The Volvo Parts
Specialists
The Volvo Parts Specialists Since 1963 The Volvo Parts, Accessories & Performance Specialists Since 1963
logo
The Volvo Parts, Accessories &
Performance Specialists Since 1963

Haldex 4 AOC (Active On-Demand Coupling) Differential Pump

BorgWarner - DS119863 - 31256757 - 140813

IPD Item Number
140813
OEM Reference
31256757
Brand
BorgWarner
Mfr Part Number
DS119863
Brand Classification
OES
Product Group
REPAIR & MAINTENANCE
Position
REAR
Country of Origin
HUNGARY
Units Per Car
1
Cross Reference
31256757, 31259349, DS119863, LR075763

Product Description

Description

If your AWD P3 Volvo has unexpectedly left you stranded in slippery conditions, it's possible your car's AWD needs service.

AWD Volvos from 2003 and up (like the S60R/V70R, XC70, XC90, and AWD versions of the 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 filter and fluid changes are recommended. For Haldex, we suggest changing the fluid and filter every 50,000 miles


A clogged (and failed!) Haldex pump

If fluid changes are neglected and the filter gets clogged, the Haldex 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 pump kit is made by the Original Equipment Manufacturer for Volvo for this part, BorgWarner. It includes a new pump and new allen bolts, and is perfect for getting all four of your P3's wheels spinning again.

Additional Keywords: AOC HALDEX DIFF DIFFERENTIAL

About BorgWarner

The BorgWarner name stands for future-oriented charging systems, for 50 years now. 

Choose the automotive industry’s favorite brand: "The original from the propulsion system leader for combustion, hybrid and electric vehicles."

BorgWarner is the essential choice in the aftermarket. Not just because of the already legendary quality of their products, but also because of the selection, the range of services and the efficiency they offer their partners in the spare parts business.

Vehicle Fitment Guide

Shipping Estimate

Product Reviews

Policies, Warranty & FAQ

IPD is the Volvo Parts, Accessories and Performance Specialists Since 1963.

We offer a wide variety of high quality replacement, maintenance and restoration car parts plus our own line of heavy duty and performance products. Our custom built online parts catalog features Genuine, OE, OES, OEM, Aftermarket and IPD branded replacement auto parts.

Combine our unmatched 50+ year reputation with our outstanding customer service team and you can be confident we'll be here to serve your Volvo needs long in to the future. Not many others can match our knowledge and dedication to providing the very best customer service in the market. We have a physical location, live customer service agents you can call and extensive inventory so we can ship products to you quickly. Our customer and vehicle first approach means that your experience is our first priority. We have truly hassle-free returns and provide do-it-yourself (DIY) guides and videos for many of our products.

Local: 503.257.7500 | Toll-free: 800.444.6473

Monday-Friday | 8:30 AM to 5:00 PM PST