1. Open the retaining band (1a) and disconnect the flexible return pipe (1b) to the power assisted steering fluid reservoir from the duplex pipes (1c), then leave the system to drain.

1. Disconnect the connections for the engine oil level sensor (1a) and the air conditioning compressor supply (1b).

	Description	Connector
1a	Engine oil level sensor	K032

	Description	Connector
1b	Air conditioning compressor engagement electro-magnet	L020

1. Undo the connectors on the power assisted steering pump for the fluid return (1a) and supply (1b) pipes, keeping the copper washers underneath.

1. Working on the wheel arch side, undo the bolt (1a) fixing the power assisted steering pump reinforcement bracket (1b).

1. Working in the engine compartment, undo the two bolts (1a) fixing the pump (1b) to the mounting (1c) and remove the pump.

Refitting

1. Working in the engine compartment, position the pump (1b) and secure it to the mounting (1c) tightening the two fixing bolts (1a) to the recommended torque.

	Value - daNm	Fastening	Component	Ø
1a	2.2	Bolt	POWER STEERING PUMP SUPPORT/BRACKET	M8

1. Working on the wheel arch side, tighten the bolt (1a) fixing the power assisted steering pump reinforcement bracket (1b to the recommended torque.

	Value - daNm	Fastening	Component	Ø
1a	2.2	Bolt	POWER STEERING PUMP SUPPORT/BRACKET	M8

1. Connect the connectors for the pump return (1a) and supply (1b) pipes, positioning the copper washers, then tighten them to the recommended torque.

	Value - daNm	Fastening	Component	Ø
1a	4	Connector	POWER STEERING PUMP SUPPLY PIPE	M18 X 1.5

	Value - daNm	Fastening	Component	Ø
1b	4	Connector	POWER ASSISTED STEERING PUMP/BOX PIPE	M16 X 1.5

1. Connect the connections for the engine oil level sensor (1a) and the air conditioning compressor supply (1b).

	Description	Connector
1a	Engine oil level sensor	K032

	Description	Connector
1b	Air conditioning compressor engagement electro-magnet	L020

- Connect the duplex pipe to the fluid return pipe ato the power assisted steering reservoir and close the retaining band.

See in Op. 1080B38 LEFT CATALYTIC PRECONVERTER - R.R. or Replace Gasket

See in Op. 1088E10 Radiator cooling FAN - R.R.

See in Op. 7055B54 PROTECTION/GUARD under engine - R.R.

See in Op. 1048A11 COMPLETE AIR FILTER -R.R.

See in Op. 1048A23 Cold AIR INTAKE for air filter - R.R.

See in Op. 1048A21 AIR INLET HOSE FROM INTAKE TO FILTER - R.R.

See in Op. 1048A28 vacuum air circuit resonator pipe - r+r

See in Op. 1092B40 Air conditioning compressor/alternator drive BELT - R.R.

See in Op. 7055B42 FRONT WHEEL ARCH LINER (one), left or right - R.R.

See in Op. 7055B64 Engine compartment DUST SEAL in front wheel arch (one), left or right - R.R.

- Lower the vehicle

See in Op. 4450B04 Right FRONT WHEEL (one) - R.R.

See in Op. 0010T70 POWER ASSISTED STEERING FLUID - Replace

- Connect the negative battery terminal and position the cover on the left hand side of the luggage compartment.

- Remove the vehicle from the lift.

2.0 TB, 2.4 20V, 2.4 JTD 10V, 2.4 JTD 20V

Removing

- Position the vehicle on a lift.

- Disconnect the negative battery terminal.

- Raise the lift.

See in Op. 7040D50 ENGINE COMPARTMENT UPPER SOUND INSULATION SHIELD - R.R.

See in Op. 7055B54 PROTECTION/GUARD under engine - R.R.

- Working on the band securing the flexible section of the duplex pipe to the rigid section of the supply pipe from the reservoir, drain the power assisted steering system fluid into a suitable container.

- Then restore the connection for the two pipes using a new band.

2.4 20V

See in Op. 1016A40 Ignition COIL COVER on cylinder head - R.R.

- Loosen the bolts fixing the power assisted steering pump pulley.

