Electrical issues, headlights relay - '87 4000

[Tony Hoffman]

Yes, you have to relay the parking lighs. I've done this on several
4000's I've owned int he past. THere are two different ways I did
this. One car, I put a relay at the front and one at the back. In the
other two, I put them under the instrument cover. Under the cover
makes it easier to keep things oriented left to right, as well as
power the instrument cluster with relay power. When doing the rear,
don't forget the wires that run into the trunk for the taillights and
license lights. Double check them along the route inside the plastic
trim. They follow the hinge, and bend just above it in the trunk area.
I've had most of my 4k's had at least one broken wire there. One of
the cars (recently) melted the switch and socket because of this,
though there was an incorrect (too high of amperage) fuse in the slot.

Also, make sure to fuse the leads that come from the battery which
will be used for the new feeds to the lights.

Tony

On Mon, Oct 11, 2010 at 11:16 PM, DK <proleonk at gmail.com> wrote:
> Hi all,
> after my headlight switch melted the third time, I finally relayed my
> headlights. The headlights work fine, however, it did not solve the
> melting switch issue, and added two other issues.
> main issue 1. The switch still gets really hot at the bottom within
> minutes, just with the parking lights on. When the switch melted the
> last time, just the parking lights where on for a few minutes while I
> was in the store. The red wire # 30 really burnt up good, so i
> replaced that connector along with the headlight switch socket.
> I asked a friend for some advice and he told me to look for a short,
> but not quite sure how to tackle that since no fuses are popping.
> Fuses are the correct amperage. I also noticed that the tail light
> circuit boards get really hot, you cant really touch them for more
> then a few seconds. Searching the archives I did not find any emails
> about relaying the parking lights. An earlier search did bring up
> something about relaying both parking lights, along with the interior
> lights, but no longer can find that post. Does anyone have some more
> info about that?
>
> 2. After relaying the headlights, my high beam indicator no longer
> works. Not a big deal, but still would be nice to have. Having a look
> at the Bentley, looks like its circuit 56ak, that got powered by the
> right headlight before. Do I have to connect that wire to the relay?
> If so, it should go on the 7 of the high beam relay?
> 3, My central locking system no longer operates, fuse is good. I did
> at one time create a little spark with a loose wire on the driver door
> - may have taken out the ground of the locking system? Did not have a
> look into it yet.
>
>
> Thanks,
>
> and does anybody have some Euro lights for sale?
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