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Home >> Mercedes Benz >> 2017 >> GLS450 >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> Automatic Transmission - 166 Chassis 2 Of 4 >> Testing & Repair >> Remove/Install Transmission With Torque Converter >> Remove/Install Transmission With Torque Converter - AR27.10-P-0500GN

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

Transmission 725.0 in model 166 with engine 651 

Transmission 725.0 in model 166, 292 with engine 276 

Transmission 725.0 in model 166, 292 with engine 278 

Transmission 725.0 in model 166, 292 with engine 642 

G14134938Courtesy of MERCEDES-BENZ USA

Shown on transfer case with code 430 (On & off-road package) 

G14134939Courtesy of MERCEDES-BENZ USA
G14134940Courtesy 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
WARNING Risk of injury  . Moving parts can pinch, crush or, in extreme cases even sever extremities. No parts of the body or limbs should be within the operating area of mechanical components when moving components. AS00.00-Z-0009-01A
WARNING Risk of injury  . Skin or eye injuries may result
when handling hot or glowing objects.
Wear protective gloves, protective clothing and safety glasses, if necessary. AS00.00-Z-0002-01A
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
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  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
Notice  Notes on Bolted connections with self tapping screws   AH00.00-P-0007-01SF
Notes on self-locking nuts and Bolts   AH00.00-N-0001-01A
  Notes on automatic transmission   AH27.19-P-0001-01NKB
REMOVING Remove     
1 Shift the Transmission (1) into neutral position    
2 Release parking brake and secure vehicle to prevent it from rolling.    
3 Disconnect ground line from battery.   AR54.10-P-0003GZ
4 Secure vehicle on vehicle lift.   AR00.60-P-0100GZ
5 Remove diesel particulate filter. Transmission 725.0 in model 166, 292 with engine 642 AR49.10-P-5501OGR
6.1 Remove exhaust system. Transmission 725.0 in model 166 with engine 651
Transmission 725.0 in model 166, 292 with engine 642
 
    Transmission 725.0 in model 292 with engine 642 AR49.10-P-7142OGR
    Transmission 725.0 in model 166 with engine 642 AR49.10-P-7100GQB
    Transmission 725.0 in model 166 with engine 651  
6.2 Remove center exhaust system. Transmission 725.0 in model 166, 292 with engine 276
Transmission 725.0 in model 166, 292 with engine 278
 
      AR49.10-P-7283MLJ
7 Remove left and right exhaust system holder from Transmission (1). Transmission 725.0 in model 166, 292 with engine 276  
8 Remove heat shield (8) from Transmission (1).   AR27.40-P-0700-01GZ 
9 Release electrical connector (9) from Transmission (1), disconnect, and remove wiring harness from Transmission (1).    
10 Remove oil lines (10a, 10b) from Transmission (1) and place to one side.   AR27.55-P-0600GQ
11 Release and disconnect electrical connector from auxiliary oil pump (7). Transmission 725.0 in model 166, 292 with engine 642
with code B03 (ECO start/stop function)
 
12 Remove additional oil filter with holder and place to one side with lines still connected. Transmission 725.0 in model 292 with engine 276
Transmission 725.0 in model 292 with engine 278
Transmission 725.0 in model 292 with engine 642
If installed.
 
      AR27.56-P-0202AVG
13 Remove cover (11).    
14 Detach torque converter (2) from drive plate.   AR27.20-P-0001-01EWM 
    SPECIAL TOOL Long wedge Fig 3
    SPECIAL TOOL Socket wrench bit Fig 2
15 Remove heat shield (12) from transfer case (15). Transmission 725.0 in model 166 with engine 651
with code 430 (On & off-road package)
Transmission 725.0 in model 166, 292 with engine 276.8
with code 430 (On & off-road package)
Transmission 725.0 in model 166, 292 with engine 278
with code 430 (On & off-road package)
Transmission 725.0 in model 166, 292 with engine 642
with code 430 (On & off-road package)
 
