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1986 300e sedan 1994 e320 wagon
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9 Posts
Discussion Starter #1
no voltage for the foglight at the 4 pin connector on the headlight assy. The 4 wire cable runs up toward the battery and then? I don't want to take the car apart, where to next? Fuse is good, left side works. any idea please. thanks- Kelly
 

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89 300E; 00 E320
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2,515 Posts
That grey/green wire that you're following goes to the fuse/relay box and connects to N7. That fog circuit is grounded at W2 which needs to be clean and tight.
Couldn't hurt to put another 8 amp fuse in #4.

Wiring Diagram:

-Fog 124

N7 Exterior lamp failure monitoring unit Rear of fuse box, position K

W2 Ground, at right headlamp unit Lower right front of engine compartment 230-1

Fuse/Relay Box 102
 

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W124-250D-1986; W245-B180CDI-2007
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52 Posts
color wiring diagram ...
#54 - left head light
#55 - right head light
#53 - N7-lighting relay/Exterior lamp failure monitoring unit
#51 - head light switch
#52 - lever to switch the lights on the steering wheel
#2 - ignition key



I would also check for bad contact between the cables ......
 

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1986 300e sedan 1994 e320 wagon
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9 Posts
Discussion Starter #4
Many thanks! Fixed. Turned out to be a bad connection where the k1 lamp sensor plugs in.
 

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Registered
1986 300e sedan 1994 e320 wagon
Joined
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9 Posts
Discussion Starter #5
N7-lighting relay/Exterior lamp failure monitoring unit
meant to say where this plugs in Fuse relay box...
 
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