What does a Haldex controller do?

The haldex controller controls the haldex clutch therefore controls when the drive is transferred to the rear wheels as well as ensuring it’s disengaged when reverse is selected or the car is braking.

How does Audi S3 Haldex 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.

Is the Audi S3 Haldex?

Because the A3/S3 has a transverse engine it cannot use a torsen and uses a centre diff called Haldex, made by a Swedish company. The Golf 4Motion is the same.

Is the S3 quattro or Haldex?

What’s interesting about this is that the Audi S3 doesn’t use proper Quattro. The first-gen S3, being based on the MkIV Volkswagen Golf, uses a transverse engine setup with a Haldex-based all-wheel drive system.

Which Audi models use Haldex?

Vehicles equipped with Haldex AWD

• Audi A3 quattro.
• Audi S3.
• Audi RS3.
• Audi Q3.
• Audi TT quattro.
• SEAT León 4.
• SEAT Altea Freetrack 4.
• SEAT Alhambra 4.

What happens if you don’t 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.

Is Haldex same as Quattro?

Starting from 1998, the Swedish Haldex Traction LSC unit replaced the viscous coupling. Haldex is used by Audi on the quattro versions of the Audi S1, Audi A3, Audi S3, and the Audi TT.

Is S3 four wheel drive?

All S3 models come with a 306-hp 2.0-liter four-cylinder engine, a seven-speed automatic transmission, and Audi’s Quattro all-wheel drive system.

How long does Haldex last?

Haldex oil should be replaced every 20,000 miles and the filter replaced every 40,000 miles.