System Type
Haldex AWD 4th Generation
Condition
New Fully Functional
Manufacturer
Aftermarket
Component
Pre-Charge Pump
Package Includes
Pump + 2 Screws
Warranty
12 Months
Tested & Ready for Installation
This new Haldex pre-charge pump is a replacement unit for OEM reference 0AY598549A, designed to restore proper oil pressure and rear-wheel drive engagement in Gen 4 Haldex AWD systems.
OEM Part Numbers
Main OEM Number:
0AY598549A • 0AY 598 549 A
Related Reference Numbers:
0AY598549 • 0BS598549 • 0BR598549A • 0BR598549 • 1.13.051.409 • 1.13.051.409.00
Always Verify Your Part Number
Before placing an order, check the OEM number printed directly on your existing Haldex pump and confirm it matches 0AY598549A. If you are unsure about compatibility, contact us with your VIN number and we will help verify fitment.
Technical Specifications
System Type:
Haldex AWD 4th Generation
Component:
Pre-Charge Pump / Haldex Clutch Pump
Application:
Volkswagen Group AWD vehicles with 4th Gen Haldex coupling
Manufacturer:
Aftermarket replacement for OEM 0AY598549A
Included:
1x pump + 2x screws
Warranty Period:
12 Months
Product Description
This new aftermarket Haldex pre-charge pump with part number 0AY598549A is designed for 4th generation Haldex AWD systems used in a wide range of Volkswagen Group vehicles. The pump creates the hydraulic oil pressure required to activate the Haldex clutch pack and engage rear-wheel drive when traction is needed.
What This Pump Does
- Builds hydraulic pressure for Haldex clutch engagement
- Restores rear-wheel drive activation in AWD conditions
- Supports proper communication and operation of the Gen 4 Haldex system
- Helps eliminate AWD warning symptoms caused by a failed or weak pump
Service Recommendation
When replacing the Haldex pump, we strongly recommend replacing the Haldex filter and fresh Haldex oil at the same time. A clogged filter can overload a new pump and cause early failure.
Vehicle Compatibility
The 0AY598549A pump is suitable for selected Volkswagen Group vehicles equipped with 4th generation Haldex AWD. Always verify the exact OEM part number before ordering.
Suitable for the Following Vehicle Models
- Audi A1 8X (2010 - 2014)
- Audi A3 / S3 8P (2009 - 2013)
- Audi TT 8J 3.2 (2006 - 2010)
- Audi TT 8J 2.0 (2008 - 2014)
- Audi Q3 1 (2011 - 2014)
- VW Beetle (2011 - 2019)
- VW Caddy 2K (2009 - 2015)
- VW Golf 6 (2010 - 2013)
- VW Golf 7 (2012 - 2014)
- VW Jetta 6 (2010 - 2018)
- VW Passat CC (2008 - 2017)
- VW Passat B6 (2008 - 2011)
- VW Passat B7 (2010 - 2014)
- VW Sharan 2 (2010 - )
- VW Tiguan (2008 - 04/11/2013)
- VW T5 (2010 - 2015)
- Škoda Octavia 2 (2009 - 2013)
- Škoda Superb 2 (2008 - 2015)
- Škoda Yeti (2009 - 2012)
- Lamborghini Aventador (2011 - )
- SEAT Alhambra 7N (2010 - 2013)
- SEAT Altea / Altea 4 (2009 - 2015)
Not Sure About Compatibility?
If you are unsure whether this pump fits your vehicle, send us your VIN number or the OEM number from your existing pump. We will help confirm compatibility before you order.
Common Fault Codes & Symptoms
A faulty Haldex pump can cause rear-wheel drive loss, AWD warning behaviour, or poor clutch pressure build-up. Common pump-related symptoms and fault codes include:
-
00448 Haldex Clutch Pump (V181) – Lower Limit Exceeded
-
00448 Haldex Clutch Pump (V181) – Open Circuit
-
02248 Valve for Controlling Clutch Operating Angle (N373) – Electrical Fault in Circuit
-
01155 Clutch – Mechanical Failure
-
01324 Control Module for All Wheel Drive (J492) – No Signal / Communication
- Loss of rear-wheel drive / AWD not engaging
- Jumping or skipping wheel when turning in tight corners
- Binding sensation during tight turns
- Dashboard AWD / ABS / traction-related warning lights
Diagnostic Tip
For correct diagnosis, scan module 22 - AWD with VCDS / ODIS or equivalent diagnostic equipment and test pump operation directly. A healthy Gen 4 Haldex pump typically measures around 5 to 8 ohms across its terminals.
Installation & Service Notes
Recommended Steps
- Verify the exact OEM number on the original Haldex pump
- Replace the Haldex filter when installing a new pump
- Use fresh Haldex oil when servicing the system
- Inspect wiring and connector condition before installation
- Clear stored AWD fault codes after replacement
- Test pump operation with suitable diagnostics after installation
Important Service Note
If the old Haldex filter is clogged, a new pump can fail again in a short time. For best long-term reliability, replace the filter and oil during pump installation.
Why Haldex Pumps Fail
1. Clogged Filter
A blocked Gen 4 Haldex filter restricts oil flow and forces the pump to work harder, often causing premature pump failure.
2. Contaminated Oil
Old or dirty Haldex oil increases resistance in the hydraulic circuit and accelerates pump wear.
3. Electrical Failure
Internal motor wear, open circuit faults, or wiring problems can stop the pump from building proper clutch pressure.
4. Ignored AWD Faults
Continuing to drive with AWD fault codes, warning lights or weak pump performance can lead to further Haldex system damage.
Quality Assurance & Warranty
12-Month Warranty: This new Haldex pump is supplied with a 12-month functionality warranty under normal operating conditions.
Warranty Coverage Includes:
- Pump motor malfunction
- Internal functional failure of the replacement unit
- Operational defects under normal use
Warranty Exclusions:
- Incorrect installation
- Failure caused by clogged filter or contaminated oil
- External wiring or control unit faults
- Physical damage or misuse
Questions or Need Help?
Our technical team is ready to assist with compatibility checks, installation guidance and product selection.
Contact
Important Purchase Information
- Please verify this part fits your specific vehicle before placing an order
- Photos are for illustrative purposes only
- Worldwide shipping is available
- If your country is not listed at checkout, contact us and the order can be processed manually
- We recommend replacing the Haldex filter and oil together with the pump
- Please check if this product fits your car before purchase
