Haldex Pump Gen 1 Rear Differential With Filter Audi SEAT Skoda VW 02D525557

Haldex Generation 1 Pump

With Generation 1 Filter Kit

For Audi SEAT Skoda Volkswagen

02D525557 / DS118574

The Haldex pump provides the oil pressure to operate the all-wheel-drive system assembly and engages the coupling to send power to the rear wheels. This part is prone to failure on higher mileage cars or if regular maintenance in not performed.

When Haldex pumps fail you may experience loss of power to the rear wheels,
reduced traction and grip. Replacing the hydraulic pump can restore your AWD
system allowing you to fully utilise the vehicles capabilities again.

Common symptoms of pump failure:

P16671
P16670
P16668
Blocked Filter Gauze
Complete Pump Failure

Please note you may experience some, but not all of the listed faults depending on the level of damage internally.

*Important*
The new pump requires programming via the learn procedure.
Please ensure your diagnostic equipment is able to complete this feature in order for the pump to work!

This kit contains the following parts:

OEM Haldex Pump
x 2 Screws
OEM Filter
Cap with O-Ring

Part Numbers

Pump
DS118574
118574
02D525557
SP01393

Filter
DS120359
120359
02D525558
02D525558A
2D525558
SP02023

Fitment Location 17 & 21 On Diagram

Vehicle Compatibility

Audi
AUDI A3 Quattro - 1997 to 2003
AUDI S3 Quattro - 1998 to 2003
AUDI TT Quattro - 1998 to 2006

SEAT
SEAT Alhambra - 2000 to 2010
SEAT Alhambra Van - 2002 to 2008
SEAT Leon - 2000 to 2006
SEAT Toledo - 2000 to 2005

Skoda
SKODA Octavia - 1999 to 2006

VW
VW Bora - 1998 to 2005
VW Bora Estate/Variant - 1999 to 2005
VW Golf - 1998 to 2005
VW Golf Estate/Variant - 1999 to 2005
VW Golf Van (Hatchback) - 2000 to 2001
VW New Beetle - 2000 to 2001
VW Sharan - 2000 to 2010

Please note, due to crossover OE suppliers on Haldex parts, you may receive items in a Borg Warner or S-Tec box. These are both brand new genuine parts.

As gearbox rebuild and repair specialists, Eco Torque is proud to offer genuine gearbox parts as well as high quality aftermarket alternatives throughout its store.

Browse Eco Torque's ever-evolving product range available to purchase online
at competitive prices.

If you cannot find the items you need or are unsure if the part is compatible with
your vehicle make and model, please send us your UK registration number or
VIN Code and we will direct you to the right part.

ETB2267B

What does the Haldex pump do?

The Haldex pump generates hydraulic pressure to engage the rear-axle coupling on AWD vehicles, transferring drive to the rear wheels when front-wheel slip is detected. Without a functioning pump, the AWD system is fully disabled.

How do I know if my Haldex pump has failed?

Common signs include loss of rear-wheel traction, AWD warning lights on the dashboard, and diagnostic fault codes related to Haldex oil pressure (e.g. P16668, P16670, P16671). A blocked filter gauze is also a frequent cause.

How often should the Haldex oil be changed?

Haldex oil should be changed every 20,000 miles. Neglecting the oil service is the leading cause of premature Haldex pump failure.

Is this a genuine part?

Yes. This kit uses a BorgWarner or S-Tec branded pump — both are genuine OE Haldex suppliers. You may receive either brand depending on stock; quality and specification are identical.

Can I reuse the original screws?

We recommend fitting the new screws supplied with the kit. Original fasteners may have stretched or corroded, and reuse risks oil leaks at the pump mounting face.

Why Choose Eco Torque?

As specialists in gearbox rebuilds and repairs, Eco Torque takes pride in offering genuine gearbox parts, high-quality aftermarket alternatives and competitive pricing.

Need Help Finding the Right Part?

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

Reference Number: ETB2267B