I have been having some fun tracking down a black hole of a current drain that has toasted a battery of mine.

Symptoms
With the ammeter in series between the + pole of the (charged) battery and the distribution bus, the current draw is 160mA (with the car not running). Removing the fuses one at a time will only drop the draw down to 140mA or so (can't remember which fuse - I don't think it really matters).

So, I checked which of the wires [IMG]coming off the power distribution bus have current flowing....and low and behold, it is the small red wire shown on the photo as disconnected with the cracked black loom. (If the photo doesnt' make it, it is the top wire on the middle of the three terminals of the power distribution buss. The wire then heads down towards the firewall under the battery.) The resistance of this connection to ground is 2kOhms for what it is worth.

My wire diagrams don't indicate what this wire leads to - or I can't read the diagrams - which is a possibility.

ANYONE KNOW WHAT THIS WIRE DOES? EGR? Something unneeded?

The car seems to start and run normally with it disconnected. And no more 160mA drain.

All this is from an 84 300TD, with 260kMiles and a new starter and battery.

[IMG]DVC00264.JPG[/IMG]

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84 300TD - 235k - Farbe "Surfblau" bought at 213k
87 300SDL - 131k - Farbe "PimpGold" bought at 115k
00 Klepper Faltboot Expedition Double