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Home >> Mercedes Benz >> 2018 >> S450 Base >> Repair and Diagnosis >> Engine Performance >> Tune-Up >> Mixture Formation - 222 Chassis (2 Of 3) >> Testing & Repair >> Remove/Install Engine Management (MCM) Control Unit Holder - AR07.08-P-7016MNM

Remove/Install Engine Management (MCM) Control Unit Holder - AR07.08-P-7016MNM

Engine 177 in model 217, 222 

G15366200Courtesy of MERCEDES-BENZ USA
G15366201Courtesy of MERCEDES-BENZ USA
G15366202Courtesy 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
Topical note  Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
REMOVINGINSTALLING Remove/install     
1 Remove engine management control unit and place to one side with coolant lines connected   AR07.08-P-7013MNM 
2 Release and disconnect electrical connection of boost pressure control pressure transducer (Y77/1)    
3 Remove screw/bolts (4) TORQUE SPECIFICATION M6X1 *BA00.10-P-1002-04A 
4 Unlock and disconnect the electrical connectors of the ignition coil for cylinder 1+2 (T4)    
5 Unlock and disconnect the electrical connectors of the ignition coil for cylinder 3+4 (T41)    
6 Unclip retaining clip (18) from high-pressure line    
7 Remove retaining clip (7) from bracket for engine management control unit (5)    
8 Remove retaining clip (11) from bracket for engine management control unit (5)    
9 Remove retaining clip (17) from bracket for engine management control unit (5)    
10 Remove retaining clip (20) from engine suspension lug    
11 Remove bolt (14) TORQUE SPECIFICATION M6X1 *BA00.10-P-1002-04A 
12 Release and disconnect electrical connection of CAMTRONIC actuator for intake cylinder 2 (Y49/11)    
13 Release and disconnect electrical connection (21)    
14 Release and disconnect electrical connection (19) of fuel injector cylinder 4 (Y76/4)    
15 Release and disconnect electrical connector of right charge air temperature sensor (B17/15)    
16 Remove vacuum hoses (10) from boost pressure control pressure transducer (Y77/1)    
17 Remove screws/bolts (8) TORQUE SPECIFICATION M6X1 *BA00.10-P-1002-04A 
18 Unclip bracket (12) at engine suspension lug    
19 Place engine wiring harness (1) with cable duct (2) to one side    
20 Remove bracket (5) for engine management control unit    
21 Remove elastomer bearings (6) at bracket for engine management control unit (5) When replacing the bracket of the engine management control unit (5).  
    INSTALLATION IMPORTANT : Coat elastomer bearings (6) with antifriction paste.  
    Antifriction paste, rubber parts 2.5 kg, DBL 6867.00
If damage occurs or faults on the elastomer bearing (6)
↓
Replace elastomer bearings (6).
*BR00.45-Z-1002-06A 
22 Remove boost pressure control pressure transducer (Y77/1) from bracket for engine management control unit (5) When replacing the bracket of the engine management control unit (5).  
23 Remove clamp (9) for upper engine cover When replacing the bracket of the engine management control unit (5).  
24 Install in the reverse order    
METRIC SCREWS/BOLTS AND NUTS AS PER MBN 10 105, 10 143

Number Designation 8.8 10.9
BA00.10-P-1002-04A M6X1 Nm 9 13
REPAIR MATERIALS

Number Designation Order number
BR00.45-Z-1002-06A Antifriction paste, rubber parts 2.5 kg, DBL 6867.00 A 000 989 01 60