LEMON Manuals: Even more car manuals for everyone
Home >> Mercedes Benz >> 2021 >> CLS450 Base >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> Automatic Transmission - 257 Chassis 1 Of 2 >> Testing & Repair >> Remove/Install Automatic Transmission With Torque Converter - AR27.10-P-0500MSA

Remove/Install Automatic Transmission With Torque Converter - AR27.10-P-0500MSA

Transmission 725.0 in model 213, 238, 257, 290 with engine 256 

Fig 1: Automatic Transmission Components Location - Transmission 725.0 In Model 257 With Engine 256
G14548364Courtesy of MERCEDES-BENZ USA
G14548365Courtesy of MERCEDES-BENZ USA
DANGER Risk of death  caused by vehicle slipping or toppling off of the lifting platform. Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer. AS00.00-Z-0010-01A
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
CAUTION Risk of injury  to skin and eyes due to handling of transmission oil. Health risk caused by swallowing transmission oil Wear protective gloves, protective clothing and safety glasses.
Do not pour transmission oil into beverage bottles.		 AS00.40-Z-0001-01A
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
Notice  Notes on threaded connections fastened using a tightening angle-based tightening process   AH00.00-P-0020-01A
  Notes on automatic transmission   AH27.19-P-0001-01NKB 
REMOVING Remove     
1 Secure vehicle on vehicle lift. Transmission 725.0 in model 213, 238 with engine 256 AR00.60-P-0100CW
    Transmission 725.0 in model 257, 290 with engine 256 AR00.60-P-0100-01A
2 Shift the transmission (1) into neutral position.    
3 Release parking brake.    
4 Disconnect ground line on battery. Transmission 725.0 in model 213 with engine 256 AR54.10-P-0003LW
    Transmission 725.0 in model 238 with engine 256 AR54.10-P-0003LWO
    Transmission 725.0 in model 257, 290 with engine 256 AR54.10-P-0003FR
5 Remove center and rear lower engine compartment lining. Transmission 725.0 in model 290 with engine 256 AR61.20-P-1105FRX
    Transmission 725.0 in model 213, 238 with engine 256 AR61.20-P-1105LWE
    Transmission 725.0 in model 257 with engine 256 AR61.20-P-1105FR
6 Remove front axle differential propeller shaft (4) from front axle differential. Transmission 725.0 in model 213, 238, 257, 290 with engine 256
with code M005 (Vehicles with 4MATIC/all-wheel drive)		  
    Transmission 725.0 in model 213.061/261, 238.361/461, 257, 290 with engine 256
with code M005 (Vehicles with 4MATIC/all-wheel drive)		 AR41.10-P-0070MSA
7 Disconnect and remove ground line (2).    
8 Remove heat shield from transmission (1).   AR27.40-P-0700-01LF
9 Release, disconnect and remove electrical connector of transmission (1).    
10 Remove oil lines.   AR27.55-P-0600MSA
11 Remove oil cooler from transmission (1), place to one side with connected coolant hoses and secure.   AR27.55-P-1000MSA
12 Remove propeller shaft. Transmission 725.0 in model 213, 238 with engine 256 AR41.10-P-0050LW
    Transmission 725.0 in model 257 with engine 256 AR41.10-P-0050MSA
    Transmission 725.0 in model 290 with engine 256 AR41.10-P-0050MNI
13 Remove cover (3).    
14 Remove fan unit. Transmission 725.0 in model 213, 238, 257, 290 with engine 256.9 AR20.40-P-5050MSA
15 Detach torque converter (10) from integrated starter-alternator (A79).   AR27.20-P-0001-01EWM 
    NOTES Do not use an impact wrench or compressed air tool to remove the bolts.
Otherwise, the threaded unions (14) in the integrated starter-alternator (A79) will be damaged.		  
    SPECIAL TOOL Counterholder Fig 3
    SPECIAL TOOL Long wedge Fig 2
16 Support transmission (1) with major-assembly support and mounting plate and strap down securely.    
REFER TO SPECIAL TOOLS 000 588 10 62 00 Support plate   WS26.00-P-3309B
REFER TO SPECIAL TOOLS 000 588 11 62 00 Major assembly mount   WS01.00-P-0092B
17 Remove rear engine carrier from underbody. Transmission 725.0 in model 213, 238, 257, 290 with engine 256.9
NOTES
Never use an impact wrench or compressed-air tool to remove the screws! Otherwise, the threads may be damaged.		 AR22.10-P-4360MSA
18 Remove holder of 48 V wiring harness from transmission (1).    
19 Remove screws (19).    
20 Remove transmission (1) with torque converter (10) and front axle differential propeller shaft (4).    
REFER TO SPECIAL TOOLS 000 588 11 62 00 Major assembly mount   WS01.00-P-0092B
REFER TO SPECIAL TOOLS 000 588 10 62 00 Support plate   WS26.00-P-3309B
    NOTES
Secure the torque converter (10) to prevent it from dropping down.
Damage will otherwise occur.		  
21 Remove torque converter (10). If necessary.  
      AR27.20-P-0050EWM 
22 Remove front axle differential propeller shaft (4) from transmission (1). Transmission 725.0 in model 213, 238, 257, 290 with engine 256
with code M005 (Vehicles with 4MATIC/all-wheel drive) If necessary.		  
23 Remove corrosion from crankshaft.   AR03.20-P-1000-01A
    Assembly cleaner *BR00.45-Z-1028-04A 
    Multi-purpose paste *BR00.45-Z-1009-06A 
24 Remove seal (15) between transmission (1) and timing case cover.    
25 Check threaded unions (14). If threaded unions (14) are damaged or loose, ↓
replace integrated starter alternator (A79).		  
    Transmission 725.0 in model 213, 238, 257, 290 with engine 256.9 AR15.40-P-0003MSA
INSTALLING Install     
26 Position seal (15) between transmission (1) and timing case cover. IMPORTANT Replace seal (15).  
