Hard starting - no fuel pressure
#1
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W203 Mercedes C180k
Hard starting - no fuel pressure
Hello friends! I am the owner of a Mercedes C180K W203! For almost a year I have problems with starting.I have a long crank and finally the car starts.Today I have made a pressure test and with the ignition on the pressure is about 47PSI but right away it drops to 0 PSI.When I turn the key and starts cranking the pressure rises slowly and when the pressure reach about 45 PSI,the engine starts.I shut off the engine and pressure drops to 0 . I put a link with the test:
Any advice is important to me.Thank you!
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W203 Mercedes C180k
Today I had replaced the pressure regulator on the fuel rail but the problem was not solved.I will try to change fuel filter,I will buy MANN WK 720 fuel filter with integrated pressure regulator.Hope that will solve the issue.
#7
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Pump was replaced? Perhaps it's faulty.
New? from where? China?
Always go back to the last you did.
New? from where? China?
Always go back to the last you did.
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#9
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What year is this car. Does it have an external fuel filter or an in-tank unit?
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The car was made in 2003. The fuel filter is external. It is located under the car, close to the rear left wheel.
Last edited by sofo_bogdy; 02-23-2017 at 02:13 PM. Reason: Mistake
#12
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You know for sure that the regulator is on the rail! Except you are wrong. It's in the filter. There are only 2 ways your problem can occur.. bad pump or bad filter.. or a 3rd option. Bad workmanship when u replaced the pump.
Good luck
Good luck
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#14
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ha. Even my lady was asking about you....no joke!
Is there a 'lady's man' reputation I don't know about spreading all the way from the Dark Continent to my humble abode?
(As it was called by author Henry M. Stanley for it's mysterious and largely unknown features in the 1800's.
Figured I'd better qualify the term for all the uneducated heathens out there
who might mistakenly take it for something derogatory. )
Last edited by C230 Sport Coup; 02-23-2017 at 10:23 PM.
#17
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Ah. Well, definitely something that should be done in tandem with a FP if the filter hasn't been replaced recently. Every 60K miles according to MB. Probably why the old pump broke.