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Home >> Mercedes Benz >> 2016 >> C450 AMG >> Repair and Diagnosis >> Accessories & Equipment >> Collision/Avoidance >> Electrical System, Equipment & Instruments - 205 Chassis - 3 Of 5 >> Testing & Repair >> Remove/Install Rear SAM Control Unit >> Remove/Install Rear SAM Control Unit - AR54.21-P-1269LWR

Remove/Install Rear SAM Control Unit - AR54.21-P-1269LWR

Model 205.4 

up to model year 2019 

Fig 1: Rear SAM Control Unit Components Location - Model 205.4 Up To Model Year 2019
G13021727Courtesy of MERCEDES-BENZ USA

Shown with code 501 (360° camera), code 537 (Digital radio (DAB)), code 865 (TV tuner) and code U77 (BlueTEC (SCR) diesel exhaust treatment) 

  Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
  Notes on safety-relevant components   AH00.00-Z-0019-01A
REMOVINGINSTALLING Remove/install     
1 Commission rear SAM control unit (N10/8). When replacing the rear SAM control unit (N10/8).  
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-04B
2 Switch off ignition and store transmitter key outside of transmission range (min. 2 m).    
3 Remove rear trunk floor.    
4 Remove luggage compartment well cover.    
5 Release electrical wiring harness (4) from bracket (5).    
6 Unscrew nuts (1), remove bolts (2) and place bracket (3) on trunk floor with installed control units toward front. Model 205.4 up to model year 2019
with code 501 (360° camera)
Model 205.4 up to model year 2019
with code 536 (SIRIUS satellite radio)
Model 205.4 up to model year 2019
with code 537 (Digital radio (DAB))
Model 205.4 up to model year 2019
with code 865 (TV tuner)
The electrical connectors of the control units must not be disconnected.
 
7 Release lower electrical connector (6), remove from bracket (5) together with upper electrical connector (6) and place to one side.    
8 Remove rear fuse and relay module (K40/5) from bracket (5) and place to one side with lines attached.    
9 Unscrew nuts (7).    
10 Place bracket (5) to one side with control units connected.    
11 Disconnect electrical connectors from rear SAM control unit (N10/8). IMPORTANT The electrical connections are coded and cannot be interchanged.
The number of electrical connectors may vary depending on the equipment.
 
12 Remove screw/bolt (8).    
13 Guide rear SAM control unit (N10/8) out of holder (5).    
14 Install in the reverse order.