W202 Fuel gauge shows full

Discussion in 'Interior' started by JimBennett, Aug 14, 2011.

  1. JimBennett

    JimBennett New Member

    Messages:
    8
    Joined:
    Apr 11, 2010
    Location:
    Sheffield
    Car:
    1998 Mercedes C280
    The fuel gauge of my 1998 W202 C280 has started to show full and is not reducing with mileage. Grateful for any advice as to how this may be rectified. Hopefully at a modest cost.
     
  2. trapperjohn

    trapperjohn MB Club Veteran

    Messages:
    7,316
    Joined:
    Nov 19, 2008
    Location:
    Lancashire
    Car:
    124 300D 24V Estate
    Ah. Mercedes comedy fuel gauge. I think we all suffer from these at one time or another.

    It could be just the gauge stuck in the housing. A resounding clout on top of the dash may fix it.
    New sender unit fitted into the tank. Not too expensive and fairly easy for an Indie to do.
    Good Luck with it.

    CHEERS
     
    1 person likes this.
  3. Dieselman

    Dieselman Banned

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    Joined:
    Jul 13, 2003
    Car:
    Peugeot 403 Convertible
    More likely to be either the sender stuck or a short on the wiring.
     
    1 person likes this.
  4. GMC

    GMC Member

    Messages:
    48
    Joined:
    Aug 10, 2004
    Mines just started to do this. Had 1/2 a tank in, started up and the sender went up to half, then dropped to empty, stayed at empty for a bit and then went back up. I since filled up to the top and the gauge went tot he top as expected, but has n't moved since.
     
  5. BillyW124

    BillyW124 Hardcore MB Enthusiast

    Messages:
    2,890
    Joined:
    Oct 22, 2010
    Location:
    North West London
    Car:
    W124 E320 coupe, W211 E320 V6 CDI, W211 E63 V8 AMG, R129 SL 280 V6, W215 CL 600 V12 Bi Turbo.
    LOL! all our gauges have gone bonkers it seems!

    Mines doing the same thing, got a new sender, will fit it this week when i get the gyal serviced. Lets see if it does the trick.

    Also if its any help into costings of these things, although ive a 124 im assuming the w202 isnt far off.

    MB £133 inc VAT

    Euro £113

    The unit is a VDO.
     
  6. 300CE

    300CE Hardcore MB Enthusiast

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    Location:
    Sidcup, Kent
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    1990 300CE
    Hi Jim, yep sounds like a faulty sender unit as mine was doing the same (went straight up to full upon putting the ignition on).
     
  7. andy27168

    andy27168 Hardcore MB Enthusiast

    Messages:
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    Nov 27, 2004
    Location:
    Southampton
    Car:
    1997 C230K, 1999 C43/55 AMG
    Hi,
    With my 97 C230K (Prefacelift) I have had similar issues with my gauge dropping to zero when on full and back up again a few seconds later it even failled for nearly a week. I used some injector cleaner and this sorted this issue out, this has happened several times to me over the ten+ years, and the 135,000 miles I have had the car and this always sorts it out without fail.
     
  8. DITTRICH

    DITTRICH Hardcore MB Enthusiast

    Messages:
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    Joined:
    Apr 16, 2004
    Location:
    London
    Car:
    S205 C200SE & W202 C230K
    fuel system cleaner or injector cleaner has "corrected" my gauge twice in 155k miles.
    my c230k lives on asda 95 unleaded around 60% of the time. the rest is abroad or at branded petrol stations in the uk. A few quid on chemcials vs fitting up to 2 new senders. no contest. mind you, I didn't really follow the guidelines on how much to add, I think I chucked in around double what it said on the back into an almost empty tank and then filled up with branded fuel rather than supermarket fuel.
     
  9. vijilants

    vijilants Hardcore MB Enthusiast

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    Jan 23, 2007
    Location:
    London
    Car:
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    The senders (both of them) are not cheap either.
     
  10. WOODYTHEWISE

    WOODYTHEWISE Hardcore MB Enthusiast

    Messages:
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    Location:
    E AYRSHIRE
    Car:
    E 500 Coupe.
    I would check the conections on the sender unit. In my youth,and to my shame I used to disconect these wires on any car I hired, on hand back the car showed a full tank;)
     
  11. SHAKTER

    SHAKTER Hardcore MB Enthusiast

    Messages:
    541
    Joined:
    Oct 14, 2009
    Car:
    W124 320TE, W124 300CE, W124 E36 AMG, W210 E240 V6, G Wagon
    I have the same issue on one of my 124's! Doesnt bother me to be honest, but will look into getting sorted if inexpensive. Billy where are you getting yours fitted? And also who services your 124? I need to get both of mine serviced! :thumb:
     

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