16 Remove rear propeller shaft (6b) from output flange of transfer case (15) or adapter housing, place to one side and fix in place.   AR41.10-P-0050-17GZ
    SPECIAL TOOL Retainer wrench Fig 1
17 Remove front propeller shaft (6a) from output flange of transfer case (15), place to one side and fix in place. Transmission 725.0 in model 166 (except 166.006) with engine 651
Transmission 725.0 in model 166 (except 166.058), 292 with engine 276
Transmission 725.0 in model 166, 292 with engine 278
Transmission 725.0 in model 166, 292 with engine 642
AR41.10-P-0070-03GZ
    SPECIAL TOOL Retainer wrench Fig 1
18 Release, disconnect and unclip electrical connectors (15a) from transfer case (15). Transmission 725.0 in model 166 with engine 651
with code 430 (On & off-road package)
Transmission 725.0 in model 166, 292 with engine 276
with code 430 (On & off-road package)
Transmission 725.0 in model 166, 292 with engine 278
with code 430 (On & off-road package)
Transmission 725.0 in model 166, 292 with engine 642
with code 430 (On & off-road package)
 
19 Support Transmission (1) with major-assembly support and mounting plate and strap down securely.    
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
20 Remove rear engine crossmember. Transmission 725.0 in model 166 with engine 276
Transmission 725.0 in model 166 with engine 642
Transmission 725.0 in model 166 with engine 651
Transmission 725.0 in model 166, 292 with engine 278
AR22.10-P-1180GQ
    Transmission 725.0 in model 292 with engine 276
Transmission 725.0 in model 292 with engine 642
AR22.10-P-4360OGR
21 Unfasten starter wiring harness from Transmission (1).    
22 Remove starter from Transmission (1), and place with attached lines to one side and secure against falling down. Transmission 725.0 in model 166 with engine 276.9 AR15.30-P-7100GQA
    Transmission 725.0 in model 166 with engine 651 AR15.30-P-7100CD
    Transmission 725.0 in model 166, 292 with engine 276.8 AR15.30-P-7100GQ
    Transmission 725.0 in model 166, 292 with engine 278 AR15.30-P-7100MLJ
    Transmission 725.0 in model 166, 292 with engine 642 AR15.30-P-7100OGR
23 Unscrew screws of Transmission (1) on engine    
24 Remove Transmission (1) with transfer case (15).    
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 torque converter (2) against falling down.
Damage will otherwise occur.
 
25 Remove torque converter (2). If necessary. AR27.20-P-0050EWM 
26 Remove corrosion from crankshaft.   AR03.20-P-1000-01A
    Multi-purpose paste *BR00.45-Z-1009-06A 
    Assembly cleaner *BR00.45-Z-1028-04A 
27 Check threaded unions of drive plate for damage and loose seating. If damaged or loose threaded unions are present:

Replace drive plate.
 
