2nd generation Borgwarner rear axle pump 0AV598549A

DS118613 - BorgWarner 4x4 Coupling Pump – VAG AWD Systems (VW, Audi, Skoda, Seat)

The BorgWarner DS118613 4-wheel drive coupling pump is an oil pump dedicated to all-wheel drive (AWD / 4Motion / Quattro) systems fitted to many Volkswagen, Audi, Skoda, and Seat models. Located on the rear axle, it supplies and pressurizes the 2nd generation Haldex multi-plate coupling, effectively distributing torque between the front and rear to ensure traction and stability, particularly on wet or snowy roads, or during dynamic driving.

Main Features

• Part Type: 4-wheel drive multi-plate coupling pump / AWD coupling oil pump.
• Position: Mounted on the Haldex module / rear coupler, at the rear differential.
• Quality: OE BorgWarner part, equivalent to original equipment, suitable for the relevant generation of VAG AWD systems.
• Function: Pressurization and lubrication of the multi-disc coupling to engage and modulate torque transmission to the rear axle.
• Direct replacement for the original 4x4 pump, with compatible electrical connectors and mounting points.
• To be used with specific Haldex oil / AWD fluid according to manufacturer recommendations.

Typical Symptoms of a Faulty DS118613 Pump

• Loss of all-wheel drive operation: the vehicle behaves like a front-wheel drive.
• Illumination of ESP / 4x4 / transmission warning lights and presence of fault codes in the Haldex/AWD control unit.
• Abnormal noises, intermittent 4Motion/Quattro system operation, or error messages related to the coupler oil pressure.

Vehicle Compatibility (Main VAG Applications)

The BorgWarner DS118613 pump is used on many VAG Group models equipped with the relevant generation of Haldex all-wheel drive. It is notably common on:

• Volkswagen Golf 5 4Motion / R32 – models equipped with Haldex all-wheel drive.
• Volkswagen Passat B6 4Motion – sedan and estate with multi-disc rear AWD system.
• Volkswagen Touran / Tiguan 4Motion – depending on years and AWD engines.
• Audi A3 8P Quattro – 4x4 gasoline and diesel versions (2.0 TFSI, 2.0 TDI, etc.).
• Audi TT 8J Quattro – 2.0 TFSI and 3.2 V6 engines equipped with Haldex AWD.
• Skoda Octavia II 4x4 – 4-wheel drive estate and sedan.
• Seat Leon / Altea 4x4 – VAG derivatives with Haldex rear coupling.

Exact compatibility depends on the Haldex generation and the OEM reference originally fitted (e.g., 0AV 598 549 / 0AV 598 549 A). It is recommended to verify by VIN or original part number before ordering.

References and Equivalents

• Manufacturer Reference: DS118613 – BorgWarner.
• Type: AWD / Haldex coupling oil pump.
• Typical OEM References: 0AV598549, 0AV598549A (to be confirmed depending on model).