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Home >> Mercedes Benz >> 2021 >> E350 Base >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Mixture Formation - 213 Chassis 3 Of 5 >> Testing & Repair >> Remove/Install ME-SFI Control Unit >> Remove/Install ME-SFI Control Unit - AR07.08-P-1000MSA
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Remove/Install ME-SFI Control Unit - AR07.08-P-1000MSA

Engine 256.9 in model 213, 238, 257, 290 

Fig 1: ME-SFI Control Unit Components Location - Engine 256.9 In Model 213
G13744490Courtesy 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
  Notes on avoiding damage through contamination and foreign objects   AH00.00-P-5000-01A
  Notes on avoiding damage to ignition system   AH15.10-P-0002-01V
  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 Start control unit replacement with vehicle diagnosis system. When replacing the ME-SFI [ME] control unit (N3/10).  
REFER TO SELF-DIAGNOSTIC SYSTEMS   Engine 256.9 in model 213 AD00.00-P-2000-04B
REFER TO SELF-DIAGNOSTIC SYSTEMS   Engine 256.9 in model 238 AD00.00-P-2000-06LWO
REFER TO SELF-DIAGNOSTIC SYSTEMS   Engine 256.9 in model 257, 290 AD00.00-P-2000-06FR
2 Switch off the ignition and keep the transmitter keys outside the transmitter range (at least 2 m).    
3 Disconnect ground line from battery. Engine 256.9 in model 213 AR54.10-P-0003LW
    Engine 256.9 in model 238 AR54.10-P-0003LWO
    Engine 256.9 in model 257, 290 AR54.10-P-0003FR
4 Remove engine cover (1).   AR01.10-P-2405MSA
5 Remove screw/bolts (2). TORQUE SPECIFICATION Bolt, ME-SFI control unit to air filter housing *BA09.10-P-1002-01MRT 
6 Release and disconnect electrical connectors (3, 4).    
7 Remove ME-SFI [ME] control unit (N3/10).    
INSPECT Check     
8 Check seal in air filter housing for correct seating and damage and replace if necessary.    
9 Install in the reverse order.    
INSPECT Check     
10 Read out and delete fault memory.    
REFER TO SELF-DIAGNOSTIC SYSTEMS   Engine 256.9 in model 213 AD00.00-P-2000-04B
REFER TO SELF-DIAGNOSTIC SYSTEMS   Engine 256.9 in model 238 AD00.00-P-2000-06LWO
REFER TO SELF-DIAGNOSTIC SYSTEMS   Engine 256.9 in model 257, 290 AD00.00-P-2000-06FR
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
11 Perform an engine test run and check the engine for proper function.    
AIR CLEANER HOUSING

Number Designation Engine 256.9
BA09.10-P-1002-01MRT Bolt, ME-SFI control unit to air filter housing Nm 6