2.5L SRE Engines: Installing
When replacing spark plugs, coat the ignition coils (ignition coil with power output stage) with G 052 141 A2. This will prevent the rubber hose from burning to the ceramic.
-- Screw in new spark plugs using Spark Plug Removal Tool 3122 B and tighten to 20 Nm.
-- Apply a thin bead of Spark Plug Grease G 052 141 A2 all around the sealing hose on the ignition coil -arrows-. The bead must be 1 to 2 mm thick.
-- Install the ignition coil with power output stage into the cylinder head. Align ignition coils to the designated cylinder head cover recesses.
-- Press the ignition coils with power output stage all the way onto the spark plugs until they audibly engage.
Make sure that the wire routing of the ignition coils with power output stages is correct.
-- Install engine cover. Refer to UPPER ENGINE COVER, REMOVING AND INSTALLING .