MKZ AWD V6-3.5L (2008)
RH Side
Removal
LH side
1. Disconnect the crankcase vent tube quick connect coupling from the valve cover fitting and position aside.
RH side
2. NOTE: The upper intake manifold must be removed to access the RH spark plugs.
Remove the upper intake manifold.
Both sides
3. Disconnect the 6 ignition coil-on-plug electrical connectors.
4. NOTE: When removing the ignition coil-on-plugs, a slight twisting motion will break the seal and ease removal.
Remove the 6 bolts and the 6 ignition coil-on-plugs.
5. CAUTION: Only use hand tools when removing or installing the spark plugs, or damage may occur to the cylinder head or spark plug.
NOTE: Use compressed air to remove any foreign material in the spark plug well before removing the spark plugs.
Remove the 6 spark plugs.
