How do I replace an ignition on my 98 328i

Removing and installing/replacing lock cylinder for steering wheel lock Car with ring antenna: Remove lower section of steering column trim. Using special tool 61 3 300, press ring antenna off locking cylinder. With ignition key, use workshop key for better accessibility, turn lock cylinder to "R" position = radio, windscreen wiper, fan. Caution: On vehicles with freewheel lock cylinder up to 10/95: twist lock cylinder back through 12°. Push special tool 32 3 110 into hole of lock cylinder an swivel handle forward by approx. 90°. Remove lock cylinder.

Recommend having either a shop or locksmith perform this repair.