[V6-12v] Euro headlights
thecyberpoet at cyberpoet.net
Thu Nov 25 07:24:11 EST 2004
There are two issues with the headlights that come to mind.
The first is the bulb out warning -- the system checks the resistance
on the circuit on each side and compares them; if they are more than a
certain amount off of each other, it assumes the bulb is out. Using
identical bulbs from the same manufacturer usually rectifies this.
The second issue is a relay-related issue on the driving lights (i.e. -
fog lights) and switching from lowbeam to highbeam or visa-versa, where
the driving lights fail to turn on or off. I don't remember the exact
fix, but it had to do with adding a ground circuit somewhere in the
system. I'd check the V8/quattro list archeives to find it.
=-= Marc Glasgow
On Thursday, November 25, 2004, at 07:17 AM, Roger M. Woodbury wrote:
> We have just had European headlights (H-4 bulbs) installed in our '94
> 100 Avant. The headlight low beams trigger the "headlamp out" signal
> on the Autocheck system. I know that there have been posts about this
> on this and other lists, and wonder if anyone remembers what the "fix"
> is for this problem?
> Interesting enough, high beams do not register on the Auto check
> system, and the ikon goes out when high beams are selected. I have
> not checked with the mechanic yet concerning whether or not he relayed
> both high and low beams separately, as that might make a difference.
> I have European headlights in my V8 and had them in my 200 Quattro
> Avant (1989), and the Autocheck system didn't go haywire with them, so
> it is something with this particular installation, or something unique
> to this later body style's Autocheck system.
> Any ideas?
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