gf8355p2108fa

Component description of refrigerant compressor

Type gf · topic 83.55 · version 0100 · 2008-03-12

Applies to: MODEL 203.7 as of model year 09/YoM 08 model refinement package

Where it sits

Function group 3 Body › 83 Climate control › 83.55 A/C compressor — Series 203 (models 7**)

GF83.55-P-2108FA

Component description of refrigerant compressor

22.2.08

MODEL 203.7 as of model year 09/YoM 08 model refinement package

Component description of refrigerant compressor

P83.55-2165-04

A9 Refrigerant compressor

Location

The refrigerant compressor is located at the left front of the engine.

Task

The refrigerant compressor is responsible for induction and compression of the refrigerant. The refrigerant compressor output is continuously regulated up to 100 % by the AAC [KLA] control and operating unit (N22) via the compressor control valve (without code (581) Comfort automatic air conditioning) or by the comfort AAC [KLA] control and operating unit (N22/7) (with code (581) Comfort automatic air conditioning).

The control and operating unit transmits the switch-on request via the interior CAN to the front SAM control unit with fuse and relay module (N10/1).

This receives the request and actuates the compressor control valve.

The refrigerant compressor is switched off to match the outside temperature. If the outside temperature
is T < 2 °C, the refrigerant compressor is always switched off.

When the A/C button on the control and operating unit is pressed, the refrigerant compressor is also switched off. The other functionalities of the automatic air conditioning continue being available. However, the air in the vehicle interior cannot cool to less than the current outside temperature.