3L3 - Manual height adjustment for front seats [SIE - Seat adjustment] 3L5 - Electric seat adjustment for both front seats [SIE - Seat adjustment] 3L4 - Electric seat adjustment for both front seats, driver's seat with memory feature [SIE - Seat adjustment] 3PB - Left seat with electric seat adjustment,right seat manually height-adjustable [SIE - Seat adjustment] 3PE - Electric seat adjustment for right seat manual height adjustment for left seat [SIE - Seat adjustment]