I have a problem with the battery charge being depleted to a point where the car won't start - the battery voltage drops to 10 volts or less and nothing happens when the key is turned to engage the starter, although everything else still operates.

I have found that when pulling out the 7.5A fuse under the back seat that is in the power windows and central locking circuit, the current draw on the battery (with everything off) drops from 240ma to 20ma. These things have been operating fine.

The alarm system intermittently beeps while driving, flashing the red LED on the dash grille. Does this indicate a fault in the locking system and could these two things be related?

Any help as to were to start loocing for the fault would be greatly appreciated!

Colin,
Melbourne Australia
1990 535is manual.