Volkswagen Transporter T5 2005 Power steering fluid tank reservoir 7h0422371a

#85

Genuine used Volkswagen Transporter T5 Power Steering Fluid Tank / Reservoir, part number 7H0422371A, removed from a 2005 Volkswagen Transporter T5.

This reservoir forms part of the vehicle’s hydraulic power-assisted steering (PAS) system and stores the hydraulic fluid required by the power steering pump and steering rack.

Part Details

Part Number: 7H0422371A

VW OE Number: 7H0 422 371 A

Part Type: Power Steering Fluid Reservoir / PAS Tank

System: Hydraulic Power Steering

Application: Power Steering Fluid Storage / Supply

Donor Vehicle Reference: Volkswagen Transporter T5 2005

Manufacturer: Volkswagen / Genuine VAG

Condition: Used Genuine Part

Compatibility

Suitable for selected:

* Volkswagen Transporter T5 – 2003–2009

* Volkswagen Caravelle T5

* Volkswagen Multivan T5

* Volkswagen California T5

* Transporter Panel Van

* Transporter Kombi

* Transporter Shuttle

* Transporter Chassis Cab / Flatbed

* Selected camper and conversion models

Compatibility can vary according to engine, production date and power-steering system specification.

The safest method of confirming fitment is to match 7H0422371A / 7H0 422 371 A with the original reservoir.

Technical Information

The power steering reservoir stores the hydraulic fluid used by the Transporter’s power-assisted steering system.

During operation, hydraulic fluid circulates between the:

* Power steering reservoir

* Power steering pump

* Hydraulic pressure lines

* Steering rack

* Return lines

The reservoir provides a supply of fluid to the pump and receives returning fluid as it circulates through the steering system.

Maintaining the correct fluid level is essential for reliable hydraulic assistance and correct pump operation.

Power Steering System Information

The T5 hydraulic PAS system relies on clean hydraulic fluid and an unrestricted supply to the power steering pump.

Problems elsewhere in the steering system can sometimes appear to be reservoir-related.

Associated components include:

* Power steering pump

* Steering rack

* PAS fluid reservoir

* High-pressure steering hose

* Return hose

* Hydraulic pipes

* Power steering fluid cooler where fitted

* Hose clamps and connections

Any leaks within the system should be identified before replacing components.

Common Reasons for Replacement

Replacement may be required because of:

* Cracked reservoir

* Hydraulic fluid leakage

* Damaged hose connections

* Broken mounting points

* Contaminated reservoir

* Damaged or missing cap

* Reservoir deterioration with age

* Damage during engine-bay repairs

* Previous power steering system failure

Common Symptoms / Problems

Potential symptoms associated with the reservoir or hydraulic system include:

* Power steering fluid leaking

* Fluid level repeatedly dropping

* Heavy steering

* Intermittent steering assistance

* Power steering pump whining

* Foaming or aerated fluid

* Visible damage around the reservoir

* Fluid around hose connections

A whining power steering pump can also be caused by low fluid, air entering the system, incorrect fluid, hose restrictions or pump wear, so the complete system should be inspected.

Important Diagnostic Information

Before replacing the reservoir, check:

* Reservoir body for cracks

* Reservoir seams

* Reservoir cap

* Hose connections

* Supply hose

* Return hose

* Hose clamps

* Power steering pump

* Steering rack

* Hydraulic pipes

* Power steering cooler where fitted

* Overall fluid condition

If the reservoir is empty or significantly below the correct level, locate the source of the leak before refilling the system.

Power Steering Fluid Information

Use only the correct Volkswagen-approved hydraulic power steering fluid specification for the vehicle.

Do not assume that conventional automatic transmission fluid (ATF) is suitable.

Mixing incompatible hydraulic fluids can potentially cause problems with seals, hoses, pump operation and the steering rack.

Always confirm the required fluid specification for the exact vehicle before filling.

Installation

Installation is primarily mechanical/hydraulic.

During replacement:

* Keep all hose connections clean

* Prevent dirt entering the hydraulic system

* Inspect hoses before reconnecting

* Replace damaged clamps/seals where required

* Secure the reservoir correctly

* Refill with the correct hydraulic fluid

* Bleed the power steering system correctly

* Check the fluid level after bleeding

* Inspect carefully for leaks

* Confirm smooth steering operation

Running the power steering pump with insufficient fluid can damage the pump.

Programming / Coding

No programming or coding required.

This is a mechanical/hydraulic power steering component.

Important Compatibility Note

Volkswagen used different power steering reservoirs and revisions across the Transporter range.

Before ordering, please compare:

OE Number: 7H0422371A / 7H0 422 371 A

Reservoir shape

Hose connection positions

Hose connection diameters

Mounting points

Cap arrangement

Original reservoir

Do not rely solely on vehicle model or engine size when confirming compatibility.

Condition

Used genuine Volkswagen part.

As a used engine-bay component, the reservoir may show normal marks, staining, scratches, discolouration and signs of previous installation.

Some residual power steering fluid may also remain inside the reservoir.

Please inspect the supplied photographs carefully for the exact reservoir condition, mounting points, hose connections, cap and components included.

An ideal genuine replacement for a cracked, leaking, damaged or contaminated Volkswagen Transporter T5 / Caravelle power steering fluid reservoir requiring OE number 7H0422371A.