what alarme is it find the wiring digram and remove the fuse
Your alternator is shot.
Either a short to power or a bad fan switch.
A short will not drain the battery it will blow a fuse. It may be the battery has a dead cell, or some light is on draining the battery. It can also be a stuck relay.
When replacing battery, when servicing some part of the engine, or when the vehicle is not going to be started for over one month.(keeps the radio memory from draining battery)
try disconnecting the battery
Then either something is on draining the battery or the battery has a dead cell draining all the rest and must be replaced.
Probably, with that age of car, it's a wrecked battery. The only last 4-5 years, on average.
my 1992 golf does this... it was due to the new amp and stereo :) fit a spare in the boot solved my problem
A PARASITIC LOAD IS A SHORTED POSITIVE WIRE GOUNDING TO THE NUETRAL ON YOUR AUTOMOBILE BATTERY. A RAW WIRE IS DRAINING YOUR BATTERY. GOOD LUCK TRYING TO FIND IT.
There is an easy way to find out what is draining the battery on your car. Disconnect the positive or negative battery terminal. Not both. Connect a test light between the post of the battery to the cable end of the battery. If your car is draining the batt ery the light will show it. To find out where the drain is coming from just pull fuses until the light goes out. Then you will know what is draining the battery by the function of the fuse you just pulled. For example, if you pulled the fuse for "radio" and the light went out you would know the radio is drawing the current off your battery.
Something is on draining your battery overnight. Any light or any relay. It can also be your battery has a dead cell draining it overnight.