51 21 147 Replacing locks for simultaneous closing with CAS control unit

Necessary tasks: 

• Replace complete lock cylinder for left or right front door  . 
• Replace insert for radio control key  . See 66 12 100 REMOVING AND INSTALLING/REPLACING SLIDE-IN UNIT FOR RADIO CONTROL KEY .
• Replace control unit for Car Access System  . See 61 35 015 REMOVING AND INSTALLING (REPLACING) CONTROL UNIT FOR CAR ACCESS SYSTEM .

  Except E81, E87, E91: 

• Replace lock for rear lid   .

  Except E81, E82, E87 from MY 03/2007, E88: 

• Replace lock for right glovebox  .