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Home >> Audi >> 2016 >> S5 Prestige, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 575 (Maintenance Procedures (Sedan)) >> 03 Maintenance, Diagnosis >> Maintenance Procedures >> Spark Plugs, Replacing >> 8-Cylinder 4.2L FSI Gasoline Engine >> Removing And Installing

Removing And Installing

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Removing Cylinder Bank 1 (Right) 

-- Remove the engine cover. Refer to ENGINE COVER, REMOVING .

-- Remove the air filter housing. Refer to LOWER AIR FILTER HOUSING .

-- Remove the nuts -arrows- and then remove the air filter housing bracket -1-.

Fig 1: Identifying Air Filter Housing Bracket Components
GWWA24-10946Courtesy of AUDI OF AMERICA, LLC

-- Remove the screws -1- and -2- from the connector strip.

Fig 2: Identifying Bolts & Ignition Coils Electrical Harness Connectors
GWWA15-10235Courtesy of AUDI OF AMERICA, LLC

-- Push the connector toward the ignition coil, open the lock by hand and connect the connector to the ignition coils.

-- Move the wiring harness slightly down.

Removing Cylinder Bank 2 (Left) 

-- Remove the air filter housing. Refer to LOWER AIR FILTER HOUSING .

-- Remove the nuts -arrows- and then remove the air filter housing bracket -1-.

Fig 3: Air Filter Housing Bracket -1-
GWWA24-11304Courtesy of AUDI OF AMERICA, LLC

-- Remove the screws -1- and -2- from the connector strip.

Fig 4: Ignition Coil Wiring Harness
GWWA15-11575Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the connector -arrow-.

-- Push the connector toward the ignition coil, open the lock by hand and connect the connector to the ignition coils.

-- Move the wiring harness slightly down.

Continuation for Both Sides 

-- Position the Ignition Coil Puller T40039 only on the topmost thick rib -arrow- and pull the ignition coils one after the other off the spark plugs.

Fig 5: Identifying Ignition Coil Puller - T40039-
GWWN01-10794Courtesy of AUDI OF AMERICA, LLC

-- Remove the spark plugs with Spark Plug Removal Tool VAS 3122B.

Installing 

-- Use the Spark Plug Removal Tool VAS 3122B to tighten the new ignition coils to specification.

-- Lubricate the ignition coils. Refer to IGNITION COIL, LUBRICATING .

-- Align all the ignition coils one after the other and insert them loosely into the spark plug shaft.

-- Press the ignition coils evenly onto the spark plugs by hand. Do not hit them.

-- Connect the connector to the ignition coil until it clicks into place.

-- Tighten the screws to the tightening specification.

-- Installation is the reverse of removal.

-- Install engine cover. Refer to ENGINE COVER, REMOVING .

Tightening specification Nm
Spark plugs in cylinder head 30
Connector strip bolts 5
Air filter housing bracket 9