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re: Headlight switch


The headlight switch on my 86 5000CS Turbo also lost the High beam detent 
in the switch and would not stay in low beam last winter. Something 
appeared to break inside the switch. Car had 130K miles.

 I installed a new OEM replacement switch from Halsey Import in Portland, 
Oregon for $115. The dealer wanted $275 for the switch in an Audi box. The 
same Audi dealer sold what they called an "aftermarket brand" switch for 
$200 but with 6 month warranty instead of the Audi 1 YR warranty. All 
three switches were IDENTICAL and made by the same company in Germany.
The 86 5000 does not use relays for either the low or high beam.I 
installed a dual 20Amp relay (purchased from a local autoparts store) near 
the headlamps to improve the voltage delivered to the bulbs. I previously 
had measured around a 1V drop through the switch with the stock bulbs. 
Higher wattage bulbs would have more voltage drop.

rshurter@lanl.gov (Brad Shurter) Wrote: 
| Friends - 
| Not long ago, my headlight switch ('86 5000CS TQ) started 
| refusing to
| remain on low beam.  It would go to low beam as long as you 
| held the handle
| in that position.  It has recently started only working in 
| high beam
| position at all. The lights go *out* in low beam position.  I 
| reviewed the
| threads (back to 7/27/94) on the wiring and such (more 
| voltage, igor, ...),
| and I guess the switch just just can't handle the full 
| headlight load.  I
| also saw in Bently how to replace the switch assembly, but I 
| originally
| wanted to take it apart before ordering a new one from Linda 
| at Carlsen.
| The foot-to-18-inches of snow that we just got this last week 
| kinda put a
| damper on my "didling" around with this.
| Questions:
| Is the switch "fried" completely (unfixable)?
| Price of a new one?
| Maybe Alan (Cordiero) could enlighten us as to what brand of 
| dual headlight
| relay he used in his conversion ("RE: fog lights/driving 
| lights", 21 Sep
| 94).
| --------------------------------------------------------------