C-Class (W203) 2001-2007, C160, C180, C200, C220, C230, C240, C270, C280, C300, C320, C230K, C350, Coupe

W203 no fuel?

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Old Dec 18, 2017 | 10:22 AM
  #1  
Julien-France's Avatar
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sport coupe C200K
Unhappy W203 no fuel?

Hi guys!

I have a problem on my 2002 sport coup C200K M111.

My car stays in France but actually I live in San Antonio Texas.
I just came back to France for Christmas and my little coup has not ran for 11 month.
Yesturday, after charging battery it fired right up, I went for a little 5 miles run; just to wake it up: no problem.
This morning I fire it up, no problem... and after a few minutes at idle, engine stalled and wont start again.

I pulled an intake hose to throw some fuel directly on the buterfly : it started for 30 seconds => so it's a fuel issue.

I removed the access panels under the rear seat : key in position 2 the pump on the right side runs for 2 seconds and stops (seams like a normal behavior)

on the driver side I removed the return line, I expected the hose to be pressurised : no! nothing came out.
I disconected the other hose and cranked the engine with both hoses disconected, I expected to flood everything : just a few drops came out.

what do you think can be responsible?
shall I order a pump?
what's the module on the driver side? the pump is on the passenger side right?

please help !!!
I can only enjoy my car for 3 weeks this year, would be great if I could drive it!
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Old Dec 18, 2017 | 04:09 PM
  #2  
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You gotta put a fuel pressure gauge to test it. There's a shrader valve on the front of the fuel rail, pretty visible,
screw on the gauge, and check it. Also check the fuse!!! It's in the back, #8 I think.
Pulled mine to keep my nephew from driving my car when I had it parked at my sister's.
If you do pull the fuel pump put tie wraps on the fuel connections!!!
Trust me! I speak from experience. And use one of those tie wrap tighteners to get it tight!
Get the right tie wraps that can withstand being in a gas tank.
Also you'll need this wierd tool.
https://www.oreillyauto.com/detail/l.../63000/4414089
Do auto parts store in France loan tools like they do here in the states?
Get a fuel filter too if you haven't done that already.

Last edited by C230 Sport Coup; Dec 18, 2017 at 04:15 PM.
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Old Dec 18, 2017 | 09:01 PM
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sport coupe C200K
Well, I really have no need to measure the fuel rail pressure when there is nothing coming out of the pump... I know the answer is zero.
So, to continue my investigation I pulled the sender out... Did not look specialy wrong, I just checked that wires and hoses were connected.Then I pulled the pump and float out... Same thing.And that's when I had the worse surprise of the day: looking inside the tank to re-install the assembly... TANK WAS DRY!!!!it took me 6 hours to diagnose an empty tank!!! I am the worse ever!:-oI added 2 liters of fuel in the tank, turned the key and 20 seconds later the car was idling just fine.So, now the problem is identified: my fuel gauge is toasted.Dry empty it shows a little less than half and full it shows perfectly between 1/2 and 3/4.How can I fix it?This evening I drove my car more than 100km (60miles)... Except the faulty gauge, a blown fog light and no more light detection (auto mode for lights doesn't work)... Drives good!These 3 problems are new, they were not there last time the car was parked... That was january 2nd last year! :-p
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Old Dec 19, 2017 | 04:59 PM
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I have to say, I'm getting a bit of a chuckle. DOH!!!
Check the battery, it can cause lots of weird problems.

Swapping the instrument cluster gets complicated and expensive.

Last edited by C230 Sport Coup; Dec 19, 2017 at 05:19 PM.
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Old Dec 20, 2017 | 09:48 AM
  #5  
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My car has been sitting for a year... Battery was completely empty.
exact same situation happened last year and the year before: I live in Texas all year and use this car only 3 weeks per year in december! But last 2 Christmas vacation the car fired right up after charging battery for 2 hours and everything was good (just calibration of ESP and windows).

this year my car has decided to play tricks!
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Old Dec 20, 2017 | 03:32 PM
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A battery that sits forever...well, even if it's holding a charge, the question is how many CCA has it got?
When they get low, these W203's start acting very wierd! Have it checked!
A bad battery will act as a sink to the alternator....
like a giant resistor.

I'd say, when are you gone for long periods, pull the battery, and put it on a block of wood,
possibly on a trickle charger with a timer, but perhaps not if no one is around.
Perhaps the float is stuck in the fuel tank?
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Old Dec 20, 2017 | 07:38 PM
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My C230 has a bad sending unit that is not accurate below a quarter tank. Meaning it will show it has fuel but is out of fuel. You might try adding fuel if you're below a quarter tank.
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