Speaker Output Function - GF82.62-P-4212RFN

WARNING: This page is about a different car, the 2023 Mercedes-Benz GLC300, 2022 Mercedes-Benz GLC300, 2021 Mercedes-Benz GLC300, 2020 Mercedes-Benz GLC350e, and 2020 Mercedes-Benz GLC300. However, it is still accessible from the selected car via links, so may be relevant.

Model 253 (except 253.99)

as of Model year 2020

Courtesy of MERCEDES-BENZ USA

Function requirements, general

Circuit 30t ON
Transport mode not active

Speaker output, general

A distinction is made between the following procedures:

Speaker output in vehicles except code 810 (Sound system) and except code 853 ("Midline" sound system)
Speaker output in vehicles with code 853 ("Midline" sound system)
Speaker output in vehicles with CODE 810 (Sound system)

Model 253 (except 253.99)

as of Model year 2020

with code 362 (HERMES LTE)

With telematics services with a voice connection (e.g. emergency call), the center instrument panel speaker is used for voice output and actuated via direct lines by the HERMES control unit. This is not taken into consideration in the following.

Speaker output in vehicles except code 810 (Sound system) and except code 853 ("Midline" sound system)

The head unit outputs the audio signals via the following speakers:

Left footwell woofer (right-hand drive vehicles)
Right footwell woofer (left-hand drive vehicles)
Left front door midrange speaker
Right front door midrange speaker
Left rear door/side paneling midrange speaker
Right rear door/side paneling midrange speaker

Speaker output in vehicles with code 853 ("Midline" sound system)

The head unit outputs the audio signals via the following speakers:

Center instrument panel speaker
Left front door midrange speaker
Right front door midrange speaker
Left rear door/side paneling midrange speaker
Right rear door/side paneling midrange speaker

The head unit actuates the following speakers via the subwoofer amplifier:

Left footwell woofer
Right footwell woofer

Speaker output in vehicles with CODE 810 (Sound system)

The audio signals are forwarded by the head unit over MOST to the sound system amplifier control unit where they are finally amplified and output at the following speakers through direct lines:

Center instrument panel speaker
Left footwell woofer
Right footwell woofer
Left rear surround sound system midrange speaker
Right rear surround sound system midrange speaker
Left front door tweeter
Right front door tweeter
Left rear door/side paneling tweeter
Right rear door/side paneling tweeter
Left front door midrange speaker
Right front door midrange speaker
Left rear door/side paneling midrange speaker
Right rear door/side paneling midrange speaker

	Electrical function schematic for speaker system		PE82.62-P-2300-97FBC
	Overview of system components, telematics		GF82.85-P-9999RFM