Remove/Install Transmission With Start-Up Clutch - AR27.10-P-0505MNI
Transmission 725.0 in model 290 with engine 177
with code M005 (Vehicles with 4MATIC/all-wheel drive)
Transmission 725.163 in model 290 with engine 177.8
MODIFICATION NOTES
| 08.12.2022 | Tightening torque newly added. | Operation step 56 | |
| 07.11.2023 | Screw/nut, transmission to engine | BA27.10-P-1001-04H |
Shown on transmission 725.0
Shown on transmission 725.163
Shown on transmission 725.0
Shown on transmission 725.0
Shown on transmission 725.163
| 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 | |
| Risk of death when working on component parts and systems with U >= 30 V alternating voltage | Do not touch damaged or defective live component parts and lines or non-insulated | AS00.00-Z-0035-01A | |
| (AC) or U >= 60 V direct voltage (DC) | electrical connections and lines. Transmission 725.163 in model 290 with engine 177.8 |
||
| Risk of injury to skin and eyes suffering scalding from contact with hot coolantspray. Risk of poisoning from swallowing coolant. | Do not open cooling system unless coolant temperature is below 90°C. Open cap slowly and release the overpressure. Do not pour coolant into beverage containers. Wear protective gloves, protective clothing and safety glasses. |
AS20.00-Z-0001-01A | |
| 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 | |
| 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 | |
| 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 | |
| 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 | General information on vehicles with high-voltage on-board electrical system and/or lithium-ion battery and/or gaseous-fuel drive system as well as personal protective equipment | Transmission 725.163 in model 290 with engine 177.8 | AH00.00-Z-0300-01A |
| Notice | Notes on battery | Transmission 725.163 in model 290 with engine 177.8 | AH54.10-P-0001-01A |
| Notice | Information on preventing damage to electronic components due to electrostatic discharge | AH54.00-P-0001-01A | |
| Notice | Notes on self-locking nuts and bolts | AH00.00-P-0001-01KOA | |
| Notice | Notes on avoiding damage through contamination and foreign objects | AH00.00-P-5000-01A | |
| Notes on automatic transmission | AH27.19-P-0001-01NKB | ||
| Remove | |||
| 1 | Shift the transmission (1) into neutral position. | ||
| 2 | Release parking brake. | ||
| 3 | Remove voltage of high-voltage on-board electrical system. | Transmission 725.163 in model 290 with engine 177.8 | AR47.70-P-1000FRH |
| 4 | Secure vehicle to prevent it moving away. | ||
| 5 | Disconnect ground line from battery. | AR54.10-P-0003FR | |
| 6 | Secure vehicle on vehicle lift. | AR00.60-P-1006A | |
| 7 | Drain coolant from low-temperature circuit. | AR09.41-P-6834MNI | |
| 8 | Loosen catalytic converters. | Left catalytic converter | AR49.20-P-0101MNI |
| Right catalytic converter | AR49.20-P-0102MNI | ||
| 9 | Remove starter wiring harness and electric lines of lambda sensors from left holder for starter wiring harness (10) at top. | Transmission 725.0 in model 290 with engine 177 with code M005 (Vehicles with 4MATIC/all-wheel drive) | |
| 10 | Remove upper screw of left holder for starter wiring harness (10). | Transmission 725.0 in model 290 with engine 177 with code M005 (Vehicles with 4MATIC/all-wheel drive) | |
| 11 | Remove lower screw of left holder for starter wiring harness (10) and remove left holder for starter wiring harness (10). | Transmission 725.0 in model 290 with engine 177 with code M005 (Vehicles with 4MATIC/all-wheel drive) | |
| 12 | Remove right holder for starter wiring harness (10) from transmission (1). | Transmission 725.0 in model 290 with engine 177 with code M005 (Vehicles with 4MATIC/all-wheel drive) | |
| 13 | Remove holders of lower rear engine compartment lining. | ||
| 14 | Remove rear propeller shaft. | AR41.10-P-0050MNI | |
| 15 | Remove right coolant hose (3) from oil cooler (4). | AR20.20-P-7441-01RQ | |
| Fig 2 | |||
| 16 | Remove coolant hoses (3) from coolant lines | Fig 2 | |
| 17 | Release oil lines at transmission end. | AR27.55-P-0600MNI | |
| 18 | Remove oil cooler (4) with connected oil lines. | AR27.55-P-1000MNI | |
| 19 | Remove holders (5, 6). | ||
| 20 | Disconnect ground line of transmission (1) from underbody. | ||
| 21 | Remove heat shield. | AR27.40-P-0700-01LF | |
