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Headlights will not go down

Discussion in '308/328' started by doggydoggen, Nov 28, 2023.

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  1. doggydoggen

    doggydoggen Karting

    Apr 25, 2023
    120
    Sweden Umea
    Full Name:
    Doger Karlstrom
    #1 doggydoggen, Nov 28, 2023
    I have a intermittent problem with my headlights, some times the will not go down immediately, it can take 5 sec and next time 30sek and then they can work perfectly 10 times in a row, then they act up again and do this delayed down, the always go down after some time, i have checked wiring, changed lift relay but still have the problem, any ideas?
     
  2. eric lipper

    eric lipper Karting

    Nov 2, 2003
    172
    #2 eric lipper, Nov 28, 2023
    If both are staying up I would first test the switch
     
    doggydoggen likes this.
  3. doggydoggen

    doggydoggen Karting

    Apr 25, 2023
    120
    Sweden Umea
    Full Name:
    Doger Karlstrom
    #3 doggydoggen, Nov 28, 2023
    nothing wrong with the switch, im gonna measure the lift rely and see if i have voltage when i put the switch in the off position.
     
  4. F308fan

    F308fan Karting

    May 7, 2017
    164
    Peoria, AZ
    Full Name:
    Tony Pacini
    #4 F308fan, Nov 28, 2023
    I had the same problem and fixed it by replacing the 105 headlamp motor relay. My lights would always pop up immediately but would seldom retract on command. They’d take several seconds to several minutes but eventually retracted. The 105 relay drives the individual headlamp motor relays. If both headlamps are behaving identically then it’s likely the 105.

    You could switch the suspected bad relay with one of the adjacent relays to see if the symptom changes.
     
    doggydoggen likes this.
  5. miketuason

    miketuason F1 World Champ
    Owner Silver Subscribed

    Feb 24, 2006
    15,814
    Cerritos, CA.
    Full Name:
    Mike
    #5 miketuason, Nov 29, 2023
    Worse comes to worse you can always bring it down manually.
     
  6. doggydoggen

    doggydoggen Karting

    Apr 25, 2023
    120
    Sweden Umea
    Full Name:
    Doger Karlstrom
    #6 doggydoggen, Nov 29, 2023
    this is exactly how my lamps react, but why do you call it 105?, to be sure what relay you mean,
    Image Unavailable, Please Login Image Unavailable, Please Login Image Unavailable, Please Login
     
  7. F308fan

    F308fan Karting

    May 7, 2017
    164
    Peoria, AZ
    Full Name:
    Tony Pacini
    #7 F308fan, Nov 29, 2023
    “105” is what’s called out in the wiring diagram. Mine’s an ‘81 GTSi US version and has a few more relays than yours, but I suspect this relay’s the same. See attached photo:
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    doggydoggen likes this.
  8. doggydoggen

    doggydoggen Karting

    Apr 25, 2023
    120
    Sweden Umea
    Full Name:
    Doger Karlstrom
    #8 doggydoggen, Nov 29, 2023
    Many thanx, i found the culprit, i took the relay apart and it was a tiny black soth blup on the contacts, i took 2000 grit wetsand paiper and after that aluminium polish on a paiper, now it shines like chrome, but it together and now it works perfect..:)
     
  9. F308fan

    F308fan Karting

    May 7, 2017
    164
    Peoria, AZ
    Full Name:
    Tony Pacini
    #9 F308fan, Nov 29, 2023
    Don’t get used to free and easy Ferrari repairs. They’re pretty rare ;)
     
    doggydoggen likes this.

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