BenzWorld Senior Member
Date registered: Oct 2006
Vehicle: 1965 220SE sedan (finnie) with 450SE conversion, 1964 220SE coupe project, 1966 300SE coupe
Location: Brisbane Australia
Mentioned: 1 Post(s)
Quoted: 32 Post(s)
Had a look at my loom this morning. Now you say that the front interior light works. Well, this runs off the same plug (on the back of the dash switch) as what the rear light does. The front light is the red and grey wires, and the rear is a blue wire. All three go up the RH A pillar, with the blue wire going down the RH roof rail to the rear light.
Take the cover off the rear interior light. You will see that the blue wire has a round plug on it so that the whole light can be removed easily. There is a brown earth wire from the light fitting screwed onto the roof metal. So check if you have power getting to the socket when it is meant to be on. If so, it may be the bulb or earth is no good.