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Join Date: Feb 2008
Posts: 7
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'88 911 highbeam switch faulty
Just curious - Has anyone had a faulty dimmer switch when using the turn signal upon completing a turn the dimmer switch fails to return to low beam and goes into high beam instead. Also experiencing the low beam switch failure to remain in low beam. It always fails and goes into high beam. Sutble wiggles affects the switch. Are there easy fixes such as bending the copper contacts?
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11-02-2008, 06:27 PM
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You need to replace the high beam - low beam / turnsignal switch. But before you put a new switch in install a set of relays so the new switch contacts doesn't burn out like the current switch.
The German in their infinite wisdom decided not to use relays to control the current going to the headlamps, but used the contact in the switch to handle the load. Over time thru arcing the contact are destroyed and that is why you need to replace the switch. |
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11-02-2008, 06:42 PM
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Join Date: May 2002
Location: Portland, Oregon
Posts: 12,705
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Common problem. Many threads on this topic. To prevent this in the future, get some headlamp relays.
Try a search using terms: headlight switch high beams Marcus sucro and the like. Be sure you read this thread: turn signal switch quick fix pictures
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Harry 1970 VW Sunroof Bus - "The Magic Bus" 1971 Jaguar XKE 2+2 V12 Coupe - {insert name here} 1973.5 911T Targa - "Smokey" 2020 MB E350 4Matic |
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11-02-2008, 07:40 PM
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You can bend the contacts but that will only help you in the short term. Our host sells the relay kit for ~$25- and it's a pretty simple install. I just did it and now my switch (which I thought was shot) works fine.
I'd try adding the relay then see if you need a switch. Good luck with it! Paul.
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'85 Defender 90 V8 Station Wagon (mine), ‘16 Mini Cooper S Countryman All4, ‘79 Mini Moke Californian (hers). '83 SC Coupe SOLD '96 Carrera 4 Coupe SOLD '89 Carrera Targa SOLD |
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11-02-2008, 07:45 PM
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Join Date: Nov 2005
Location: CA
Posts: 7,288
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Similar problem as mine. It happend that I just fixed mine today. The link from HarryD above is perfect for this task. I would recommend you to disconnect the battery before you start and test all lights before you put everything back together. The copper blades contacts on mine look good but somehow they doesn't work well. I had to bend them and test several times before I put them back together.
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Fat butt 911, 1987 |
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11-02-2008, 11:58 PM
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Slumlord
Join Date: May 2001
Location: Canada
Posts: 4,983
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You can take the whole thing apart and clean it up, bend the contacts, and re-lube it.
Drill out the rivets, replace them with M2.5 screws when you are done. Worked for me.
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84 Cab - sold! 89 Cab - not quite done 90C4 - winter beater |
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11-03-2008, 06:56 AM
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SC Coupe
Moke
