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Home >> Mercedes Benz >> 2021 >> CLS53 AMG >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Electrical System - Body - 257 Chassis 3 Of 8 >> Testing & Repair >> Remove/Install WLAN Antenna - AR82.85-P-0004FR

Remove/Install WLAN Antenna - AR82.85-P-0004FR

Model 257, 290 

up to model year 2021 

Shown on model 257.### 1# 

Fig 1: WLAN Antenna Component Location - Model 257 Up To Model Year 2021
G14549619Courtesy of MERCEDES-BENZ USA
G14549620Courtesy of MERCEDES-BENZ USA
Topical note Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
REMOVING Remove     
1 Remove glove compartment (1).   AR68.10-P-1402FR
2 Remove head unit (A26/17) far enough to gain access to electrical connectors at rear of unit.   AR82.85-P-1101FR 
3 Place head unit (A26/17) to one side with electrical lines connected. NOTES
Place head unit (A26/17) on a clean dry cloth. Otherwise, components of the instrument panel or center console may be damaged.
 
4 Disconnect electrical line (3) of WiFi antenna (A2/83) from slot (5) of head unit (A26/17).    
5 Cut through electrical line (3) of WiFi antenna (A2/83) at both ends as close as possible to instrument panel wiring harness. IMPORTANT The factory installed electrical line (3) is permanently integrated into the instrument panel wiring harness. Therefore, the WLAN antenna (A2/83) must be cut off when replacing. The factory installed electrical line (3) remains in the vehicle.  
6 Remove severed section of factory-installed electrical line (3).    
7 Unclip WiFi antenna (A2/83) from instrument panel crossmember (2) and remove.    
INSTALLING Install     
8 Clip new WiFi antenna (A2/83) into instrument panel crossmember (2).    
9 Route electrical line (3) of new WiFi antenna (A2/83) along instrument panel wiring harness to device installation slot of head unit (A26/17) and fix in place with cable ties.    
10 Connect electrical line (3) of new WiFi antenna (A2/83) to slot (5) of head unit (A26/17).    
11 Install head unit (A26/17).   AR82.85-P-1101FR 
12 Install glove compartment (1).   AR68.10-P-1402FR