See in Op. 4450B04 Right FRONT WHEEL (one) - R.R.

See in Op. 7055B42 FRONT WHEEL ARCH LINER (one), left or right - R.R.

See in Op. 7055B64 Engine compartment DUST SEAL in front wheel arch (one), left or right - R.R.

- Loosen the bolts fixing the power assisted steering pump pulley.

See in Op. 1092G10 Engine components single drive BELT - R.R.

See in Op. 1092G15 Engine components single belt MOVING TENSIONER - R.R. with belt removed

2.4 JTD 10V

See in Op. 1016A10 SOUND-PROOFING COVER - R.R.

See in Op. 4450B04 Right FRONT WHEEL (one) - R.R.

See in Op. 7055B42 FRONT WHEEL ARCH LINER (one), left or right - R.R.

See in Op. 7055B64 Engine compartment DUST SEAL in front wheel arch (one), left or right - R.R.

- Loosen the bolts fixing the power assisted steering pump pulley.

See in Op. 1092G10 Engine components single drive BELT - R.R.

See in Op. 1092G15 Engine components single belt MOVING TENSIONER - R.R. with belt removed

2.0 TB

See in Op. 1016A40 Ignition COIL COVER on cylinder head - R.R.

See in Op. 4450B04 Right FRONT WHEEL (one) - R.R.

- Raise the vehicle on the lift.

See in Op. 7055B54 PROTECTION/GUARD under engine - R.R.

See in Op. 7055B42 FRONT WHEEL ARCH LINER (one), left or right - R.R.

- < R1 > (right side)

See in Op. 7055B64 Engine compartment DUST SEAL in front wheel arch (one), left or right - R.R.

- < R1 > (right side)

See in Op. 1048A50 air inlet pipe to turbocharger - r + r

See in Op. 1048A21 AIR INLET HOSE FROM INTAKE TO FILTER - R.R.

See in Op. 1048A10 COMPLETE AIR FILTER -R.R.

See in Op. 1092G10 Engine components single drive BELT - R.R.

See in Op. 1092G15 Engine components single belt MOVING TENSIONER - R.R. with belt removed

2.4 JTD 20V

See in Op. 4450B04 Right FRONT WHEEL (one) - R.R.

See in Op. 7055B42 FRONT WHEEL ARCH LINER (one), left or right - R.R.

See in Op. 7055B64 Engine compartment DUST SEAL in front wheel arch (one), left or right - R.R.

See in Op. 1016A10 SOUND-PROOFING COVER - R.R.

See in Op. 1048B44 RIGID air supply PIPE from heat exchanger to intake manifold - R.R.

See in Op. 1092G10 Engine components single drive BELT - R.R.

See in Op. 1092A10 Crankshaft PULLEY - R.R.

See in Op. 1092G15 Engine components single belt MOVING TENSIONER - R.R. with belt removed

2.0 TB, 2.4 20V, 2.4 JTD 10V, 2.4 JTD 20V

1. Undo the retaining bolts.

2. remove the power assisted steering pulley.

1. Undo the retaining bolts.

2. Remove the plastic alternator/power assisted steering pump guard.

- Undo the upper alternator fixing bolt and loosen the lower fixing bolt, then rotate it downwards.

1. Undo the retaining bolts.

2. Remove the alternator rear mounting bracket.

1. Disconnect the retaining band for the fluid supply pipe from the reservoir on the power assisted steering pump.

2. Undo the connector on the power assisted steering pump supplying pressurized fluid to the power assisted steering box.

3. Undo the bolts fixing the pump to the support.

4. Remove the power assisted steering pump.

Refitting

- Fit the power assisted steering pump in the housing on the support.

- Tighten the bolts fixing thepower assisted steering pump to the support to torque.

	Value - daNm	Fastening	Component	Ø
	2.5	Bolt	POWER STEERING PUMP	M8

- Connect the retaining band for the fluid supply pipe from the reservoir on the power assisted steering pump.

- Tighten the connector on the power assisted steering pump supplying pressurized fluid to the power assisted steering box.

- Fit the alternator rear bracket and tighten the bolts fixing it to the crankcase to torque.

- Position the alternator and fasten it using the fixing bolts.

