W123 300D dome light wiring - HELP
Thread Starter
Newbie
Joined: Aug 2014
Posts: 10
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300D Turbo 1984
W123 300D dome light wiring - HELP
My dome light turns 'on' when front passenger door is open but will not turn
'on' when driver door is open.
The switch from the driver door has tested okay by hooking this on passenger side.
I suspect a grounding fault, and if it is, I wouldn't know how to fix it.
Does anybody know the solution to this? Will appreciate any suggestions.
'on' when driver door is open.
The switch from the driver door has tested okay by hooking this on passenger side.
I suspect a grounding fault, and if it is, I wouldn't know how to fix it.
Does anybody know the solution to this? Will appreciate any suggestions.
Junior Member
Joined: Sep 2014
Posts: 45
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200D w123
Hello kind sir,
I would advise the following few things. Please do not feel insulted if the following sounds to simple I don't know how skilled you are.
Check the connectors of the wires these things are a main source of electrical failure since small wire diameters tend to corrode trough there.
Second of all if the wire passes trough any hinges or moving parts check there it is not uncommon that the movement of pedals sometimes crushes a wire that has gotten loose.
If none of the above is true you should just follow the wire by hand and see if it isn't broken anywhere (it also tends to rub open against any metal it is exposed to like holes it passes trough that are missing the rubbers.
anyway good luck and please let us know where the fault was
I would advise the following few things. Please do not feel insulted if the following sounds to simple I don't know how skilled you are.
Check the connectors of the wires these things are a main source of electrical failure since small wire diameters tend to corrode trough there.
Second of all if the wire passes trough any hinges or moving parts check there it is not uncommon that the movement of pedals sometimes crushes a wire that has gotten loose.
If none of the above is true you should just follow the wire by hand and see if it isn't broken anywhere (it also tends to rub open against any metal it is exposed to like holes it passes trough that are missing the rubbers.
anyway good luck and please let us know where the fault was
Thread Starter
Newbie
Joined: Aug 2014
Posts: 10
Likes: 1
300D Turbo 1984
Mercedes w123..... I appreciate your suggestions. Once weather here
warms up, I will get the steering undercover out and trace the wire and follow it
to the end. SOmeone from another forum had suggested that the end of this wire
might have been unplugged accidentally.
I hope it is nothing more than that and will let you know what I uncover.
Thanks
warms up, I will get the steering undercover out and trace the wire and follow it
to the end. SOmeone from another forum had suggested that the end of this wire
might have been unplugged accidentally.
I hope it is nothing more than that and will let you know what I uncover.
Thanks
Junior Member
Joined: Sep 2014
Posts: 39
Likes: 0
From: central VA
1983 300 SD/1984 300 CD
Hello kind sir,
I would advise the following few things. Please do not feel insulted if the following sounds to simple I don't know how skilled you are.
Check the connectors of the wires these things are a main source of electrical failure since small wire diameters tend to corrode trough there.
Second of all if the wire passes trough any hinges or moving parts check there it is not uncommon that the movement of pedals sometimes crushes a wire that has gotten loose.
If none of the above is true you should just follow the wire by hand and see if it isn't broken anywhere (it also tends to rub open against any metal it is exposed to like holes it passes trough that are missing the rubbers.
anyway good luck and please let us know where the fault was
I would advise the following few things. Please do not feel insulted if the following sounds to simple I don't know how skilled you are.
Check the connectors of the wires these things are a main source of electrical failure since small wire diameters tend to corrode trough there.
Second of all if the wire passes trough any hinges or moving parts check there it is not uncommon that the movement of pedals sometimes crushes a wire that has gotten loose.
If none of the above is true you should just follow the wire by hand and see if it isn't broken anywhere (it also tends to rub open against any metal it is exposed to like holes it passes trough that are missing the rubbers.
anyway good luck and please let us know where the fault was
As mentioned, keep us posted.
Thread Starter
Newbie
Joined: Aug 2014
Posts: 10
Likes: 1
300D Turbo 1984
Can't wait for warmer weather to work on this. I am almost convinced the problem will
be with wiring between the door switch and wherever its end connects to which likely could be the buzzer box.
I have already removed the door 'push button' switch and moved it to the passenger side just to test if the switch is not broken. The switch is okay and so the problem lies with
the lead wires.
Appreciate your suggestion and will check if the wire just didn't make it up the pillar to the
light switch. Thanks, will report my progress.
be with wiring between the door switch and wherever its end connects to which likely could be the buzzer box.
I have already removed the door 'push button' switch and moved it to the passenger side just to test if the switch is not broken. The switch is okay and so the problem lies with
the lead wires.
Appreciate your suggestion and will check if the wire just didn't make it up the pillar to the
light switch. Thanks, will report my progress.
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