940 Headlights

Discussion in 'Volvo 940' started by Hans de Koster, Jan 14, 2006.

  1. Hi again group.

    Q. My '96 940 estate 2.3 lpt has a problem with da headlights.There a bit
    dim and yellow.
    I've seen that the reflector has worn out on the upper side ( too much heat
    from the H4 bulbs in 10 years) so the reflection is'nt like it used to be.

    Hope the solution is a replacement reflector (on both lamps),Seen there are
    clips on the glass, hopeful.

    Took my voltmeter and between the battery and the lamp is 1.1V across.Think
    it's too much.

    Any experiences?
    Typical values ?
    Bad relay contacts ?

    Found grounding leads on both ends,the same corrosion no actual
    resistance,think i have to follow the complete circuit trough.

    Any answers, thx in advance, Hans.
     
    Hans de Koster, Jan 14, 2006
    #1
  2. oops 3 times
     
    Hans de Koster, Jan 14, 2006
    #2
  3. We will overlook that this time Hans. The problem with dimming with age is
    generally down to the wiring to the lamps from the relay. It would be OK to
    replace all of the wiring in the lighting path with heavier duty cable to
    minimise "voltage drop" and also give the relay a thorough check for high
    resistance connections (both to the relay and inside the relay). The
    headlamp connections themselves can also be problematic with contact
    resistance.
     
    Peter K L Milnes, Jan 15, 2006
    #3
  4. Well, thx, but i didn't check the relay yet.
    Felt only by hand that it becomes warm.
    Warm relays aren't good.
    'Cause both are not really like new,but the same in color,it must be the
    feeding power cable.
    Hence the plus circuitry.

    Have 2 follow the lead.........
    Hans.
     
    Hans de Koster, Jan 15, 2006
    #4
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