The battery drain is probably the reason for the "rewiring" job -- very poorly done, I'm sure.

The way to find the "leak" is to connect a test lamp between the positive battery cable and the positive post. If the lamp lights, you have a drain large enough to cause trouble.

Do the same thing while removing and replacing fuses one at a time -- when the lamp goes out, you've got the circuit and can go from there.

Things no one thinks of are trunk lights staying on (either climb into the trunk and have someone close it, or pull the lamp -- safer!) or the glove box light staying on because the switch is mis-adjusted. Pull the bulb on that one to check.

You can also have a stuck switch somewhere or an aftermarket radio amp that stays on all the time, too.

A high resistance ground on the "hot" side of the fuse box is also possible if none of the fused circuits is the problem.

Peter

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1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!