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Home >> Mercedes Benz >> 2019 >> S450 Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> Engine Control Systems >> Mixture Formation - 222 Chassis (2 Of 3) >> Testing & Repair >> Remove/Install Engine Management Control Unit (MCM) >> Remove/Install Engine Management Control Unit (MCM) - AR07.08-P-7013MNL
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Remove/Install Engine Management Control Unit (MCM) - AR07.08-P-7013MNL

Engine 176 in model 217, 222 

Shown on model 222 

Fig 1: Engine Management Control Unit (MCM) Components Location - Engine 176 In Model 222
G15366196Courtesy of MERCEDES-BENZ USA
CAUTION Risk of injury  caused by scraping or cutting body parts on sharp vehicle parts Always wear protective gloves when working on or near sharp and non-deburred vehicle parts.
Deburr repair panels.
AS00.00-Z-0017-01A
Notice  Notes on self-locking nuts and bolts   AH00.00-P-0001-01KOA
Notice  Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
REMOVINGINSTALLING Remove/install     
1 Start control unit replacement with diagnostic system When replacing the ME-SFI [ME] control unit (N3/10).  
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-04B
2 Switch off ignition and store transmitter key outside of transmission range (at least 2 m)    
3 Remove cover above ME-SFI [ME] control unit (N3/10)    
4 Remove cable duct (1) from triangular strut (2) and place to one side with attached lines    
5 Remove retaining bracket (4)    
6 Remove screws/bolts (3) and triangular strut (2) TORQUE SPECIFICATION Bolt, reinforcement to firewall/longitudinal member/reinforcement, center *BA62.25-P-1001-01B 
    TORQUE SPECIFICATION Bolt, reinforcement to suspension strut support *BA62.25-P-1002-01B 
7 Release catch tab on base module mounting of the ME-SFI [ME] control unit (N3/10) and remove ME-SFI [ME] control unit (N3/10) upward    
8 Release and disconnect electrical connectors (5) on ME-SFI [ME] control unit (N3/10)    
9 Reuse bracket of ME-SFI [ME] control unit (N3/10) When replacing the ME-SFI [ME] control unit (N3/10).  
10 Install in the reverse order    
11 Read out and erase fault memory    
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-04B
WARNING Risk of accident  from vehicle starting off by itself when engine running. Risk of injury  (bruises and burns) resulting from working on the engine while it is being started or when it is running. Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts. AS00.00-Z-0005-01A
12 Perform an engine test run and check engine for proper function    
FIREWALL

Number Designation Model 217 Model 222
BA62.25-P-1001-01B Bolt, reinforcement to firewall/longitudinal member/reinforcement, center M6 Nm 9 9
M8 Nm 30 30
FIREWALL

Number Designation Model 217 Model 222
BA62.25-P-1002-01B Bolt, reinforcement to suspension strut support M8 Nm 30 30