1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Door Open Warning on dash display

Discussion in 'Electrics, Vacuum, Ignition and ECU' started by kenk, Feb 14, 2018.

  1. kenk

    kenk Member

    Messages:
    14
    Likes Received:
    0
    Joined:
    Apr 18, 2010
    Location:
    France
    Your Mercedes:
    203 C270 CDI Elegance
    Hi,
    I, suddenly, have a problem on my 2003 C Class WDB203 where the Door Open warning comes up, even though all doors are securely closed. If I press either the Up or Down arrows on the steering wheel this then disappears, only to come back on randomly.
    As the interior light also does not come on and then fade out, as normal when set to do so, I suspect it could be a fault with the switch on the door pillar.
    Living in France, we are a bit short on auto electricians, so confirmation of this and a diy solution would be helpful.
    Any help would be appreciated.

    Ken
     
  2. star

    star Forum Supporter Authorised Forum Supporter

    Messages:
    4,562
    Likes Received:
    134
    Joined:
    Oct 6, 2004
    Location:
    Reading
    Your Mercedes:
    Smart + others :)
    Check the door switch hasn’t cracked and fallen in.
     
  3. mikestrivens

    mikestrivens Senior Member

    Messages:
    2,674
    Likes Received:
    125
    Joined:
    Nov 21, 2008
    Location:
    Stockport
    Your Mercedes:
    1995 W124 320TE, 1998 R129 SL500, 2016 Triumph Tiger 800 XCx
    The switch itself should be easy to remove and check for continuity. If a wire is broken/shorting in the pillar that would be more complicated.
     
  4. OP
    kenk

    kenk Member

    Messages:
    14
    Likes Received:
    0
    Joined:
    Apr 18, 2010
    Location:
    France
    Your Mercedes:
    203 C270 CDI Elegance
    Thanks for the replies star & mike

    Just had a look at the switch (in situ) and It is very loose in it’s hole and, almost, disappears into the hole when pushed.
    Judging by the marks on the switch housing. it looks like the previous owner had a problem with it.
    Also from the marks, I am guessing that you use a screwdriver or suchlike to prise the switch from the hole, correct?

    Ken
     
  5. star

    star Forum Supporter Authorised Forum Supporter

    Messages:
    4,562
    Likes Received:
    134
    Joined:
    Oct 6, 2004
    Location:
    Reading
    Your Mercedes:
    Smart + others :)
    That’s your problem. :) It just prizes out but the cable is short and a pita to connect to new switch.
     
  6. OP
    kenk

    kenk Member

    Messages:
    14
    Likes Received:
    0
    Joined:
    Apr 18, 2010
    Location:
    France
    Your Mercedes:
    203 C270 CDI Elegance
    Thanks for that star (I think!).
    Knowing me I'd get it out and then lose all the cables back down the pillar!
    Looks like it will have to be a a long trip to the MB dealership or wait until I come over to England next.
    Definitely turning out to be one of those weeks.

    Ken
     
  7. M80

    M80 Senior Member

    Messages:
    2,790
    Likes Received:
    218
    Joined:
    Jan 21, 2006
    Location:
    Derbyshire
    Your Mercedes:
    Viano 3.0 ExLWB (09)
    Before unplugging the switch wrap or tie a fish around the cable on the car side of the plug.
    A long cable tie would do.

    At least then if you drop the plug into the pillar it can be fished out again.
     

Share This Page