	Value - daNm	Fastening	Component	Ø
	5	Nut	ALTERNATOR ASSEMBLY	M10 X 1.25

	Value - daNm	Fastening	Component	Ø
	7	Nut	ALTERNATOR ASSEMBLY	M12 X 1.25

- Fit the plastic alternator/power assisted steering pump guard.

- Position the power assisted steering pump drive pulley and secure it using the bolts.

2.4 JTD 20V

See in Op. 1092G15 Engine components single belt MOVING TENSIONER - R.R. with belt removed

See in Op. 1092A10 Crankshaft PULLEY - R.R.

See in Op. 1092G10 Engine components single drive BELT - R.R.

See in Op. 1048A56 UPPER RESONATOR - R.R.

See in Op. 1048B44 RIGID air supply PIPE from heat exchanger to intake manifold - R.R.

See in Op. 7055B64 Engine compartment DUST SEAL in front wheel arch (one), left or right - R.R.

See in Op. 7055B42 FRONT WHEEL ARCH LINER (one), left or right - R.R.

See in Op. 4450B04 Right FRONT WHEEL (one) - R.R.

2.0 TB

See in Op. 1092G15 Engine components single belt MOVING TENSIONER - R.R. with belt removed

See in Op. 1092G10 Engine components single drive BELT - R.R.

See in Op. 1048A10 COMPLETE AIR FILTER -R.R.

See in Op. 1048A21 AIR INLET HOSE FROM INTAKE TO FILTER - R.R.

See in Op. 1048A50 air inlet pipe to turbocharger - r + r

See in Op. 1016A40 Ignition COIL COVER on cylinder head - R.R.

See in Op. 7055B64 Engine compartment DUST SEAL in front wheel arch (one), left or right - R.R.

See in Op. 7055B42 FRONT WHEEL ARCH LINER (one), left or right - R.R.

See in Op. 7055B54 PROTECTION/GUARD under engine - R.R.

See in Op. 4450B04 Right FRONT WHEEL (one) - R.R.

See in Op. 1016A40 Ignition COIL COVER on cylinder head - R.R.

2.4 JTD 10V

See in Op. 1092G15 Engine components single belt MOVING TENSIONER - R.R. with belt removed

See in Op. 1092G10 Engine components single drive BELT - R.R.

See in Op. 7055B64 Engine compartment DUST SEAL in front wheel arch (one), left or right - R.R.

See in Op. 7055B42 FRONT WHEEL ARCH LINER (one), left or right - R.R.

See in Op. 4450B04 Right FRONT WHEEL (one) - R.R.

See in Op. 1016A10 SOUND-PROOFING COVER - R.R.

2.4 20V

See in Op. 1092G15 Engine components single belt MOVING TENSIONER - R.R. with belt removed

See in Op. 1092G10 Engine components single drive BELT - R.R.

See in Op. 7055B64 Engine compartment DUST SEAL in front wheel arch (one), left or right - R.R.

See in Op. 7055B42 FRONT WHEEL ARCH LINER (one), left or right - R.R.

See in Op. 4450B04 Right FRONT WHEEL (one) - R.R.

See in Op. 1016A40 Ignition COIL COVER on cylinder head - R.R.

2.0 TB, 2.4 20V, 2.4 JTD 10V, 2.4 JTD 20V

- Refill the power assisted steering system using the appropriate fluid.

	Description	Qty.	Component	Type	Classification
	TUTELA HP 20		POWER ASSISTED STEERING CIRCUIT	Oil	ATF DEXRON III

- Continue with the bleeding procedure following the instructions given below.

- With the front wheels raised off the ground and the engine switched off, carry out 4 or 5 complete rotations of the steering wheel (left and right).

- Check and, if necessary, top up the power assisted steering fluid level.

- Position the vehicle on the ground and start up the engine.

- Carry out 4 or 5 complete rotations of the steering wheel (left and right).

- If necessary, top up the power assisted steering fluid level.

See in Op. 7040D50 ENGINE COMPARTMENT UPPER SOUND INSULATION SHIELD - R.R.

See in Op. 7055B54 PROTECTION/GUARD under engine - R.R.

Parts & tools for this job For 2002 Lancia Thesis

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