Engine, Installing

WARNING: This page is about a different car, the 2015 Audi A8 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

Special tools and workshop equipment required

Torque Wrench 1332 Insert - Ring Wrench - 16mmVAG1332/14
Crankshaft SocketT40058
Clutch Module Transportation LockT40170

Tightening Specifications

NOTE:

The tightening specifications apply only to lightly greased, oiled, phosphated or blackened nuts and bolts.

Additional lubricant such as engine or transmission oil may be used, but do not use graphite lubricant.

Do not use any parts that have had the lubrication removed.

Tightening specification tolerance: ±15%.

Component		Nm
Bolts and nuts	M6	9
	M7	15
	M8	20
	M10	40
	M12	65

Subframe mount, refer to OVERVIEW - SUBFRAME MOUNT .
Engine to transmission, refer to TRANSMISSION, REMOVING AND INSTALLING .

Procedure

NOTE:

Replace the bolts that were tightened with an additional turn.

Replace the self-locking nuts and bolts, sealing rings, seals and O-rings after removing.

Only remove the plugs or caps after installing the lines.

The hose connections as well as the air guide pipes and hoses must be free of oil and grease before installing.

Secure all hose connections with hose clamps .

To mount the air guide hoses on their connectors securely, spray the bolts on the used clamps with rust remover before installing.

When installing, bring all cable ties back to same positions.

-- Clean the threaded holes in the cylinder block for connecting the engine and transmission using a thread tap before installing the transmission.

-- Install the engine support and engine mount, refer to OVERVIEW - SUBFRAME MOUNT .

-- The following preparations must be made before connecting the engine and transmission:

Fig 1: Locating Hole Next To Notch

Courtesy of AUDI OF AMERICA, LLC

-- Turn the torque converter so that hole next to the notch -arrow- is visible in the lower cut-out in the transmission housing as illustrated.

NOTE:

There is only 1 notch on the circumference; rotate the torque converter as needed.

-- Insert the Clutch Module Transportation Lock T40170 in the transmission housing from below and secure it on the flange shaft -1-.

Fig 2: Identifying Transportation Lock T40170

Courtesy of AUDI OF AMERICA, LLC

-- Bring the starter and the locking piece -1- into the installed position:

Fig 3: Identifying Locking Piece

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-- When jointing the engine and subframe, hold the ATF lines in their installation position.

-- Check if the alignment sleeves -A- for centering the engine/transmission are in the cylinder block and insert them if they are not.

Fig 4: Identifying Bolts

Courtesy of AUDI OF AMERICA, LLC

-- Inspect the aluminum bolts used to connect the engine to the transmission to see if they can be used again and mark them, if necessary, refer to TRANSMISSION, REMOVING AND INSTALLING .

-- Position the transmission on the engine. Be careful of the starter.

-- Tighten bolts -3 to 11-.

The locking piece -1- must be installed correctly before installing the starter -arrows-.

Fig 5: Identifying Locking Piece
Courtesy of AUDI OF AMERICA, LLC

NOTE:

If you have difficulty installing the starter, apply a small amount of lubricant to the locking ring.

-- Install the starter, refer to STARTER .

-- Remove the Clutch Module Transportation Lock T40170.

NOTE:

The following step is necessary to make sure the torque converter rests on the drive plate evenly and is not tilted.

-- Press the torque converter -2- against the drive plate -3- slightly in the direction of the -arrow- using an assembly lever -1-.

Fig 6: Pressing Torque Converter

Courtesy of AUDI OF AMERICA, LLC

-- Install the first bolt -arrow- and tighten by hand (2 Nm).

Fig 7: Identifying Clutch Module First Bolt Installation Location

Courtesy of AUDI OF AMERICA, LLC

NOTE:

Use the Torque Wrench 1332 Insert - Ring Wrench - 16mm VAG1332/14 to tighten the bolts.

-- Insert the Crankshaft Socket T40058 guide pins as follows:

Fig 8: Identifying Guide Pin And Adapter T40058

Courtesy of AUDI OF AMERICA, LLC

The large diameter -arrow 1- faces the engine.
The small diameter -arrow 2- faces the adapter.

