I have a 1994 E320 wagon that has developed an electrical drain the last month or so. It will drain the battery in 3-4 hours so it is a severe drain (battery about 2 years old, and holds strong charge). I keep the negative disconnected unless I need to drive it. Since it is such a strong drain I am guessing substantial power must be flowing through the fuse panel.

With the negative battery terminal disconnected I have complete circuit (test light glows brightly) from negative battery terminal when touching the following fuses:

C - rear roof light, trunk light, rear door lock sys, seat back arrest, central locking, door lights, reading lamps, aut antenna

9 - diag term 6, hazard, clock, front roof light, radio, vanity mirror light, relay comofrt circuit term 86

10 - heatable rear window

11 - vacant (has 16 amp fuse installed)

12 - vacant (has 16 amp fuse installed)

D - Auxiliary fan

G - window lift front (discharges, test light bright, but drains away to barely lit)

13 - low beam left (discharges, test light bright, and fades quickly to completely off)

Anyone suggestions on where to start? Thanks!