Withdrawal
Disconnect the ground wire from the battery.
Attention: When the battery is disconnected, the information in the electronic memory devices, such as the engine trouble memory or the radio security code memory, is erased. Disconnect the battery only when the ignition is switched off, so as not to damage the fuel injection system control unit. When disconnecting the battery, follow the instructions in sections "Radio" And "Removing and installing the battery".
Remove the air filter cover and air mass meter.
Unload and remove the V-belt.
Remove the protective cover of the generator connection block.
Remove wires from terminal B+ (terminal 30) and D+ (terminal 61). Unscrew ground wire (terminal 31).
Models 316i/318i since September 1993: Remove the bypass roller.
Models 3l6i/318i manufactured since September 1993: Loosen the alternator mounting bolts, pull out the alternator.
Models 316i/318i before August 1993: Loosen the alternator mounting bolts, pull out the alternator.
Installation
Check alternator suspension bushings and replace if necessary.
Insert alternator and secure with screws.
Connect electrical wires to generator: B+ (terminal 30) and D+ (terminal 61) and ground wire (terminal 31).
Models 316i/318i from September 1993: Screw on the bypass roller.
Fit and tighten the V-belt.
Connect ground wire to battery.
Attention: Connect the battery with the ignition off, otherwise the electronic control unit of the injection device may fail.
Set clock time.
Set radio security code, see section "Setting the radio code".