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Home >> Mercedes Benz >> 2014 >> CLA250 Base >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Electrical System, Equipment & Instruments - 117 Chassis >> Testing & Repair >> Remove/install engine sound control unit - AR54.21-P-0024NKC

Remove/install engine sound control unit - AR54.21-P-0024NKC

MODEL 117 with CODE B63 (Sporty engine sound) 

Fig 1: Engine Sound Control Unit Remove/Install Components
G11065697NOTESREMOVINGINSTALLINGREFER TO SELF-DIAGNOSTIC SYSTEMSCourtesy of MERCEDES-BENZ USA
NOTES Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
REMOVINGINSTALLING Remove/install     
1 Perform commissioning of engine sound control unit (N40/1) When replacing the engine sound control unit (N40/1).  
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-04A
2 Remove center console cover at front   AR68.20-P-2350NKB
3 Unscrew nuts (1)    
4 Take out engine sound control unit (N40/1) far enough until the electrical connector on the engine sound control unit (N40/1) is accessible    
5 Release and disconnect electrical connector on engine sound control unit (N40/1)    
6 Take out engine sound control unit (N40/1)    
7 Install in the reverse order