Testing Operation Of Haldex Coupling - Skoda Octavia Workshop Manual

OCTAVIA
Edition 02.00
S00.5130.51.20
Self-Diagnosis/Electrical Test
Testing operation of Haldex
coupling
- Drive the front wheels of the vehicle onto a
roller dynamometer.
Warning!
Keep area in front of the vehicle clear. Proceed with
appropriate care when conducting the test in or-
der to avoid any damage.
- Engage 1st gear and start off slowly.
l If the vehicle is not pushed out of the
dynamometer at an engine speed of 1500
rpm, there is a fault at the Haldex coupling.
Notes:
The Haldex coupling locks as a result of the
driven front wheels and the stationary rear
wheels. This means that the rear wheels are
also driven.
The Haldex coupling is able to briefly absorb
the speed differences without locking only at
engine speeds which are just above idling speed
and when first gear is engaged. The vehicle is
not pushed out of the dynamometer.
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