Engine, Removing: Procedure
The engine is removed downward together with the transmission.
During installation, all cable ties must be installed at the same location.
When installing, secure all heat shield boots back in the same positions.
-- Remove the cap -1- in direction of -arrow- from the coolant reservoir -2-.
- The coolant system is under pressure when the engine is warm.
- Cover the coolant reservoir cap with a cloth and then open it slowly to release the pressure.
-- Remove the engine cover, refer to REMOVING .
-- Remove the air filter, refer to AIR FILTER HOUSING .
-- Remove the battery, refer to BATTERY .
-- Remove the battery tray, refer to BATTERY TRAY .
-- Remove Engine Control Module (ECM), refer to ENGINE CONTROL MODULE -J623- .
-- If equipped remove the vacuum hose -arrow-.
-- Remove the hose -1- for the crankcase ventilation on the air guide hose.
-- To do this press the release button.
-- Release the connector from the air guide hose and remove.
-- Unclip the wires on the intake tube.
-- Free up the vacuum hoses -arrows- on the air guide pipe.
-- Remove bolt -2- and tilt the air guide hose with the intake tube backward and remove from the turbocharger.
-- Open the retainer -arrow- and remove the vacuum hose -1-.
-- Free up the wires from the connectors -1- to -3-.
-- Free up the wiring harness from the cylinder head cover.
-- Disconnect and remove the connector -1- (attached behind the bracket).
-- Unclip the connector -1-.
-- Guide the lines out of the brackets -2- on the plenum chamber bulkhead and turbocharger.
-- Unlock and disconnect the connector -2- from the Wastegate Bypass Regulator Valve -N75- -1-.
-- Remove the nuts -arrows-.
-- Set the Wastegate Bypass Regulator Valve -N75- -1- with vacuum lines on the engine.
-- Remove the NOx Sensor -G295- control module and place on the engine with the lines, refer to NOx SENSOR -G295- .
-- Release the connector from the Reducing Agent Injector -N474- from the plenum chamber bulkhead and remove.
-- Free up the wiring harness.
-- Remove the metering line -2-.
-- To remove the clip push the wire connection -1- together as shown in the direction of the -arrow 1-.
-- Remove the delivery line in the direction of arrow -2- without special equipment and without sharply pulling on it.
-- Seal all the open lines and connections with clean plugs from the Engine Bung Set VAS 6122.
-- Remove the E-box cover inside the engine compartment -arrows-.
-- Disconnect the connectors -1-.
-- Unclip the connector -1- and the locking mechanism -arrows- and open the cable guide -2-.
-- Remove the ground connection -3- and free up the wiring harness.
-- Unclip all wires from the cable guide.
-- Disconnect the connector right -arrow-.
-- Remove the wiring harness from the bracket -1-.
-- Disconnect and remove the engine wiring connector from the engine control module, refer to ENGINE CONTROL MODULE -J623- .
-- Loosen the nuts -arrows- and disconnect the battery positive cables -1- from the E-box -2-.
-- Disconnect all other connectors between the starter, transmission and body.
-- Free up the wires.
-- Disconnect and remove the connector for the coolant reservoir -2-.
-- Unclip the wiring harness from the coolant reservoir.
-- Remove the bolts -3- and the coolant expansion tank -2-.
-- Unclip the lines -1- and free up.
-- Lay the coolant reservoir -2- on the engine.
-- Remove the fuel filter and lay with wires connected on the engine, refer to FUEL SUPPLY .
-- Open the couplings -A- and -B- and remove the fuel lines. Open the couplings, refer to FUEL SUPPLY .
Vehicles With A Manual Transmission
-- Remove the selector mechanism from the transmission, refer to SHIFT MECHANISM .
-- Remove the hose/line assembly or plastic hose from the clutch slave cylinder, refer to REMOVING .
-- Disconnect the connector from the Park/Neutral Position Switch -E17- -2-.
-- Disengage and disconnect connector -2-.
-- Free up the wiring harness for both connectors.
-- Remove the selector mechanism from the transmission, refer to SHIFT MECHANISM .
Continuation For All Vehicles
-- Remove the front wheels, refer to REMOVAL AND INSTALLATION .
-- Remove the noise insulation, refer to EXTERIOR EQUIPMENT .
-- Remove the right and left front wheel housing liners, refer to REMOVING .
-- Remove the subframe, refer to FRONT SUSPENSION .
-- Remove the right and left driveshaft, refer to FRONT SUSPENSION .
-- Remove the right driveshaft heat shield, refer to FRONT SUSPENSION .
-- Remove the front exhaust pipe, refer to FRONT EXHAUST PIPE .
-- Remove the fan shroud, refer to FAN SHROUD WITH COOLANT FAN .
-- Unclip the wiring harness from the Engine Preheating Element -Z97- on the bumper cover and the bracket, refer to OVERVIEW - ENGINE PRE-WARMER .
-- Lay the lines on the transmission.
-- Place the Shop Crane - Drip Tray VAS 6208 underneath.
-- Drain the coolant, refer to COOLANT, DRAINING AND FILLING .
-- Lift the clamps -arrows-, remove the coolant hoses from the heater heat exchanger.
-- Remove the radiator, refer to RADIATOR .
-- Loosen the bolts -arrows- on the engine mount -1- approximately 2 turns.
Vehicles with Triple Transmission Screw Connection
-- Loosen the bolts -arrows- on the transmission mount approximately 2 turns.
Vehicles with Double Transmission Screw Connection
-- Loosen the bolts -arrows- on the transmission mount approximately 2 turns.
Vehicles With Air Conditioning (A/C)
-- Remove the ribbed belt, refer to RIBBED BELT, REMOVING AND INSTALLING .
-- Disconnect the connector -1- on the A/C Compressor Regulator Valve -N280-.
- Do not stretch, kink or bend refrigerant lines and hoses.
-- Remove the bolts -arrows-.
- Do not open the air conditioning refrigerant circuit.
-- Remove the A/C compressor from the bracket with the refrigerant hoses attached and tie up to the right side.
Continuation For All Vehicles:
-- Disconnect the connector -4-.
-- Remove the nut -2- and the bolts -3-.
-- Push the coolant pipe -1- and Charge Air Cooling Pump -V188- -5- to the side.
-- Loosen the fasteners -arrows- and remove the noise insulation -1-.
-- Fasten the Engine Support T10497 on the cylinder block with the pins T10497/1 and the bolt -1- to approximately 20 Nm.
-- Place the Engine/Gearbox Jack VAG 1383A or VAS 6931 on the Engine Support T10497.
-- Slightly lift the engine/transmission subassembly.
-- Remove the bolts -arrows- for the engine mount -1- completely.
Vehicles with Triple Transmission Screw Connection
-- Remove the transmission mount bolts -arrows- completely.
Vehicles with Double Transmission Screw Connection
-- Remove the transmission mount bolts -arrows- completely.
- Make sure all the vacuum lines or electric wires between the engine, the transmission and the body are loosened.
- Carefully lower and guide the engine/transmission subassembly out of the engine compartment.
-- Drain the engine/transmission assembly.