I just purchased a '79 300D and a few things need to be done. Most importantly right now are the following:
1)The instrument panel lights, (speedo, clock etc.)do not work. The outside lights and both domes work but that's it. The knob on the cluster does nothing.
2)The heater doesn't seem to be working. The fan blows hot air on DEF. only, but nothing on Hi-Auto, Bi-Level or Lo-Auto.
3)Finally, I will need to change the window regulator on the driver's door, (motor runs, no window movement). I started to remove the door panel but it appears to be glued and padded with foam. Can I just yank it off and replace the glue and foam when I'm done? And does the little chrome piece around the inside door handle pop off?
Thank you,
Joe

Chek the dimmer switch on the back side of the inst. cluster, they are known to fail. On the door panel the little black piece inside of the release handle comes out and there is a bolt or two behind it..there are also big phillips bolts under the door pull arm. then pop off all the plastic rivets on the panel and lift up.
As for the Air Cond. Have it checked by a pro!!

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Benzmac:
ASE CERTIFIED MASTER AUTO TECHNICIAN
LEAD TECHNICIAN FOR 14 BAY FACILITY
MERCEDES SPECIALIST 8 YRS
PARTNER IN MERCEDESSHOP.COM