long time

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  • hatchbro Jan 14, 2009

    gas motor 2.8L and i live in CA

  • yadayada
    yadayada May 11, 2010

    gas or diesel?

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Buy an engine block heater for the car then it will keep it warm all the time and make it easier to start

Posted on Jan 14, 2009

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Try Running A Can Of Fuel Injector Cleaner Through The Fuel. Any Auto Store Should Carry This Product For About $5.00

Posted on Jan 14, 2009

  • Michael Fisher
    Michael Fisher Jan 14, 2009

    Try The Injector Cleaner And Let Me Know How It Goes It Should Make A Huge Difference.

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Have u done a fuel pump pressure leakdown test? if not do one, the fuel pressure must stay within 5 PSI of the pressure at engine shut down for 24 hours, if it leaks down u will get a hard start and long cranking times, I suspect this is the problem but do the test, u will need a fuel pressure test guage (avail from Kragen auto), the test port is on the tiop of th engine in the fuel supply rail to the fuel injectors, looks like a metal tire valve.

Posted on Jan 14, 2009

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1 Answer

Mercedes 300E starting problems


If the problem is only on cold start check cold start injector, it cuts out after the engine worms up .a faulty thermostat can delay worm up.

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1989 300e runs bad at idle and long time to start


Sounds like fuel filter may be clogged or the throttle body might need cleaning. Or the fuel pump is going bad. I know it sounds like I could narrow it down more but thats the symptoms of all of these things. You just have to narrow it down!!

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Location of fuel pump relay Mercedes 300E 1993


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1988 Mercedes Benz 300E 3.0L Gasoline F.I. ''Sputtering at Idle


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tepfy

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Cold start valve problem


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