Haldex Filter Service Kit Gen 1 Audi VW SEAT Skoda 02D525558A - BorgWarner

BorgWarner Haldex Generation 1 Filter Service Kit — Audi, VW, SEAT, Skoda — 02D525558A / DS120359

Haldex oil and filter changes are the maintenance item most owners overlook on four-wheel-drive models, yet skipping them lets metal fragments circulate and wear out the pump — and eventually the whole Haldex unit. This kit puts a fresh filter back in place to catch that debris before it causes damage.

This listing is supplied as the BorgWarner-boxed unit; BorgWarner is the OEM behind the Haldex system.

This listing is the BorgWarner-supplied unit. Also available as ET2261-ST (S-TEC).

Parts Included

• Generation 1 Haldex filter
• Filter cap
• Rubber seal

Part Numbers

BorgWarner: DS120359
VAG: 02D525558 / 02D525558A / 2D525558 / 2D525558A

Vehicle Compatibility

• Audi A3 Quattro (1997–2003) / TT Quattro (1999–2005)
• SEAT Alhambra 4x4 (2001–2010) / Leon 4Drive (2000–2006) / Toledo (1999–2004)
• Skoda Octavia 4x4 (1999–2005)
• VW Beetle 4Motion (1999–2001) / Bora 4Motion (1999–2005) / Golf 4Motion (1998–2006) / Sharan 4Motion (2001–2010)

Frequently Asked Questions

Can I carry out the filter service at home?

Yes — the filter sits underneath the vehicle and is accessible without removing the Haldex unit itself. With the correct Haldex oil, a drain pan and this kit, the job can be done with ordinary workshop tools.

How often should the Haldex filter be replaced?

We recommend a Haldex oil and filter change every 20,000 miles, or immediately if the vehicle’s service history is unknown, to protect the pump from contamination.

Does 02D525558 and 02D525558A refer to the same part?

They are successive VAG part numbers that supersede one another. DS120359 is the correct BorgWarner reference covering the complete Generation 1 filter service application.

Why Choose Eco Torque?

As specialists in gearbox rebuilds and repairs, Eco Torque takes pride in offering:

• Genuine gearbox parts
• High-quality aftermarket alternatives
• Competitive pricing

Explore our expanding product range online and find the perfect parts for your needs.

Need Help Finding the Right Part?

If you’re unsure whether this part is compatible with your vehicle, send us your UK registration number or VIN code, and we’ll help you find the correct part.

Reference Number: ET2261-BW