Spark Plugs — 3.5L GTDI

Removal and Installation

 WARNING: Before beginning any service procedure in this section, refer to Safety Warnings in Section 100-00 . Failure to follow this instruction may result in serious personal injury.

NOTE: Removal steps in this procedure may contain installation details.

1. Remove the 6 ignition coil-on-plugs, refer to Ignition Coil-On-Plug — 3.5L GTDI .

2. NOTICE: Only use hand tools when removing or installing the spark plugs, or damage may occur to the cylinder head or spark plug.

   NOTICE: The spark plug procedure must be followed exactly or damage to the cylinder head and spark plug will result.

   NOTICE: Do not remove the spark plugs when the engine is hot or cold soaked. Spark plug thread or cylinder head damage can occur. Make sure the engine is warm (hand touch after cooling down) prior to spark plug removal.

   NOTICE: The spark plug must be securely held in an assembly aid or tool to prevent the spark plug from falling into the spark plug well which may damage the spark plug or the cylinder head.

   NOTICE: If a spark plug is dropped, internal damage may result and the spark plug must be discarded. The use of a damaged spark plug may cause engine damage to occur.

   NOTE: Use compressed air to remove any foreign material in the spark plug well before removing the spark plugs.

   • Tighten to 15 Nm (133 lb-in).

Installation

1. To install, reverse the removal procedure.