940 Headlights

[Hans de Koster]

Hi again group.

Q. My '96 940 estate 2.3 lpt has a problem with da headlights.There a bit
dim and yellow.
I've seen that the reflector has worn out on the upper side ( too much heat
from the H4 bulbs in 10 years) so the reflection is'nt like it used to be.

Hope the solution is a replacement reflector (on both lamps),Seen there are
clips on the glass, hopeful.

Took my voltmeter and between the battery and the lamp is 1.1V across.Think
it's too much.

Any experiences?
Typical values ?
Bad relay contacts ?

Found grounding leads on both ends,the same corrosion no actual
resistance,think i have to follow the complete circuit trough.

Any answers, thx in advance, Hans.

 

[Hans de Koster]

oops 3 times

 

[Peter K L Milnes]

We will overlook that this time Hans. The problem with dimming with age is
generally down to the wiring to the lamps from the relay. It would be OK to
replace all of the wiring in the lighting path with heavier duty cable to
minimise "voltage drop" and also give the relay a thorough check for high
resistance connections (both to the relay and inside the relay). The
headlamp connections themselves can also be problematic with contact
resistance.

 

[Hans de Koster]

We will overlook that this time Hans. The problem with dimming with age is
generally down to the wiring to the lamps from the relay. It would be OK to
replace all of the wiring in the lighting path with heavier duty cable to
minimise "voltage drop" and also give the relay a thorough check for high
resistance connections (both to the relay and inside the relay). The
headlamp connections themselves can also be problematic with contact
resistance.

Well, thx, but i didn't check the relay yet.
Felt only by hand that it becomes warm.
Warm relays aren't good.
'Cause both are not really like new,but the same in color,it must be the
feeding power cable.
Hence the plus circuitry.

Have 2 follow the lead.........
Hans.