REPLACING ALL SPARK PLUGS (N42, N40, N46, N45, N52, N52K, N51)
Special tools required:
12 1 171
12 1 200.
Necessary preliminary tasks:
Switch off ignition
Remove ignition coils.
Unscrew spark plugs with special tool 12 1 171.
Installation:
Tighten down spark plugs with special tool 12 1 171a
Special tools required:
31 3 032
33 3 322
Necessary preliminary tasks:
Check wheel control joints of tension struts while installed, replace
tension struts if necessary.
Remove tension struts.
Using a press and special tools 33 3 322 and 31 3 032 , press rubber mount
out of tension strut