Battery drain through fuse 20

[dwlawson]

Came back from a 12 day trip and the battery was totally flat. Checked it out and found that fuse 20 is passing 130mA with car switched off and locked. According to Bentley this fuse feeds clock and bits of the heating system, although it must feed more than that because engine won't turn with fuse removed. I've eliminated clock and water valve but was wondering if anyone had experienced same fault before I start seeking out the more obscure items.
It's a 1996 525tds touring.

[netmgr]

Fuse 20 runs the engine management unit - on some cars, not sure what yours is

have a look at this

http://www.netmgr.co.uk/fuses.htm

darren

[winfred]

when i trace a problem like this i look at a wiring diagram and see what all is actually on that circuit and start unplugging stuff looking for the draw to drop