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Home >> Mercedes Benz >> 2021 >> GLS450 >> Repair and Diagnosis (Single Page) >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control System - 167 Chassis (1 Of 2) >> Basic Knowledge >> Climate Control Control Unit, Basic Function - GF83.40-P-9890A
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Climate Control Control Unit, Basic Function - GF83.40-P-9890A

Model 167, 293 

Model 213, 238, 257, 290 

as of model year 2021 

Overview 

This document contains information on:

General 

The climate control control unit regulates the temperature and the air distribution in the vehicle interior depending on the settings made and the variables recorded by the various sensors. The tasks of the climate control control unit include:

Fig 1: Climate Control Control Unit Components Location - Model 167
G14550321Courtesy of MERCEDES-BENZ USA

Location 

The climate control control unit (1) is located behind the glove compartment in the instrument panel.

Function requirement