Volkswagen Touareg - Power steering pump, 8-cylinder gasoline ...

Volkswagen Touareg - Power steering pump, 8-cylinder gasoline engine

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48 - 5

Power steering pump, 8-cylinder gasoline engine There is no provision for servicing the power steering pump. If complaints are received determine cause with the help of pressure tests and leakage test. If a malfunction exists replace power steering pump. Note:

If the fluid level in the reservoir is low, the steering system must be inspected for leaks.

If there are leaks in the area of the line connections, the lines/connections must first be inspected for leaks, tightened as necessary and wiped dry.

Power steering pumps supplied as spare parts and are not filled with oil. Therefore it is essential to fill the pump with hydraulic fluid G 002 000 and to rotate pump by hand, otherwise the power steering pump may be damaged or be noisy during operation.

Type of fluid: Hydraulic fluid G 002 000

Delivery pressure of power steering pump, 8-cylinder gasoline engine, checking

Power steering pump, 8-cylinder gasoline engine

Special tools, testers and auxiliary items required

Hose clamp 3094

Power steering test unit V.A.G 1402

Adapter V.A.G 1402/2

Hose from adapter set V.A.G 1402/6


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Adapter V.A.G 1402/4

- Remove sound insulation for engine

Repair Manual, Body Exterior, Repair Group 50, Sound insulation, installation overview

- Clamp off intake hose with hose clamp 3094 . - Remove pressure line at the power steering pump.

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- Assemble adapters as shown in illustration. 1 - Power steering test unit V.A.G 1402 2 - Adapter V.A.G 1402/2 3 - Adapter V.A.G 1402/4 4 - Hose from adapter set V.A.G 1402/6 5 - Banjo bolt 6 - Seal ring - Remove hose clamp 3094 from intake line.

Make sure that the lever on the pressure gauge is in position - 2 - .

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- Start engine and if necessary top off hydraulic fluid in reservoir. - Turn steering wheel from lock to lock about 10 times. - Now check delivery pressure. Requirements:

V-belt/V-belt tension OK

System has no leaks

Hoses/lines not kinked or restricted

- With engine at idle speed, close shut-off valve for no longer than 5 seconds (position - 1 - ) and read pressure. Specifications: 110 to 120 bar If pressure is not to specification, replace power steering pump 48-5, Power steering pump 8-cylinder gasoline engine, removing and installing . - Remove pressure gauge and adapter. - Bleed steering system system .

48-7, Bleeding steering

- Inspect hydraulic oil level and top off as needed Repair Manual, Maintenance

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. - Check steering system for leaks system, checking for leaks .

48-7, Steering

Power steering pump 8-cylinder gasoline engine, assembly overview

Note :

Replace sealing rings

Do not reuse drawn off hydraulic oil.

Hydraulic fluid: G 002 000

Banjo bolt, 40 Nm

Sealing rings, 16 x 22

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Always replace

Pressure hose

Intake hose

Spring clamp

Power steering pump

Check delivery pressure 48-5, Delivery pressure of power steering pump, 8cylinder gasoline engine, checking

Fill with fluid before installation

Removing and installing 48-5, Power steering pump 8-cylinder gasoline engine, removing and installing

Shim

Drive belt pulley

Internal hex bolt, 25 Nm

Hex bolt, 25 Nm

Bracket

Power steering pump 8-cylinder gasoline engine, removing and installing


Hose clamp 3094

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Torque wrench V.A.G 1331

Alignment gauge 3201

Hex bolt M8 x 50

Removing

- Remove fan mount

Repair Manual, 4.2 Liter V8 5V Engine Mechanical, Fuel Injection Ignition, Engine Code(s): AXQ, BHX, Repair Group 19, . - Remove sound insulation for engine

Repair Manual, Body Exterior, Repair Group 50, Sound insulation, installation overview

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- Loosen bolts for belt drive pulley - Arrows - . - Mark direction of rotation for belt

- Rotate tensioner as far as stop in direction of - arrow - . - Remove belt.

- Clamp off intake hose with hose clamp 3094 . - Remove belt drive pulley from power steering pump.

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- Remove banjo bolt and close off pressure line - 1 - with a plastic bag or similar. - Open spring clamp and pull intake hose - 2 - off power steering pump. - Unbolt power steering pump - Arrows - and remove.

- Measure dimension - a - . The shim is included in measurement. - Make note of measurement. Installing

Installation is reverse of removal, with special attention to the following:

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- Measure dimension - a - . - Make note of measurement. - Determine thickness of shim thickness of shim .

48-5, Calculating

- Fill power steering pump with hydraulic fluid. Fill power steering pump with fluid through intake line. - Turn hub by hand until oil runs out of pressure side. - Install power steering pump.

- When tightening banjo bolt, clip - Arrow - on pressure line must be against power steering pump housing. Calculating thickness of shim

- Calculate shim thickness using values measured. Example:

-

Measurement of old pump with shim

33.65 mm

Measurement of new pump without shim

32.85 mm

Thickness of shim =

0.80 mm

The following shims are available:


Thickness (mm) 0.6 0.8 1.0 1.2 1.4 Application of shims see Parts catalog. - Install belt drive pulley on power steering pump.

- Using alignment gauge 3201 , check whether belt drive pulleys are aligned with each other. - If two drive pulleys are not in alignment, a different suitable shim must be used.

- Install belt. - Bleed steering system system .

48-7, Bleeding steering

- Check hydraulic fluid level Repair Manual, Maintenance . - Check steering system for leaks steering system .

48-7, Bleeding

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Tightening torques Power steering pump to bracket

25 Nm

Belt pulley to power steering pump

25 Nm

Banjo bolt to power steering pump

40 Nm