W204 not starting / then fine

Discussion in 'Engine' started by Duke, Oct 21, 2011.

  1. Duke

    Duke New Member

    Messages:
    6
    Joined:
    Nov 12, 2010
    My 2007 C class W204 220CDi has twice now not started when turning the key. It happened many months ago then again this week. I wondered if anyone else has experienced this?

    What happened was I turned the key to pre-heat the engine, all dash lights as normal. Then when turning the key all the way to start nothing happened. I then turned the key to off, tried again and still nothing happened. On the third attempt it started perfectly has been fine since. So two occurances at least six months apart - but slightly worrying.

    The car is due for a service soon but I'd like to know if any other W204 owners have seen this before I speak to the garage.

    Thanks.
     
  2. Rory

    Rory MB Club Veteran

    Messages:
    7,265
    Joined:
    Mar 12, 2005
    Location:
    Cheshire, UK
    Car:
    C270CDi Estate (late 2004 facelift model)
    I''ve had the same thing happen on odd occasions with various cars, and it happened on a brand new W203 I had on test, although my own W203 has never done it.

    I put it down to some random immobiliser confusion. Lock and unlock the car and it's been fine at the next try.

    There are various other possibilites of course - it could a problem with the gear selector (if it's an auto) not recognising that the car is in Park.
     
  3. Anders

    Anders Hardcore MB Enthusiast

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    Feb 11, 2004
    Location:
    Brussels, Belgium
    Car:
    ‘14 BMW X5 M50D
    Having just read your post I went for a drive and surprise surprise the exact same thing happened to me: turn the key and everything powers up, but didn't start or turn over. Tried twice and then took the key out and it started as normal. First time for me and have no idea why it did it - if you have it checked at MB then do report back if there is a problem.
     
  4. Red C220

    Red C220 Hardcore MB Enthusiast

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    Jul 30, 2011
    Location:
    Surrey
    Car:
    2015 SL400 : 2017 S6 Avant
    I had a new Vito back in 2005 that did this randomly, sometimes it took 20 minutes to start. Mercedes never did get to the bottom of it.
     
  5. OP
    OP
    Duke

    Duke New Member

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    Nov 12, 2010
    Thanks for the replies.

    Anders - my service is due in December, if it doesn't happen again before then I'll wait until the service and ask about it. I'll repost afterwards and tell you what (if anything) the garage comes up with.
     
  6. rogersp

    rogersp New Member

    Messages:
    1
    Joined:
    Nov 29, 2011
    Car:
    C220
    W204 Ignition/Starting Problems

    Hi

    I have a C220 that has had this issue for over 18 months. Extremely intermittent problem:

    Insert Key, Steering lock activates, turn on ignition, all lights illuminate, turn key to start, nothing. Release key and turn again, nothing.

    Only way to start car is to turn off ignition, leave key in place, and try again and car starts normally.

    Merc Dealer has been great, replaced:

    Keys
    Ignition module,
    SAM Unit
    Wiring Harness
    Starter Motor
    and more

    without any change to symptoms.

    Now the car has just existed warranty period so I wrote to Merc Cust Services who have suggested that I should buy extended warranty! If problem becomes more frequent and they will consider a "goodwill gesture" which means I have to pay!

    Shame, great car but they seem unable to fix it. I've engaged Merc CS in communication and taking advice elsewhere as I won't let this one go.

    Facts are:

    Fault exhibited in warranty period and still not corrected so liability is Merc's 100%.

    Look for yourself browse the web for this issue and it's well known on other forums.

    Looking at other cars I've owned:

    Audi A6 well into 130K plus miles no issue
    Honda Accord Petrol 100k not a squeak or rattle
    Honda Accord Diesel 100k plus perfect again
    Plus many GM Cavaliers, yes those so called Rep Motors that are hammered for 80k of their lease contracts, no issues !

    With my own cash I buy my dream car and I have to put up with this nonsense. Watch this space, I'm not one to lie down!
     
  7. marcust101

    marcust101 New Member

    Messages:
    14
    Joined:
    May 13, 2011
    Car:
    Mercedes c250
    My w202 does the same thing occasionally, I remove and replace the key then it starts. I have never got a straight answer as to why but its an old car so not worth pursuing to far.
     
  8. Tinkerer

    Tinkerer Hardcore MB Enthusiast

    Messages:
    391
    Joined:
    May 5, 2011
    Location:
    Norfolk
    Car:
    W210 E220 CDi
    I had a similar problem a few years ago now, Merc changed the ignition barrel and starter motor but when the nice man from mobilo life was checking the car in my driveway I noticed that his computer kept saying voltage too low (<10.5V) every time he tried to start it ............... changed the battery ........ no more problem!
     
  9. pareq

    pareq New Member

    Messages:
    11
    Joined:
    Apr 22, 2011
    Car:
    C200K Sport

    Hi Duke, I also experience exactly the same problem. the car won't start until couple of attempts. sometime there is also random warning messages on the instrument cluster..

    when I took the car to authorised MB dealer, they advice to replace SAM module. they suspected the unit is damaged by water ingress. as the problem occur once a while, i was thinking if it is worth to change the unit because the part is quite expensive.

    did you find the cause of problem for your car ?

    Regards
     
  10. Rogers's

    Rogers's New Member

    Messages:
    1
    Joined:
    Jan 15, 2014
    Car:
    W204 2007 C200K
    Hi Rogersp. My 2007 W204 C200 K Elegance has failed to start first time on a few occasions recently, just the same as yours did, or should I say didn't. Key in, turn to first pos and lights all on. Turn further to start and nothing. Remove key and put back in, same thing. Remove key and put back in and it starts. Reluctant to go to Dealer cos I think they are covering up a well known fault here...May have to go to Ex MB tech friend if it persists.

    Regards
     
    Last edited: Jan 15, 2014

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