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(Remove/Install Sound Generator Control Unit - AR82.27-S-0005E)

Model 447.6 

With Code J2A (Acoustic ambient protection) 

With Code M8E (Electric motor 85 kW/battery 60 kWh (usable)) 

Except Code ME0 (Electric motor 85 kW) 

Except Code XM7 (MOPF II) 

Model 447.8 

With Code J2A (Acoustic ambient protection) 

With Code ME4 (Electric motor 145 kW) 

Except Code XM7 (MOPF II) 

G16488483Courtesy of MERCEDES-BENZ USA

Shown On Model 447.8 

G16488484Courtesy of MERCEDES-BENZ USA
G16488485Courtesy of MERCEDES-BENZ USA
Notice  Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
Notice  Notes on carrying out repair work in the vehicle interior   AH68.00-D-0001-01KOS
REMOVINGINSTALLING Remove/install     
1 Switch off ignition, remove transmitter key and store it outside of the transmission range (min. 2 m).    
2 Remove left cover under instrument panel. Model 447.6 with code LC7 (Illumination for front footwell); model 447.8 AR68.10-S-1500E
3 Remove 360° camera control unit from control units holder (1) and guide to one side with connected lines. Model 447.8 with code JS1 (360° Camera) AR54.30-S-3004E
4 Release and disconnect electrical connector (2) at sound generator control unit (N12/2).    
5 Remove retaining plate (3) together with sound generator control unit (N12/2) from control units holder (1) and guide out. REMOVAL IMPORTANT Insert a SPECIAL TOOL long wedge between retaining plate (3) and control units holder (1) and release retaining plate (3) in area of mount (arrow B).
INSTALLATION IMPORTANT Position guides (arrows A) of retaining plate (3) in mounts at control units holder (1) and engage retaining plate (3) at mount (arrow B).
SPECIAL TOOL Long wedge
Fig 1
6 Operate catch hooks (3.1) and remove sound generator control unit (N12/2) from retaining plate (3). IMPORTANT Note assembly position of sound generator control unit (N12/2) at retaining plate (3).  
7 Install in the reverse order.    
8 Commission sound generator control unit (N12/2). If sound generator control unit (N12/2) was replaced.  
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-S-2000-04E
INSPECT Check     
9 Perform function test of sound generator control unit (N12/2).    
Fig 1: Identifying Long Wedge (115 589 03 59 00)
G07070400Courtesy of MERCEDES-BENZ USA