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Home >> Mercedes Benz >> 2021 >> C63 AMG 2D Convertible >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Electrical System -- Engine -- 205 Chassis >> Testing & Repair >> Remove/Install Alternator - AR15.40-P-5032MNA

Remove/Install Alternator - AR15.40-P-5032MNA

Engine 177 in model 205 

Fig 1: Alternator Component Location - Model 205 W/ Engine 177
G14814292Courtesy of MERCEDES-BENZ USA
DANGER Risk of death  caused by vehicle slipping or toppling off during lifting Only lift vehicle at the lift support points specified by the vehicle manufacturer. AS00.00-Z-0032-01A
REMOVINGINSTALLING Remove/install     
1 Detach battery ground line   AR54.10-P-0003LW
2 Remove scissor strut on front axle carrier TORQUE SPECIFICATION Bolt, front diagonal strut to front axle carrier/torsion bar bearing shell/radiator mounting console *BA61.10-P-1006-01L 
3 Disconnect steering coupling   AR46.10-P-8000LW
4 Unclip electrical wiring harness of steering at front axle carrier    
5 Detach steering at front axle carrier and fix outside the working area   AR46.20-P-0600LW
6 Attach engine hoist and raise engine until the engine mount is not under tension   AR33.10-P-0105LW
7 Detach right and left engine mount from engine support   AR22.10-P-4330MNA
8 Release and disconnect electrical connection on right engine mount Engine 177 in model 205 with code P71 (AMG DYNAMIC PLUS package)  
      AR22.10-P-4330MNA
9 Raise engine further NOTES
Ensure during lifting that no cables and lines lie on the bulkhead.
Damage can occur to cables and lines otherwise.
 
10 Detach bracket for electrical line (4) of alternator (1) at oil pan    
11 Detach electrical line (4) on alternator (1)   AR15.40-P-5032-01MNA 
    TORQUE SPECIFICATION Nut, positive line to alternator *BA15.40-P-1003-01T 
12 Release and disconnect electrical connection (5)   AR15.40-P-5032-01MNA 
    TORQUE SPECIFICATION Nut, positive line to alternator1 *BA15.40-P-1003-01T 
13 Remove alternator poly-V belt (1)   AR13.22-P-0003MNA
    IMPORTANT The poly-V belt of the air conditioning system A/C compressor must not be removed  
14 Turn clamping device for poly-V belt () counterclockwise, pull out drift and detension clamping device for the poly-V belt ()    
15 Remove screw/bolts (2) TORQUE SPECIFICATION Screw/bolt, control unit bracket to engine support/belt tensioner carrier/alternator bracket *BA07.08-P-1001-01G 
16 Remove screw/bolts (6) and remove alternator (1) downwards TORQUE SPECIFICATION Bolt, alternator to alternator bracket *BA15.40-P-1001-01T 
17 Install in the reverse order    
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
18 Perform an engine test run and check for proper operation of alternator    
CONTROL UNIT

Number Designation Engine 177
BA07.08-P-1001-01G Screw/bolt, control unit bracket to engine support/belt tensioner carrier/alternator bracket Nm 9
ALTERNATOR

Number Designation Engine 177
BA15.40-P-1001-01T Bolt, alternator to alternator bracket Nm 20
ALTERNATOR

Number Designation Engine 177
BA15.40-P-1003-01T Nut, positive line to alternator Nm 16
FRAME FLOOR ASSEMBLY

Number Designation Model 205
BA61.10-P-1006-01L Bolt, front diagonal strut to front axle carrier/torsion bar bearing shell/radiator mounting console Nm 50