Electric Drive Sound Generator, Basic Function - GF08.20-P-9890A

Model all (CAR) with code B53 (Acoustic ambient protection) with code ME01 (Electric motor) 

Model all (CAR) with code B53 (Acoustic ambient protection) with code ME05 (HYBRID DRIVE 80KW VARIANT (INCLUDING PLUGIN)) 

Model all (CAR) with code B53 (Acoustic ambient protection) with code ME08 (Hybrid drive 75-84 kW VARIANT (INCLUDING PLUGIN)) 

Overview 

This document contains information on:

• General 
• Location 
• Function requirements 
• Function 

General 

The sound generators emit a warning tone in electric mode as a warning to other road users.

Show on model 293 

Courtesy of MERCEDES-BENZ USA

Location 

The sound generator is located in the vehicle to the front right on the bottom of the engine compartment. The rear end sound generator, i.e. sound generator 2 (H4/134), is located in the rear area on the underbody.

Show on model 293 

Function requirements 

• Circuit 30t ON

Function 

Depending on the speed and accelerator pedal position, the sound generators generate an audio signal between 0 and 30 km/h. At speeds greater then 30 km/h, the sound generators are deactivated because the rolling and wind noises are loud enough that the vehicle can be perceived.