SRS Warning Light.

Discussion in 'Electronics' started by greyboy, Aug 4, 2008.

  1. greyboy

    greyboy Hardcore MB Enthusiast

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    Location:
    Chepstow, Monmouthshire.
    Car:
    E280 Sport saloon.
    My 2001 W210 320CDi Estate has had the red "SRS" warning light coming on and off randomly when driving,for the past couple of weeks. This evening on a 4 mile drive it was on all the time. It co-incides with the "air bag off" light on the centre console going on and off too.

    Has anyone any ideas what this could be and how it could be fixed ? :confused:
     
  2. Dieselman

    Dieselman Banned

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    It needs the codes read really but I'd hazard a guess at the passenger seat occupancy sensor or connection.
     
  3. gt-83

    gt-83 Hardcore MB Enthusiast

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    ive just had a week in wales..............1200 miles.....5 miles from home the srs flashed for a second 300 miles since and it has not repeated?? a one off or does it need checking?

    sorry my post looks like ive hijacked original.....didnt mean it that way....but just same topic
     
    Last edited: Aug 4, 2008
  4. pos.k

    pos.k Hardcore MB Enthusiast

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    I had a similar problem on my 04 facelifted W203. It turned out to be a faulty coil spring contact within the steering wheel. It was apparently a fairly regular problem (at least on the C class). It started off being intermittent, and then became permanent. The reason that the passenger airbag light goes on may be that when a fault is detected in the SRS system it deactivates that system completely:eek:
    When I found this out I actually put quite a bit of pressure on the stealer to sort it because I was traveling extended distances without airbags, and hence at increased risk.:mad:
     
  5. OP
    OP
    greyboy

    greyboy Hardcore MB Enthusiast

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    Apr 10, 2006
    Location:
    Chepstow, Monmouthshire.
    Car:
    E280 Sport saloon.
    Just tested the car with and without a passenger. There is no fault at all when driving without a front seat passenger. Shortly after driving off with the front seat occupied the light comes on.

    This shows that the passenger seat sensor/connection is quite probably at fault. Thanks Dieselman. I take it they are easily accessible under the seat if it is raised to its highest level.
     
  6. BlackC55

    BlackC55 Authorised Forum Sponsor Authorised Forum Sponsor

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    The seat base has to come apart. It is DIYable but fiddly.
     
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