| 22 | Release and disconnect electrical connector of fully integrated transmission control controller unit (Y3/8) from transmission (1). | ||
| 23 | Remove transmission wiring harness holder from oil pan. | ||
| 24 | Unclip wiring harness to transfer case at rear engine carrier. | Fig 4 | |
| 25 | Release and disconnect electrical connector from all-wheel drive control unit (N45). | AR28.19-P-1003MNI | |
| 26 | Release and disconnect electrical connector from transmission oil temperature sensor. | AR28.19-P-1007MNI | |
| 27 | Support transmission (1) with major-assembly support and mounting plate and strap down securely. | ||
| 000 588 24 62 00 Major assembly mount | WS01.00-P-0253B | ||
| 000 588 23 62 00 Mounting plate | WS26.00-P-0415B | ||
| 28 | Remove front axle differential propeller shaft (14) from front axle differential. | AR41.10-P-0070MNI | |
| 29 | Remove screws (9). | ||
| 30 | Screw guide pins into threaded holes of screws (9). | Fig 3 | |
| 31 | Lower the transmission (1) until all screws (8) are accessible. | ||
| 32 | Support front of engine between front axle carrier and engine using wooden wedge. | Support engine. Otherwise, when dismantling the transmission (1), the wet clutch will be damaged. |
|
| 33 | Remove cover from opening (arrow). | ||
| 34 | Carefully pry off wet clutch through opening (arrow) from two-mass flywheel. | Fig 1 | |
| 35.1 | Remove starter (M1) from transmission (1), place to one side with connected lines, and fasten. | Transmission 725.0 in model 290 with engine 177 with code M005 (Vehicles with 4MATIC/all-wheel drive) Do not crush or kink electric lines. Malfunctions will otherwise occur. Secure starter (M1) against falling down. Damage will otherwise occur. |
AR15.30-P-7100MNI |
| 35.2 | Counterhold nuts (13) and remove screws (11). | Transmission 725.163 in model 290 with engine 177.8 | |
| 36 | Remove caps (12). | Transmission 725.163 in model 290 with engine 177.8 | |
| 37 | Remove bolts (8). | ||
| 38 | Secure front axle differential propeller shaft (14) at transmission (1) against falling down. | ||
| 39 | Carefully pull transmission (1) with wet clutch over the guide pins rearwards and lower downwards. | Secure wet clutch against falling down. Damage will otherwise occur. |
|
If the wet clutch was pulled out of the transmission (1), ↓ replace sealing rings and sinuous springs. Transmission 725.0 in model 290 with engine 177 with code M005 (Vehicles with 4MATIC/all-wheel drive) |
AR27.51-P-0300MNE | ||
| Transmission 725.163 in model 290 with engine 177.8 | AR27.51-P-0300SCA | ||
| 40 | Remove wet clutch. | When replacing the transmission (1). Transmission 725.163 in model 290 with engine 177.8 |
AR27.51-P-0300SCA |
| Transmission 725.0 in model 290 with engine 177 with code M005 (Vehicles with 4MATIC/all-wheel drive) | AR27.51-P-0300MNE | ||
| Install | |||
| 41 | Insert wet clutch. | After removing the wet clutch. Transmission 725.163 in model 290 with engine 177.8 |
AR27.51-P-0300SCA |
| Transmission 725.0 in model 290 with engine 177 with code M005 (Vehicles with 4MATIC/all-wheel drive) | AR27.51-P-0300MNE | ||
| 42 | Release wet clutch locking clip and carefully position transmission (1) with wet clutch over guide pins on the engine. | ||
| 43 | Unfasten locking clip of front axle differential propeller shaft (14). | ||
| 44 | Screw in screws (8). | *BA27.10-P-1001-04H | |
| 45 | Install caps (12). | ||
| 46.1 | Release mounting of the starter (M1) and mount starter (M1) onto the transmission (1). | Transmission 725.0 in model 290 with engine 177 with code M005 (Vehicles with 4MATIC/all-wheel drive) | AR15.30-P-7100MNI |
| 46.2 | Counterhold nuts (13) and screw in screws (11). | Transmission 725.163 in model 290 with engine 177.8 |
*BA27.10-P-1001-04H |
| 47 | Install cover for opening (arrow). | ||
| 48 | Remove wooden wedge at front between front axle carrier and engine. | ||
| 49 | Remove guide pins from threaded holes of screws (9). | Fig 3 | |
| 50 | Screw in screws (9). | *BA27.10-P-1001-04H | |
| 51 | Attach front axle differential propeller shaft (14) to front axle differential. | AR41.10-P-0070MNI | |
| 52 | Release tie-down straps of transmission (1) and remove major assembly mount and mounting plate. | ||
| 000 588 24 62 00 Major assembly mount | WS01.00-P-0253B | ||
| 000 588 23 62 00 Mounting plate | WS26.00-P-0415B | ||