    Transmission 725.0 in model 166 with engine 651 AR03.30-P-8001CD
    Transmission 725.0 in model 166, 292 with engine 276 AR03.30-P-8001GQ
    Transmission 725.0 in model 166, 292 with engine 278 AR03.30-P-8001MLJ
    Transmission 725.0 in model 166, 292 with engine 642 AR03.30-P-8001OGR
INSTALLING Install     
28 Insert torque converter (2) into Transmission (1). After removal of torque converter (2).  
      AR27.20-P-0050EWM 
29 Install Transmission (1) with transfer case (15).    
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 NOTES
Secure torque converter (2) against falling down.
Damage will otherwise occur.
IMPORTANT While doing so, align bore of torque converter (2) with threaded unions in drive plate.
WS01.00-P-0092B
30 Screw tightly screws of Transmission (1) on engine. TORQUE SPECIFICATION Screw/ Bolt, Transmission to engine *BA27.10-P-1001-04H 
31 Release mounting of starter and mount starter onto Transmission (1). Transmission 725.0 in model 166 with engine 276.9 AR15.30-P-7100GQA
    Transmission 725.0 in model 166 with engine 651 AR15.30-P-7100CD
    Transmission 725.0 in model 166, 292 with engine 276.8 AR15.30-P-7100GQ
    Transmission 725.0 in model 166, 292 with engine 278 AR15.30-P-7100MLJ
    Transmission 725.0 in model 166, 292 with engine 642 AR15.30-P-7100OGR
32 Fasten starter wiring harness onto Transmission (1).    
33 Install rear engine crossmember. Transmission 725.0 in model 166 with engine 276
Transmission 725.0 in model 166 with engine 642
Transmission 725.0 in model 166 with engine 651
Transmission 725.0 in model 166, 292 with engine 278
AR22.10-P-1180GQ
    Transmission 725.0 in model 292 with engine 276
Transmission 725.0 in model 292 with engine 642
AR22.10-P-4360OGR
34 Release strapping on 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
35 Connect, lock and clip in electrical connectors (15a) at transfer case (15). Transmission 725.0 in model 166 with engine 651
with code 430 (Rear head restraints)
Transmission 725.0 in model 166, 292 with engine 276
with code 430 (On & off-road package)
Transmission 725.0 in model 166, 292 with engine 278
with code 430 (On & off-road package)
Transmission 725.0 in model 166, 292 with engine 642
with code 430 (On & off-road package)
 
36 Release fastening of front propeller shaft (6a) and attach front propeller shaft (6a) at output flange of transfer case (15). Transmission 725.0 in model 166 (except 166.006) with engine 651
Transmission 725.0 in model 166 (except 166.058), 292 with engine 276
Transmission 725.0 in model 166, 292 with engine 278
AR41.10-P-0070-03GZ
    Transmission 725.0 in model 166, 292 with engine 642  
    TORQUE SPECIFICATION Self-locking Bolt, drive shaft to front axle gear *BA41.10-P-1004-01F 
    TORQUE SPECIFICATION Self-locking Bolt, drive shaft to transfer case (to front axle) *BA41.10-P-1003-01F 
    SPECIAL TOOL Retainer wrench Fig 1
37 Release fastening of rear propeller shaft (6b) and attach rear propeller shaft (6b) at output flange of transfer case (15) or adapter housing.   AR41.10-P-0050-17GZ
    TORQUE SPECIFICATION Self-locking screw/ Bolt of propeller shaft at transfer case/adapter housing (to rear axle) *BA41.10-P-1001-01F 
    SPECIAL TOOL Retainer wrench Fig 1
38 Attach heat shield (12) to transfer case (15). Transmission 725.0 in model 166 with engine 651
with code 430 (On & off-road package)
Transmission 725.0 in model 166, 292 with engine 276
with code 430 (On & off-road package)
Transmission 725.0 in model 166, 292 with engine 278
with code 430 (On & off-road package)
Transmission 725.0 in model 166, 292 with engine 642
with code 430 (On & off-road package)
 
39 Install torque converter (2) on drive plate.   AR27.20-P-0001-01EWM 
    TORQUE SPECIFICATION Bolt, torque converter to drive plate/star-shaped drive plates *BA27.20-P-1001-01D 
    SPECIAL TOOL Long wedge Fig 3
    SPECIAL TOOL Socket wrench bit Fig 2
40 Install cover (11).    
41 Attach additional oil filter with holder. Transmission 725.0 in model 292 with engine 276
Transmission 725.0 in model 292 with engine 278
Transmission 725.0 in model 292 with engine 642
If installed.
 
