B-Class auto headlights

Discussion in 'Electronics' started by paulandlouise, Oct 4, 2011.

  1. paulandlouise

    paulandlouise Member

    Messages:
    33
    Joined:
    Sep 28, 2011
    Car:
    B160 Sport
    I have just purchased a 1 year old B class 160 sport - the headlamp switch is set to auto ( the setting on the settings screen is manual not constant) but the head lamps seem to remain on all the time ( they may have gone off once automatically ) but only in bright sun light - is there a setting to change how long they Remain on for in daylight or has anyone else got a b class that does the same - is it just a quirk of the car . :dk:
     
  2. alibally

    alibally Active Member

    Messages:
    220
    Joined:
    Jun 8, 2008
    Location:
    edinburgh
    Car:
    W169 A160 and Smart 451
    Hello. The light sensor cannot be adjusted for light intensity . The sensor is beside the rear view mirror. If the car is only a year old then it's a warranty job. It's possible the sensor is faulty. It's attached the the screen by a gel so have a look at it and check for air bubbles.
     
    1 person likes this.
  3. richard

    richard Authorised Forum Sponsor Authorised Forum Sponsor

    Messages:
    6,216
    Joined:
    Jun 10, 2002
    Location:
    Berkshire, UK
    Car:
    MY04 SL55, MY18 GLC63s
    I suspect that the car has had a new windscreen (and thus it should have had a new light sensor) and the light sensor hasn't been adapted to the new windscreen (which needs Star Diagnosis (so a good independant, or MB dealer)).

    Richard
     
    1 person likes this.
  4. Benzowner

    Benzowner MB Enthusiast

    Messages:
    2,700
    Joined:
    Jun 21, 2004
    Location:
    Bristol
    Car:
    Qashqai Acenta Premium 1.6Diesel
    It may also be the time of year. My B Class the lights are nearly always on, and certainly on my previous S class the lights stayed on this time of year, particularly when the sun is getting low.
     
    1 person likes this.
  5. OP
    OP
    paulandlouise

    paulandlouise Member

    Messages:
    33
    Joined:
    Sep 28, 2011
    Car:
    B160 Sport
    B class lights

    Thanks for the replies - will have a look at the sensor - and make a trip to the dealer for them to check it - :thumb: appreciate the replies
     
  6. flowrider

    flowrider MB Enthusiast

    Messages:
    2,891
    Joined:
    Aug 25, 2011
    Location:
    Hertfordshire
    Car:
    SL500 (R230)
    My M class also has its lights on most of the time at the moment. It seems they will come on at the slightest sign of dim light but only go off when in prolonged sunlight.

    David
     
    1 person likes this.

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