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 p
SEE MORE:
The valvetrain on the N52 introduced in 2006, used 5 mm valve stems on both
the intake and exhaust. To
increase durability, the exhaust valve stems were increased to 6 mm from 6/06
production.
All of the new NG6 engine have adopted the 6 mm valve stem for the exhaust, the
intake stem remains at
IMPORTANT: Conform with safety precautions !
Overview of topics:
Equipment
Expiry date of adhesive
Grinding and cleaning
Gluing coat
Hardening times
After treatment of bonding surfaces
Disposing of adhesive
1.0 Equipment
Emery paper
Cleaning agent: Isopropanol, acetone or spirit
Adhesiv