Work sequence

WARNING: This page is about a different car, the 2003 Audi RS 6. However, it is still accessible from the selected car via links, so may be relevant.

Engine removed, see ENGINE, REMOVING AND INSTALLING .

NOTE:

All cable ties which are opened or cut open on removal must be replaced in same position when installing.
Any heat insulation sleeves which are taken off when removing must be re-attached in same position when installing.

Place a drip tray underneath.
Drain engine oil.
Place engine/transmission assembly on work bench or engine/transmission floor. Support/secure engine and transmission with pieces of squared timber.
WARNING:
- Ensure that engine/transmission assembly rests safely to avoid risk of accident.
- Relocate engine lifting tackle 3033 as described below before performing any further work on engine. The center of gravity shifts after unbolting transmission.
Hook a second shackle 10-222 A12 onto front right engine lifting eye.
Attach lifting tackle 3033 to shackles 10-222 A12 and hook onto workshop crane VAS 6100, as shown in Fig 1.

Fig 1: Lifting Engine With Workshop Crane VAS 6100
Courtesy of AUDI OF AMERICA, INC.
Take up some of the weight of the engine with lifting tackle and workshop crane VAS 6100.
Unbolt bracket for ATF-line at upper part of oil pan (arrow).

Fig 2: Unbolting Bracket For ATF Line At Upper Part Of Oil Pan
Courtesy of AUDI OF AMERICA, INC.
Unplug connectors for left oxygen sensors before and after catalytic converter.
Move lines and hoses clear.
Unbolt left front exhaust pipe from turbocharger (arrows).

Fig 3: Removing Bolt Left Front Exhaust Pipe From Turbocharger

G02723088

Courtesy of AUDI OF AMERICA, INC.

Remove bolt -1- and loosen bolt -2- a few turns. See Fig 4.
Pull out guide tube -3- with oil dipstick.

Fig 4: Pulling Out Guide Tube With Oil Dipstick

G02723089

Courtesy of AUDI OF AMERICA, INC.

Unscrew bolt (arrow) and detach oil return line from upper section of sump.

Fig 5: Unscrewing Bolt And Detach Oil Return Line From Upper Section Of Sump

G02723090

Courtesy of AUDI OF AMERICA, INC.

Release hose clamp -2-. See Fig 6.
Unbolt temperature sensor of exhaust gas temperature sender -3-.
Unscrew nuts -1-.

Fig 6: Releasing Hose Clamp And Temperature Sensor Of Exhaust Gas Temperature Sender

G02723091

Courtesy of AUDI OF AMERICA, INC.

Unscrew nuts -1- to -12- and remove left exhaust manifold.

Fig 7: Removing Left Exhaust Manifold

G02723092

Courtesy of AUDI OF AMERICA, INC.

Unbolt Engine Speed (RPM) Sensor -G28- -item 1-.
Unplug electrical connector -2- from Speedometer Vehicle Speed Sensor (VSS) -G22-.

Fig 8: Unplugging Connector From Speedometer Vehicle Speed Sensor (VSS)
Courtesy of AUDI OF AMERICA, INC.
Unplug connectors for right oxygen sensors before and after catalytic converter.
Move wiring clear.
Unbolt front right exhaust pipe from turbocharger (arrows).

Fig 9: Unbolting Front Right Exhaust Pipe From Turbocharger

G02723094

Courtesy of AUDI OF AMERICA, INC.

Place oil drip tray underneath.
Remove oil filter.
Unscrew bolt (arrow) and detach oil return line from upper section of sump.

Fig 10: Detaching Oil Return Line From Upper Section Of Sump

G02723095

Courtesy of AUDI OF AMERICA, INC.

Disconnect vacuum hose -2-. See Fig 11.
Remove bolt -3-.
Release hose clamp -4-. See Fig 11.
Unbolt temperature sensor of exhaust gas temperature sender -1-.
Unscrew nuts -5-.

Fig 11: Disconnecting Vacuum Hose And Unbolting Temperature Sensor Of Exhaust Gas Temperature Sender

G02723096

Courtesy of AUDI OF AMERICA, INC.

Remove bolt (arrow) and remove pressure line from turbocharger.
NOTE: Depicted in illustration with exhaust manifold removed.

Fig 12: Removing Bolt And Remove Pressure Line From Turbocharger

G02723097

Courtesy of AUDI OF AMERICA, INC.

Unscrew nuts -1- to -12-. See Fig 13.

Fig 13: Locating Right Exhaust Manifold Nuts
Courtesy of AUDI OF AMERICA, INC.
Detach heat shield above differential cover on transmission
Pull turbocharger slightly downward and remove right exhaust manifold.
Tie up right turbocharger at engine.
Unscrew bolt (arrow).

Fig 14: Unscrewing Bolt

G02723099

Courtesy of AUDI OF AMERICA, INC.

Unscrew bolts -1- and -2-. See Fig 15.
Remove starter and detach wiring -3- and -4-.

Fig 15: Removing Starter And Detach Wiring

G02723100

Courtesy of AUDI OF AMERICA, INC.

Unscrew 6 torque converter bolts (arrows) through opening of removed starter (turn crankshaft 1/3 turn each time).
NOTE: To loosen torque converter bolts, counter-hold central bolt on crankshaft.

Fig 16: Locating Torque Converter Bolts

G02723101

Courtesy of AUDI OF AMERICA, INC.

Unscrew bottom engine/transmission connecting bolts, then top connecting bolts.
Working through opening on left side of bell-housing, push torque converter off drive plate and at the same time separate engine from transmission.
Secure torque converter in transmission to prevent it falling out.