HALDEX

'Haldex' is a Swedish company manufacturing for example the Haldex limited slip coupling used in vehicles with automatic all wheel drive systems to engage and disengage a secondary axle when needed.
Among European car fans "Haldex" refers to the aforementioned differential system: its most prominent use is in all transverse engine 4x4 models of the VWAG group: (Audi A3 and TT, and Volkswagen Golf and Passat), making them non-permanent 4x4s, unlike longitudinal engine models (Audi A4, A6, A8) which use a Torsen-like differential. However, its short reaction time (only a seventh of a wheel spin) amply makes up for its non-permanent AWD (like Torsen) setup.
Also noteworthy is that purists despise the fact that "low end" Audis equipped with the "Haldex system" bear the same name (quattro) as their "greater" brethren using the Torsen differential. This is nothing more than confusion over nomenclature; due to the fact that the original Audi Quattro coupe did use a torque-sensing center differential (not Torsen, however), many fans believe that "quattro" refers to said type of AWD system, not realizing that it is simply a trademark (It is interesting to note that "quattro" is also used on the Audi Q7 SUV, which uses neither Torsen nor Haldex; instead, it uses a BorgWarner system.

Contents

Haldex Traction

External links

Haldex Traction

Haldex Traction is a part of the Haldex Group that is respensible for the manufacturing and marketing of the Haldex AWD system.
The Haldex AWD system is currently used in the following vehicle models:

★ Volkswagen Golf 4Motion

★ Volkswagen Bora 4Motion

★ Volkswagen Beetle RSi

★ Volkswagen Sharan 4Motion

★ Volkswagen Multivan 4Motion

★ Volkswagen Passat 4Motion

★ Volkswagen R32

★ Audi A3/S3 Quattro

★ Audi TT Quattro

★ Skoda Octavia 4x4

★ Seat León

★ Seat Alhambra

★ Volvo S40 AWD

★ Volvo V50 AWD

★ Volvo S60 AWD

★ Volvo S60R AWD

★ Volvo V70 AWD

★ Volvo V70R AWD

★ Volvo XC70

★ Volvo S80 AWD

★ Volvo XC90

★ Bugatti Veyron

★ Ford Freestyle

★ Ford Five Hundred

★ Mercury Montego

★ Land Rover LR2
The fourth generation Haldex system is called XWD (pronounced Cross-Wheel Drive) and will debut on the 2008.5 Saab 9-3.
The XWD system is based on completely new technology and includes such features as

★ Active rear electronic limited slip differential.

★ Pre-emptive engagement of rear wheels under hard acceleration.

External links

★ http://www.haldex-traction.com/

★ http://www.haldex.se/en/
Sidenote:The Haldex system are not and have not been in any Mazda vehicles.