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The Volvo Parts, Accessories &
Performance Specialists Since 1963

Haldex 2 / 3 Service Kit - P1 P2 S40 V50 S60 V70 S80 XC90

OES - 142028

$516.95KIT
Available to Order
Backorders are typically available to ship within two weeks
Item Number
142028
Brand
OES
Brand Classification
OES
Units Per Car
1
Product Group
Repair & maintenance
Comp OE References
Genuine Volvo - 30787687, 30783079, 31367941

Product Description

If your AWD P1 or P2 Volvo has unexpectedly left you stranded in slippery conditions, it's possible your car's AWD needs service.

Volvos like the XC70, S60R & V70R, and AWD versions of the XC90, S80, S60/V70, and S40/V50 use a system called Haldex to engage the rear wheels when the front wheels start to slip. 


A cutaway diagram of the Active On-Demand Coupling

This Haldex system relies on a multi-plate clutch in the rear of the car, also called the Active On-Demand Coupling (AOC). When the system detects front wheel spin, valves open and allow pressurized oil to clamp the clutch down, hooking up the rear wheels and getting you moving again.

The system relies on oil pressure as high as 80 bar (1100psi!) to cycle the hydraulic clutch, and just like any system that pumps oil around, regular fluid changes are recommended. For Haldex, we suggest changing the fluid every 50,000 miles


A clogged (and failed!) Haldex pump

If fluid changes are neglected, the Haldex pump filter screen can start to get clogged and the pump has to work harder and harder until it eventually burns out: you'll suddenly get lots of front wheel spin, and when scanned the car will have pump error codes from the DEM, such as DEM-0006..

This kit contains Genuine Volvo and Original Equipment Supplier to Volvo (OES) components:

  • A BorgWarner haldex pump, with pinion flange nut
  • A bottle of Rein haldex fluid
  • A Genuine Volvo filter and filter cover with o-ring

Additional Keywords: AOC ACTIVE ONDEMAND ON-DEMAND COUPLER COUPLING AWD

About OES

OES or Original Equipment Supplier, refers to manufacturers of Volvo Blue Box parts that Volvo has contracted out to. For example, Volvo does not make spark plugs itself, but instead provides specifications to ignition specialists like Bosch, Denso, or NGK, who then make a batch of spark plugs and ship them to Volvo.

When you see a part marked OES, it means it's coming from the same source that supplies Volvo their OEM products. You get the peace-of-mind of the same part that goes in to the blue box, without the blue box price tag.

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