27 Insert torque converter (10). After removing the torque converter (10).  
      AR27.20-P-0050EWM 
28 Install transmission (1) with torque converter (10) and front axle differential propeller shaft (4).    
REFER TO SPECIAL TOOLS 000 588 10 62 00 Support plate   WS26.00-P-3309B
REFER TO SPECIAL TOOLS 000 588 11 62 00 Major assembly mount   WS01.00-P-0092B
    IMPORTANT When doing so, align bores of torque converter (10) with the threaded unions (14) in the integrated starter alternator (A79).  
29 Tighten screws (19). TORQUE SPECIFICATION Screw/bolt, transmission to engine *BA27.10-P-1001-04H 
30 Attach holders of 48 V wiring harness at transmission (1). TORQUE SPECIFICATION M6X1 *BA00.10-P-1002-04A 
31 Install rear engine carrier at underbody. Transmission 725.0 in model 213, 238, 257, 290 with engine 256.9 AR22.10-P-4360MSA
    NOTES
Never use an impact wrench or compressed-air tool to remove the screws! Otherwise, the threads may be damaged.		  
32 Unfasten strapping from transmission (1) and lower major-assembly support and mounting plate.    
REFER TO SPECIAL TOOLS 000 588 10 62 00 Support plate   WS26.00-P-3309B
REFER TO SPECIAL TOOLS 000 588 11 62 00 Major assembly mount   WS01.00-P-0092B
33 Attach torque converter (10) at integrated starter-alternator (A79).   AR27.20-P-0001-01EWM 
    NOTES
Do not use an impact wrench or compressed air tool to tighten the screws.
Otherwise, the threaded unions (14) in the integrated starter-alternator (A79) will be damaged.		  
    TORQUE SPECIFICATION Screw, torque converter/rotor to drive plate/star-shaped drive plate *BA27.20-P-1001-01D 
    SPECIAL TOOL Counterholder Fig 3
    SPECIAL TOOL Long wedge Fig 2
34 Install fan unit. Transmission 725.0 in model 213, 238, 257, 290 with engine 256.9 AR20.40-P-5050MSA
35 Install cover (3).    
36 Install propeller shaft. Transmission 725.0 in model 290 with engine 256 AR41.10-P-0050MNI
    Transmission 725.0 in model 213, 238 with engine 256 AR41.10-P-0050LW
    Transmission 725.0 in model 257 with engine 256 AR41.10-P-0050MSA
37 Release mount of oil cooler and install oil cooler at transmission (1).   AR27.55-P-1000MSA
38 Install oil lines.   AR27.55-P-0600MSA
39 Plug in electrical connector of transmission (1) and lock.    
40 Attach heat shield to transmission (1).   AR27.40-P-0700-01LF
    TORQUE SPECIFICATION Screw/bolt, heat shield to oil pan *BA27.10-P-1009-04H 
41 Connect ground line (2). TORQUE SPECIFICATION Transmission 725.0 in model 238 with engine 256Bolt/nut, ground line to transmission/underfloor *BA00.19-P-1039-02B 
    TORQUE SPECIFICATION Transmission 725.0 in model 213 with engine 256Bolt/nut, ground line to transmission/underfloor *BA00.19-P-1038-02A 
    TORQUE SPECIFICATION Transmission 725.0 in model 257, 290 with engine 256Bolt/nut, ground line to transmission/underfloor *BA00.19-P-1039-02D 
42 Install front axle differential propeller shaft (4) on front axle differential. Transmission 725.0 in model 213, 238, 257, 290 with engine 256
with code M005 (Vehicles with 4MATIC/all-wheel drive)		  
    Transmission 725.0 in model 213.061/261, 238.361/461, 257, 290 with engine 256 with code M005 (Vehicles with 4MATIC/all-wheel drive) AR41.10-P-0070MSA
43 Connect ground line to battery. Transmission 725.0 in model 213 with engine 256 AR54.10-P-0003LW
    Transmission 725.0 in model 238 with engine 256 AR54.10-P-0003LWO
    Transmission 725.0 in model 257, 290 with engine 256 AR54.10-P-0003FR
44 Check and correct transmission oil level.   AR27.00-P-0270EWN 
45 Read out and delete fault memory.    
REFER TO SELF-DIAGNOSTIC SYSTEMS   Transmission 725.0 in model 213 with engine 256 AD00.00-P-2000-04B
REFER TO SELF-DIAGNOSTIC SYSTEMS   Transmission 725.0 in model 238 with engine 256 AD00.00-P-2000-06LWO
REFER TO SELF-DIAGNOSTIC SYSTEMS   Transmission 725.0 in model 257, 290 with engine 256 AD00.00-P-2000-06FR
46 Perform transmission adaptation with vehicle diagnosis system. After replacement or repair of the transmission (1).  
REFER TO SELF-DIAGNOSTIC SYSTEMS   Transmission 725.0 in model 213 with engine 256 AD00.00-P-2000-04B
REFER TO SELF-DIAGNOSTIC SYSTEMS   Transmission 725.0 in model 238 with engine 256 AD00.00-P-2000-06LWO
REFER TO SELF-DIAGNOSTIC SYSTEMS   Transmission 725.0 in model 257, 290 with engine 256 AD00.00-P-2000-06FR
47 Reset data on service life of torque converter lockup clutch with the vehicle diagnosis system. After replacement or repair of the torque converter (10).  
REFER TO SELF-DIAGNOSTIC SYSTEMS   Transmission 725.0 in model 213 with engine 256 AD00.00-P-2000-04B
REFER TO SELF-DIAGNOSTIC SYSTEMS   Transmission 725.0 in model 238 with engine 256 AD00.00-P-2000-06LWO
REFER TO SELF-DIAGNOSTIC SYSTEMS   Transmission 725.0 in model 257, 290 with engine 256 AD00.00-P-2000-06FR
48 Check transmission (1) for proper operation and leak tightness.    
49 Install center and rear lower engine compartment lining. Transmission 725.0 in model 213, 238 with engine 256 AR61.20-P-1105LWE
    Transmission 725.0 in model 290 with engine 256 AR61.20-P-1105FRX
    Transmission 725.0 in model 257 with engine 256 AR61.20-P-1105FR
50 Disconnect vehicle from vehicle lift. Transmission 725.0 in model 213, 238 with engine 256 AR00.60-P-0100CW
    Transmission 725.0 in model 257, 290 with engine 256 AR00.60-P-0100-01A
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
GROUND POINTS

