[W126 Coupe] Light Problem

[calvin young]

Thanks Guys,

I did switch the bulbs and that did not correct the problem.  The mechanic 
switched entire light assembly (driver light to passenger and vice versa) 
and that still not correct the problem.  So, the first place to look is the 
ground wire.  I checked, but will replace the fuse.

Second, this car is a euro and has the complicated light system that allows 
one to switch on the parking lights on either side of the car.  Lots of 
places in Europe have narrow streets, so they have this unique system that 
allows you to switch on the parking and front turn signal lights 
independently of each other, depending on which side of the street you are 
parked on.  This switch, being made in 83 just might have developed a 
problem.  First, I will replace the ground and see what that does.  I might 
just rewire the darn thing to have the light work like American lights since 
this particular feature is not needed.

I will keep you guys informed.

Cal
----

> Cal,

> If the problem is not a maginal fuse, you have a poor ground from that 

> light.     -Bellamy

>>

> First, check the fuse to make sure it's making proper contact.

>

> Second, have you tried replacing the bulb?

>

> Third, if the bulb is OK, you may want to get a multimeter and measure 

> voltage at the connector at the back of the headlight.  At the same time, 

> check the connector (make and female sides) for signs of corrosion or 

> other crud and clean with a wire brush if you find anything.

>

> Fourth, check your battery terminals to make sure they are clear and not 

> causing any issues with poor or intermittent contact.  Measure your 

> battery voltage with the car both running and off.  Should be 12-13.5V 

> ish.

>

> Fifth, check your ground point behind and below the headlight (typically 

> brown wires going to a single screw) to make sure that it's making proper 

> contact and there is no corrosion there.

>

> Let us know what you find.  One of these solutions should identify the 

> problem.  If it doesn't, then you may have another issue like a voltage 

> regulator or even an alternator not generating the proper output, but 

> that's a more serious bridge to cross if everything else checks out OK.

>

> Cheers,

> Gerry

>

> Hi Cal,

>

> Most likely a poor ground connection,

>

> Carl Hansen

>