Observe the following conditions prior to the A/C performance test
1. Provision of a diagnosis system. Safeguard electrical system integrity by
checking the fault memory (no
faults in the fault memor
WARNING: Only persons in possession of a professional certificate
of competence for the maintenance and repair of heating and air conditioning
systems are authorized to carry out repair work on the
Work on the refrigerant circuit may only be carried out by experts!
Avoid all contact with liquid or gaseous R 134a. Wear safety goggles and
gloves when working on the
refrigerant circuit.
Follow S
Steering angle detection
The code disc enables a 4-digit digital code to be generated for each light
field. The 12- digit digital code is
formed by lining up the 4-digit digital codes. The steering-angle speed can be
ascertained from the changes to
the individual digital codes.
Fig. 135: Operatin
The Principle
The HUD can be compared to a projection device. A light source is required to
project the HUD information.
The two LED arrays (red and green) serve as the light source. The image content
is created by the TFT
projection display. The TFT projection display can be compared to a filter