Number Designation Model 213 up to model year 2020 Model 213
as of model year 2021
BA00.19-P-1038-02A Bolt/nut, ground line to transmission/underfloor M8 Nm 20 20
GROUND POINTS

Number Designation Model 238
BA00.19-P-1039-02B Bolt/nut, ground line to transmission/underfloor M8 Nm 20
GROUND POINTS

Number Designation Model 257 Model 290
BA00.19-P-1039-02D Bolt/nut, ground line to transmission/underfloor M8 Nm 20 20
AUTOMATIC TRANSMISSION COMPLETE

Number Designation Transmission 725.0/1
BA27.10-P-1001-04H Screw/bolt, transmission to engine Nm 39
AUTOMATIC TRANSMISSION COMPLETE

Number Designation Transmission 725.0/1
BA27.10-P-1009-04H Screw/bolt, heat shield to oil pan Nm 9
TORQUE CONVERTER

Number Designation Transmission 725.0/1
BA27.20-P-1001-01D Screw, torque converter/Angled threaded rotor to drive plate/star- connection shaped drive plate Stage 1 Nm 3
Stage 2 Nm 30
Stage 3 ∠° 90
Fig 2: Identifying Long Wedge (115 589 03 59 00)
G11128618Courtesy of MERCEDES-BENZ USA
Fig 3: Identifying Counterholder (654 589 00 40 00)
G11971953Courtesy of MERCEDES-BENZ USA
REPAIR MATERIALS

Number Designation Order number
BR00.45-Z-1009-06A Multi-purpose paste A 000 989 80 51
BR00.45-Z-1028-04A Assembly cleaner A 000 986 56 01
scientia non olet · About LEMON Manuals