      AR27.56-P-0202AVG
42 Connect and lock electrical connector at auxiliary oil pump (7). Transmission 725.0 in model 166, 292 with engine 642
with code B03 (ECO start/stop function)
 
43 Attach oil lines (10a, 10b) to Transmission (1).   AR27.55-P-0600GQ
44 Connect electrical connector (9) at Transmission (1), lock, and attach wiring harness to Transmission (1).    
45 Attach heat shield (8) to Transmission (1).   AR27.40-P-0700-01GZ 
46 Attach left and right exhaust system holder to Transmission (1). Transmission 725.0 in model 166, 292 with engine 276  
    TORQUE SPECIFICATION Bolt, exhaust system bracket to transmission *BA49.10-P-1020-01AK 
47.1 Install exhaust system. Transmission 725.0 in model 166 with engine 651
Transmission 725.0 in model 166, 292 with engine 642
 
    Transmission 725.0 in model 292 with engine 642 AR49.10-P-7142OGR
    Transmission 725.0 in model 166 with engine 642
Transmission 725.0 in model 166 with engine 651
AR49.10-P-7100GQB
47.2 Install center exhaust system. Transmission 725.0 in model 166, 292 with engine 276
Transmission 725.0 in model 166, 292 with engine 278
 
      AR49.10-P-7283MLJ
48 Install diesel particulate filter. Transmission 725.0 in model 166, 292 with engine 642 AR49.10-P-5501OGR
49 Check oil level in Transmission (1) and correct if necessary.   AR27.00-P-0270EWN 
50 Remove vehicle lift safety device and lower vehicle.   AR00.60-P-0100GZ
51 Connect ground line of battery.   AR54.10-P-0003GZ
52 Perform Transmission adaptation with vehicle diagnosis system. After replacement or repair of Transmission (1).  
REFER TO SELF DIAGNOSTIC SYSTEMS     AD00.00-P-2000-04A
53 Reset service life data for torque converter lockup clutch using diagnostic system. After replacement of torque converter (2).  
REFER TO SELF DIAGNOSTIC SYSTEMS     AD00.00-P-2000-04A
INSPECT Check     
WARNING Risk of burn injuries  , suffocation and poisoning when working on the exhaust system and the components connected to it. Risk of suffocation and risk of poisoning caused by inhalation of gaseous and solid components of the exhaust. Risk of poisoning  caused by skin contact with solid components of the exhaust. Wear protective clothing and safety glasses. Use the extraction system. Move people out of the hazard area. AS49.00-Z-0001-01A
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
54 Perform engine test run and check Transmission (1) for leak tightness and proper operation.    
AUTOMATIC TRANSMISSION COMPLETE

Number Designation Transmission 725.0
BA27.10-P-1001-04H Screw/ Bolt, Transmission to engine Nm 39
TORQUE CONVERTER

Number Designation Transmission 725.0
BA27.20-P-1001-01D Bolt, torque converter to Angled threaded drive plate/star-shaped connection drive plates Stage 1 Nm 3
Stage 2 Nm 30
Stage 3 ∠ ° 90
PROPELLER SHAFT

Number Designation Model 166 Model 292
BA41.10-P-1001-01F Self-locking screw/ Bolt of propeller shaft at transfer case/adapter housing (to rear axle) Stage 1 Nm 40 40
  Stage 2 ∠ ° 90 90
PROPELLER SHAFT

Number Designation Model 166 Model 292
BA41.10-P-1003-01F Self-locking Bolt, drive shaft to transfer case (to front axle) Stage 1 Nm 40 40
  Stage 2 ∠ ° 90 90
PROPELLER SHAFT

Number Designation Model 166 Model 292
BA41.10-P-1004-01F Self-locking Bolt, drive shaft to front axle gear Stage 1 Nm 40 40
Stage 2 ∠ ° 90 90
EXHAUST SYSTEM

Number Designation Engine 276 in model 166 Engine 276 in model 292
BA49.10-P-1020-01AK Bolt, exhaust system bracket to transmission Stage 1 Nm 8 8
Stage 2 ∠ ° 90 90
Fig 1: Identifying Retainer Wrench (164 589 02 07 00)
G07212216Courtesy of MERCEDES-BENZ USA
Fig 2: Identifying Socket Wrench Bit (001 589 65 09 00)
G07492046Courtesy of MERCEDES-BENZ USA
Fig 3: Identifying Long Wedge (115 589 03 59 00)
G07070400Courtesy 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