Haldex Filter Service Kit Gen 1 Audi VW SEAT Skoda 02D525558A - BorgWarner
Ex VAT: £34.03
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UK delivery — parts we hold in stock
Ordered before 2pm on a working day, these are dispatched the same day by express courier and normally arrive within 1–2 working days.
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A large part of our range is held by our supplier in Germany rather than on our own shelves. We order these in for you as soon as you place the order. They normally dispatch within 7–10 working days, and are then sent on by express courier like anything else. Nothing ships to you direct from Germany — it comes to our Arlesey workshop first, so you deal only with us for returns and warranty.
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*Delivery times are estimates and can be affected by factors outside our control.
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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.
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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
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