What is a Haldex clutch?
The term “Haldex coupling” refers to a multi-plate clutch according to the design of the Swedish company with the same name. In SEAT cars with permanent all-wheel drive it permits a variable power distribution between the front and rear axle drives.
How does Haldex clutch work?
As Haldex is based on transverse-mounted FWD systems, the default setup for Haldex AWD drives the front wheels only. When wheel-slippage is detected, the Haldex computer systems redirect torque to the rear wheels to compensate for the loss of traction at the front.
What is the Haldex on an Audi?
The Haldex Coupling made its first appearance in the Audi TT, Audi S3 8L and VW Golf with an electronically controlled hydraulic-mechanical all-wheel drive concept. This system attempts to engage the rear wheels when the front wheels start to slip.
What happens if you dont change Haldex oil?
If the Haldex oil is dirty, it can damage other components and affect performance. Dirty oil can overheat the coupling or cause the clutches to burn out. It can also burn out the Haldex Pump and will lead to loss of rear drive and eventual failure.
How do I know if my Haldex is working?
Drive in circle with minimum turning radius at same speed as in case 1. Disengage the clutch and run up the engine to 3000 – 4000 rpm. Let the car roll to full stop. * If the coupling is working the car will stop in about half the distance in case 2 compared with case 1.
How do I know if Haldex is working?
Disengage the clutch and run up the engine to 3000 – 4000 rpm. Let the car roll to full stop. * If the coupling is working the car will stop in about half the distance in case 2 compared with case 1. * If there is no difference in the two cases there is a malfunction of the coupling.
How often should I change Haldex oil?
A Haldex oil change/service should be carried out every 20,000 miles for best results. However, this can change depending on the model and age of your vehicle. For vehicles without a filter, this may mean booking a Haldex service every 10,000 miles.
What Colour is Haldex oil?
A clear honey colour. The Haldex Coupling is a very sophisticated piece of engineering and it needs to be looked after with regular oil changes.
How often should you change Haldex oil?
every 20,000 miles
A Haldex oil change/service should be carried out every 20,000 miles for best results. However, this can change depending on the model and age of your vehicle. For vehicles without a filter, this may mean booking a Haldex service every 10,000 miles.
