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Thread: headlight switch dirty contacts.....

  1. #1
    Registered User Aronis's Avatar
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    headlight switch dirty contacts.....

    I replaced my headlight switch a few years ago and now my A/C control and door inset backlights lights are not working. I moved the dimmer knob back and forth on the headlight control and those backlights came on briefly (thought it might be a fuse, but clearly it's the switch) The backlights on the radio are fine which I found odd. Must be a different circuit.

    So has anyone opened up their headlight switch to clean the rheostat contacts? Or just buy another switch?

    Mike
    '18 BMW M5, '19 Porsche Boxster GTS
    (prior '94 325is, '97 M3, '00 A6 4.2,'03 RS6,'08 A4 Cab,'13 A8L,'15 Q7,'16 BMW M2,

  2. #2
    Registered User Aronis's Avatar
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    I put the old one back in and same issue, odd how turning the dimmer knob made it come on briefly. Must be a loose wire somewhere beyond the control plug.

    Mike
    '18 BMW M5, '19 Porsche Boxster GTS
    (prior '94 325is, '97 M3, '00 A6 4.2,'03 RS6,'08 A4 Cab,'13 A8L,'15 Q7,'16 BMW M2,

  3. #3
    Registered User Aronis's Avatar
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    Started car today, turned on head lights and the backlights on the A/C control came on for a few seconds. It must be some loose/dirty connector, much like my Air Bag which I took out, cleaned the contacts, put back and has been fine for 5 or six years. But how do I find the correct contact? Going to try cleaning the contact on the headlight switch.

    Mike
    '18 BMW M5, '19 Porsche Boxster GTS
    (prior '94 325is, '97 M3, '00 A6 4.2,'03 RS6,'08 A4 Cab,'13 A8L,'15 Q7,'16 BMW M2,

  4. #4
    Registered User Aronis's Avatar
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    No takers?

    Mike
    '18 BMW M5, '19 Porsche Boxster GTS
    (prior '94 325is, '97 M3, '00 A6 4.2,'03 RS6,'08 A4 Cab,'13 A8L,'15 Q7,'16 BMW M2,

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