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Home >> Audi >> 2020 >> S4 Prestige >> Repair and Diagnosis >> External Pages >> Different car >> Section 25 (Cylinder Head, VALVETRAIN [CYMC,CYRB,CYRC,CWPB,DAXB,DAXC,CJEB,CJED,CJEE,CNCD,CNCE,CUHA,CUJA,CNCB,CUHB,DAYB,CYGA,CYNB,CYPA,CYPB,CYYA,CVJA,DDWA,DJYA,DKWA,DNTA,DKNA,DLHA,DLHB,DMFA,DKWB,DLGA]) >> 15 Cylinder Head, VALVETRAIN >> Chain Drive >> Bearing Bracket, Removing And Installing >> Removing

Bearing Bracket, Removing And Installing: Removing

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-- Remove the upper timing chain cover. Refer to UPPER TIMING CHAIN COVER, REMOVING AND INSTALLING .

TIP:

The control valves have left-hand thread.

-- Remove the left and right control valves using the Assembly Tool -1- in the direction of -arrow-.

Fig 1: Removing Control Valve
GWWA15-12119Courtesy of AUDI OF AMERICA, LLC

Depending on the version of the control valve use one of the listed tools:

-- To do so counterhold on the vibration damper with the : T40263  , : T40314  and a 24 mm Socket.

GWWA13-11145Courtesy of AUDI OF AMERICA, LLC

-- Remove the bolts -arrows-.

Fig 2: Identifying Bolts
GWWA15-11240Courtesy of AUDI OF AMERICA, LLC

-- Remove the bearing mount.

-- Remove the plug -arrow-.

Fig 3: Identifying Plug
GWWA15-10447Courtesy of AUDI OF AMERICA, LLC

-- Remove the bolts -arrows-.

Fig 4: Identifying Bolts
GWWA15-11390Courtesy of AUDI OF AMERICA, LLC

-- Remove the bolt -arrow-.

Fig 5: Identifying Bolt
GWWA15-11401Courtesy of AUDI OF AMERICA, LLC

-- Install the : T40243  on the cylinder head -lower arrows-.

Fig 6: Identifying Version 2
GWWA15-11393Courtesy of AUDI OF AMERICA, LLC

-- Press the chain tensioner circlip -1- together and hold it.

-- Slowly press and hold the : T40243  in direction of -arrow-. This will push back the chain tensioner.

TIP:

The chain tensioner is lubricated with oil and can only be pushed back slowly by applying constant pressure.

-- Lock the chain tensioner with the : T40267  .

Fig 7: Securing Chain Tensioner
GWWA15-11394Courtesy of AUDI OF AMERICA, LLC

-- Remove the : T40243  .