Remove fork bridge.
With a 4 mm (0.16 in) dia. drill bit, drill approx. 5 mm (0.20 in) into non-removable screw (1).
Use an 8 mm (0.31 in) dia. drill bit to drill away the screw head.
Pull out the ignition switch/steering lock.
Unscrew and remove remainder of screw with stud bolt extractor.
Install steering lock with non-removable socket wrench insert, BMW No. 510531.
Tightening torque: Non-removable screws (micro-encapsulated) — 20 Nm
Removing and installing ignition/light switch
Remove screw (1).
Remove the ignition/light switch.
Installation is the reverse of the removal procedure.
Removing and installing lock barrel
Key in ON position/press in keeper (2) with a stiff wire or similar.
Pull out lock barrel with key.
Lubricate the new lock barrel with Shell Retinax A.
Insert the lock barrel with the key in the ON position.
Press lock barrel down until keeper engages.
Drilling out lock barrel
Use a 4-5 mm (0.16-0.20 in) dia. drill bit to drill the full length of the lock barrel.
Repeat with a drill bit of larger diameter until the lock barrel can be removed.