Hi I have a 1991 w124 300e with no dash board lights, or central locking plus the interior light does not work off the door pin switch. Is there another fuse box other than the under-bonnet one? an other ideas? thanks, Adrian
new member with electrical gremlins
- Thread starter chisbon
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JOB-BLACK-RAT
MB Enthusiast
Hello and wecome to the forum Adrian. Can anyone help our new member with his prob?
trapperjohn
MB Enthusiast
Hello and welcome chisbon.
There are two stalks which stick out of the clocks cluster. One sets your clock the other is a dimmer for the dash lights. Give the dimmer for the dash lights a couple of twirls left and right this sometimes wakes up the lights in the cluster.
The central locking could be a pump fault. This is located under the rear seats.
Not sure on the door pin switch.
The fuse box under the bonnet is the only one you have.
Good Luck.
There are two stalks which stick out of the clocks cluster. One sets your clock the other is a dimmer for the dash lights. Give the dimmer for the dash lights a couple of twirls left and right this sometimes wakes up the lights in the cluster.
The central locking could be a pump fault. This is located under the rear seats.
Not sure on the door pin switch.
The fuse box under the bonnet is the only one you have.
Good Luck.
grober
MB Master
The interior light has several settings governed by the sliding switch on the interior light. In one its switched by the door switches, in another it's permanently on , in another permanently off etc or the bulb is gone?
ps most of the units you mentioned are powered via fuse C [16amp] in the fuse box. Sometimes the fuse contacts get oxidised and need a little clean up.
ps most of the units you mentioned are powered via fuse C [16amp] in the fuse box. Sometimes the fuse contacts get oxidised and need a little clean up.
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OP
OP
chisbon
New Member
Trappers idea worked - I now have dash lights.
Central locking pump was disconnected, I plugged the wires back in - no go. there is no feed from fuse 16 (I cleaned up all fuses) which is live. Anyone know where the "special equipment connector" is as this is shown on wiring diagram between fuse and pump. Tx Adrian
Central locking pump was disconnected, I plugged the wires back in - no go. there is no feed from fuse 16 (I cleaned up all fuses) which is live. Anyone know where the "special equipment connector" is as this is shown on wiring diagram between fuse and pump. Tx Adrian
grober
MB Master
As I recall its behind the side trim [offside=accelerator side] in the drivers footwell?
bolide
MB Enthusiast
And darned difficult to find as it's under a bunch of cables
Central locking faults are normally a burnt-out pump. I'd whip the pump out first & test it or at least test for volts at the pump to confirm it's a wiring fault before tracing wires
FYI there is more than one type of pump and more than one type of pump electrical connector
Nick Froome
the independent Mercedes Estate specialists
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