-- Continue turning the crankshaft 180° in the direction of the engine rotation using the Crankshaft Socket T40058 -arrow-.

Fig 9: Identifying Counter Hold Crankshaft Using Socket T40058

Courtesy of AUDI OF AMERICA, LLC

-- Tighten the bolts that are accessible in this position to the tightening specification, refer to TORQUE CONVERTER .

-- Turn the crankshaft 60° farther and tighten the remaining five bolts to the tightening specification, refer to TORQUE CONVERTER .

-- Install the supercharger ribbed belt tensioner, refer to RIBBED BELT TENSIONER, REMOVING AND INSTALLING, SUPERCHARGER RIBBED BELT .

-- Tighten the drive axles on the transmission flange shafts, refer to Drive Axle .

-- Install the ATF cooler, refer to ATF CIRCUIT .

-- Install the right catalytic converter, refer to OVERVIEW - MUFFLER .

-- Install the ATF lines, refer to ATF CIRCUIT .

-- Install the left catalytic converter, refer to OVERVIEW - MUFFLER .

-- Lift the engine/transmission assembly with the Scissor Lift Table VAS6131A.

-- Align the subframe and tunnel crossmember using the marks made on the longitudinal members during removal.

-- Tighten the tunnel crossmember bolts, refer to ASSEMBLY MOUNTS .

-- Tighten the subframe bolts only to the tightening specifications, do not tighten them further (tighten the bolts only after axle alignment), refer to Subframe .

WARNING:

Risk of accident due to loose connections.

If the bolts in the subframe are not tightened to final torque, vehicle must not be driven.

The rest of the installation is performed in reverse order of removal, noting the following:

-- Install the emergency release cable, refer to SELECTOR MECHANISM .

-- Install the driveshaft, refer to DRIVESHAFT, REMOVING FROM REAR FINAL DRIVE AND INSTALLING or DRIVESHAFT, REMOVING FROM REAR FINAL DRIVE AND INSTALLING or .

-- Install the front muffler, refer to FRONT MUFFLER, REMOVING AND INSTALLING .

-- Attach the steering intermediate shaft to the steering gear, refer to Steering Column .

-- Install the upper control arm and suspension strut, refer to Suspension Strut And Upper Control Arm .

-- Install the subframe crossbrace and stabilizer bar, refer to Subframe .

-- Install the brake caliper, refer to FRONT BRAKES .

-- Attach the positive cables to the positive terminal, refer to BATTERY .

-- Install the lower longitudinal member, refer to NOISE INSULATION .

-- Install the air filter housing, refer to AIR FILTER HOUSING, REMOVING AND INSTALLING .

-- Install the air guide pipes, refer to OVERVIEW - AIR FILTER HOUSING .

-- Install the wires, fuse panel, and engine compartment E-box cover, refer to [For engine(s) CDRA,CTUB,CEUA,CGTA,CPNA,CEJA] Relay Panels, Fuse Panels and E-Boxes and appropriate SYSTEM WIRING DIAGRAMS information.

-- Install the A/C compressor, refer to AIR CONDITIONING (A/C) COMPRESSOR Air Conditioning (A/C) Compressor Air Distribution Housing Doors and Partitions Assembly Overview .

-- Install the ribbed belt, refer to RIBBED BELT, REMOVING AND INSTALLING, RIBBED BELT FOR AUXILIARY COMPONENTS .

-- Install the refrigerant lines, refer to REFRIGERANT CIRCUIT .

-- Install the lock carrier cover, refer to FRONT BUMPER .

-- Follow all steps after connecting the battery, refer to BATTERY BATTERY .

-- Install the tower brace, refer to Suspension Strut And Upper Control Arm .

-- Install the fuel supply line, refer to HIGH PRESSURE PIPE, REMOVING AND INSTALLING .

-- Install the upper longitudinal member, refer to NOISE INSULATION .

-- Install the plenum chamber cover, refer to BULKHEAD .

-- Install the engine cover, refer to ENGINE COVER, REMOVING AND INSTALLING .

CAUTION:

There is a risk of destroying control modules with excess voltage.