[W126 Coupe] Headlights Beam Height Adjustment Switch - not working(560 Euro)

[Dick Spellman]

Hi Dawid:

I tested my 86 300se euro single fog lamp with bulb removed and the dash 
headlamp center orange lamp still lights up.  So, I'd say there is no 
fault indicator built into the circuit.  Anyway you can test for 12volts 
at either socket?  I wonder if the single element bulbs that you have 
are the correct type where you've never had them work since owning the 
car??  The 12 volts present with the switch on would confirm this as the 
problem or bring you back to a unique fuse somewhere in the circuit, 
wiring issues or the dash switch itself I guess.

Dick

 Dawid Loubser wrote:

> I have tested the bulbs, and I have also swapped the reverse lights /  
> fog lights bulbs, and in both cases, the bulbs are fine. My car  
> definitely originally came with two foglights (sockets, bulbs), as  
> the single previous owner of the car has definitely not had them  
> fitted or altered. And as I mentioned, this is standard practice in  
> SA,  cars usually came with two fog light bulbs in the rear, only  
> exception being many of the newer cars (Renaults, Ford hatchbacks,  
> etc) that only physically have one foglight.
>
> So... not the bulbs, probably not the wiring (as you said) so... must  
> be the sockets? But I find it unlikely that it's both sockets that  
> have failed. But I will do more
> testing before I can be sure.
>
> Just one question: Does the orange indicator mean that the wiring is  
> in fact good? (i.e. will it not light up if there is a wiring problem).
>
> kind regards,
> Dawid
>
>
> On 26 Jun 2006, at 4:15 PM, Dick Spellman wrote:
>
>> Dawid:
>>
>> Remove both rear tail light inside trunk covers on your SEC to  
>> access the bulb sockets.  One side of the car should have a socket  
>> for the SINGLE rear fog lamp installed as a factory fitting for  your 
>> model.  Remove the single bulb and test the socket for 12  volts with 
>> the dash headlamp orange indicator lighted to confirm  the wiring is 
>> in fact good.  Test resistance on the bulb to  determine if it needs 
>> replacement.  It would seem unlikely that you  have a wiring 
>> problem.  far more likely it's the bulb or socket  that need s 
>> attention.
>>
>> Regards,
>>
>> Dick
>>
>> Dawid Loubser wrote:
>>
>>> My car has two fog lamps - this is fairly standard in South Africa  
>>> (I  guess our laws are different). Definitely not a later  
>>> modification,  or some
>>> such event. Upon "second click" as you put it, the orange light  in  
>>> the middle of the pull switch comes on - which I guess is  normal (to
>>> indicate that the rear fog lights are indeed on).
>>>
>>> I guess the only possibility is a wiring problem... Am I correct  
>>> in  assuming that the wiring are the ones visible if you pull off  
>>> the  rear side
>>> panels (they just clip out) ? Does anybody here happen to maybe  
>>> have  a wiring diagram for these (there are screw-in connectors,  which
>>> looks like all the wiring going to the back of the car pass through)?
>>>
>>> regards,
>>> Dawid
>>>
>>>
>>> On 26 Jun 2006, at 1:55 PM, Robert Karl Stonjek wrote:
>>>
>>>> Dawid,
>>>> on mine, there is only a rear fog lamp on the driver's side  (this  
>>>> is how it supposed to be according to the user's manual).   One  
>>>> click out activates the front fog lamps, the second click  
>>>> activates  the rear fog lamp.
>>>>
>>>> Robert
>>>>
>>>> > Hi Robert,
>>>> >
>>>> > I was able to trace the vacuum lines from the distribution system
>>>> > (it's purple, if anybody's interested),
>>>> > and indeed found that one of the lines going to the right  headlight
>>>> > was disconnected. I reconnected it ("borrowing" some of the
>>>> > rubber fitting over the hose by cutting a piece off one of the   
>>>> others
>>>> > that are longer than necessary) and now it works perfectly,
>>>> > now I can see further at night again, yay!
>>>> >
>>>> > On a related note, I also noticed that my rear fog lights do  
>>>> not  work
>>>> > (I've never tested them before). The bulbs are working (tested),
>>>> > the front fog lights are working, and there are no blown fuses.  
>>>> When
>>>> > I pull out the light switch (second notch, to turn them on) the
>>>> > little orange circle in the middle does light up.
>>>> >
>>>> > Any ideas?
>>>> >
>>>> > regards,
>>>> > Dawid
>>>> >
>>>> >
>>>> > P.S. This mailing list *so* beats either taking the car to a  dealer
>>>> > every time something small is wrong, or blundering around in  
>>>> the  dark
>>>> > not knowing what one is doing. Thank you so much!
>>>
>>>
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>>>
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>
>
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