| 53 | Connect and lock electrical connector of transmission oil temperature sensor. | Transmission 725.09 in model 290 with engine 177 with code M005 (Vehicles with 4MATIC/all-wheel drive) |
AR28.19-P-1007MNI |
| 54 | Connect electrical connector of the control unit for all-wheel drive (N45) and lock. | Transmission 725.09 in model 290 with engine 177 with code M005 (Vehicles with 4MATIC/all-wheel drive) |
AR28.19-P-1003MNI |
| 55 | Clip wiring harness to transfer case at rear engine carrier. | ||
| 56 | Attach transmission wiring harness holder to oil pan. | *BA27.10-P-1035-04H | |
| 57 | Connect and lock electrical connector of fully integrated transmission control electric controller unit (Y3/8) on transmission (1). | ||
| 58 | Install heat shield. | AR27.40-P-0700-01LF | |
| *BA27.10-P-1009-04H | |||
| 59 | Connect ground line of transmission (1) to underbody. | *BA00.19-P-1039-02D | |
| 60 | Install holders (5, 6). | *BA49.10-P-1009-02E | |
| 61 | Install oil cooler (4) with connected oil lines. | AR27.55-P-1000MNI | |
| 62 | Lock oil lines at transmission end. | AR27.55-P-0600MNI | |
| 63 | Attach coolant hoses (3) to coolant lines (2). | ||
| 64 | Attach right coolant hose (3) at oil cooler (4). | AR20.20-P-7441-01RQ | |
| 65 | Install rear propeller shaft. | AR41.10-P-0050MNI | |
| 66 | Install holders of lower rear engine compartment lining. | ||
| 67 | Attach right holder for starter wiring harness (10) to transmission (1). | Transmission 725.0 in model 290 with engine 177 with code M005 (Vehicles with 4MATIC/all-wheel drive) |
*BA27.10-P-1029-04H |
| 68 | Position left holder for starter wiring harness (10) at transmission (1) and screw in lower screw of left holder for starter wiring harness (10). | Transmission 725.0 in model 290 with engine 177 with code M005 (Vehicles with 4MATIC/all-wheel drive) |
*BA27.10-P-1029-04H |
| 69 | Screw in upper screw of left holder for starter wiring harness (10). | Transmission 725.0 in model 290 with engine 177 with code M005 (Vehicles with 4MATIC/all-wheel drive) |
*BA27.10-P-1029-04H |
| 70 | Mount starter wiring harness and electric lines of lambda sensors at left holder for starter wiring harness (10). | Transmission 725.0 in model 290 with engine 177 with code M005 (Vehicles with 4MATIC/all-wheel drive) | |
| 71 | Fasten catalytic converters. | Left catalytic converter | AR49.20-P-0101MNI |
| Right catalytic converter | AR49.20-P-0102MNI | ||
| 72 | Connect ground line to battery. | AR54.10-P-0003FR | |
| 73 | Add low-temperature circuit coolant. | AR09.41-P-6834MNI | |
| 74 | Put the high-voltage on-board electrical system into operation. | Transmission 725.163 in model 290 with engine 177.8 | AR47.70-P-1000FRH |
| 75 | Check and correct transmission oil level. | AR27.00-P-0270EWN | |
| 76 | Read out and delete fault memory. | ||
| AD00.00-P-2000-06FR | |||
| 77 | Perform transmission adaptation with vehicle diagnosis system. | When replacing or repairing the transmission (1). | |
| AD00.00-P-2000-06FR | |||
| 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 | |
| 78 | Perform engine test run and check transmission (1) for proper operation and leak tightness. | ||
| 79 | Install lower engine compartment paneling. | AR61.20-P-1105FRX | |
| 80 | Disconnect vehicle from vehicle lift. | AR00.60-P-1006A |
GROUND POINTS
| Number | Designation | Model 290 | ||
|---|---|---|---|---|
| BA00.19-P-1039-02D | Bolt/nut, ground line to transmission/underfloor | M8 | Nm | 20 |
AUTOMATIC TRANSMISSION COMPLETE
| Number | Designation | Transmission 725.0 | Transmission 725.1 | |
|---|---|---|---|---|
| BA27.10-P-1001-04H | Screw/nut, transmission to engine | Nm | 42 | 42 |
AUTOMATIC TRANSMISSION COMPLETE
| Number | Designation | Transmission 725.0 | Transmission 725.1 | |
|---|---|---|---|---|
| BA27.10-P-1009-04H | Bolt, heat shield to oil pan | Nm | 9 | 9 |
AUTOMATIC TRANSMISSION COMPLETE
| Number | Designation | Transmission 725.0 | |
|---|---|---|---|
| BA27.10-P-1029-04H | Screw, cable duct to transmission bell housing | Nm | 12 |
AUTOMATIC TRANSMISSION COMPLETE
| Number | Designation | Transmission 725.0 | Transmission 725.1 | |
|---|---|---|---|---|
| BA27.10-P-1035-04H | Screw, electrical wiring harness holder to oil pan | Nm | 8 | 8 |
EXHAUST SYSTEM
| Number | Designation | Engine 177 in model 290 | |
|---|---|---|---|
| BA49.10-P-1009-02E | Bolt, exhaust system bracket to transmission | Nm | 20 |