Remove/install engine with front axle carrier - AR01.10-P-2500MLJ
MODEL 166 with ENGINE 157
MODEL 166 with ENGINE 278
Fig 1: Identifying Engine With Front Axle Carrier Remove/Install Components - Shown On Model 166 (1 Of 4)
Fig 2: Identifying Engine With Front Axle Carrier Remove/Install Components - Shown On Model 166 (2 Of 4)
Fig 3: Identifying Engine With Front Axle Carrier Remove/Install Components - Shown On Model 166 (3 Of 4)
Fig 4: Identifying Engine With Front Axle Carrier Remove/Install Components - Shown On Model 166 (4 Of 4)
| Risk of injury caused by fingers being jammed or pinched when removing, installing or aligning hoods, doors, trunk lid/rear-end door or sliding roof. | No parts of the body or limbs should be within the operating area when the components are moving. | AS00.00-Z-0011-01A | |
| Notes on battery | AH54.10-P-0001-01A | ||
| Notes on self-locking nuts and bolts | AH00.00-N-0001-01A | ||
| Notes on active roll stabilization | AH32.34-P-0001-01A | ||
| Notes on repair work on suspension components | AH00.00-P-0100-01A | ||
| Notes on AIRmatic | AH32.22-P-1000-02GZ | ||
| Remove/install | |||
| 1 | Relieve all pressure in front suspension struts with diagnostic system | Vehicles with code 489 (AIRMATIC (air suspension with continuous adjustment damping)) | |
| 2 | Deactivate easy entry/exit function | Vehicles with code 275 (Memory package (driver's seat, steering column, mirrors)) | |
| 3 | Turn front wheels to straight-ahead position and secure steering wheel with holding device | The steering wheel must not be turned when detaching steering coupling. Otherwise the clock spring contact will be destroyed. |
|
| Fig 5 | |||
| 4 | Set DIRECT SELECT gear selector switch to position "N" and release parking brake | ||
| 5 | Detach ground line from battery | The ground line on battery must always be detached before beginning work on fuel system. Pressure will be built up in the fuel system otherwise upon opening a vehicle door or the liftgate. |
AR54.10-P-0003GZ |
| 6 | Secure vehicle on vehicle lift | AR00.60-P-0100GZ | |
| 7 | Remove front engine cover | ||
| 8 | Remove front section of the partition wall on the right and left otherwise | ||
| 9 | Remove corresponding underfloor paneling | AR61.30-P-1001GQ | |
| 10 | Drain coolant at radiator | AR20.00-P-1142GQ | |
| Notes on coolant | AH20.00-N-2080-01A | ||
| 11 | Blow out coolant for low-temperature water circuit | ||
| 12 | Remove air filter housing (1) on the right and left with engine air intake duct (2) upstream of the air filter | ||
| 13 | Remove fan unit | AR20.40-P-5050MLJ | |
| 14 | Disconnect engine wiring harness on the vehicle side | AR01.00-P-2410-02MLJ | |
| 15 | Remove air inlet box upper section (6) on the right | AR82.30-P-6400GZ | |
| 16 | Detach coolant line (45) from thermostat housing | ||
| 17 | Detach coolant line from heating cooler on partition wall | Fig 10 | |
| 18 | Disconnect bleed line (13) for charge air cooler at separating point | ||
| 19 | Detach coolant return line (15) on oil filter housing | ||
| 20 | Disconnect coolant line (14) from expansion reservoir | ||
| 21 | Disconnect coolant feed line (10) | ||
| 22 | Disconnect coolant hose (18) on additional radiator in wheel arch | ||
| 23 | Disconnect coolant line (11) on lower coolant line (12) | ||
| 24 | Disconnect lower coolant line (12) on cooler | AR09.41-P-1311-01AL | |
| 25 | Disconnect additional oil cooler lines (19) | ENGINE 157 in MODEL 166 | |
| 26 | Disconnect alternator/starter wiring harness (7) on the vehicle side and lay on engine | AR01.00-P-2410-02MLJ | |
| 27 | Disconnect electric steering wiring harness (8) on the vehicle side and lay on engine | AR01.00-P-2410-02MLJ | |
| 28 | Unfasten purge line (5) and place to one side | ||
| 29 | Disconnect vacuum line (4) for brake booster | AR09.41-P-1311-01AL | |
| 30 | Remove ME-SFI [ME] control unit | AR07.08-P-7008MLJ | |
| 31 | Suction off hydraulic fluid from expansion reservoir for Active Roll Stabilization | ENGINE 157, 278 in MODEL 166 with CODE 468 (Active driving stability (stability)) |
|
| Fig 6 | |||
| 32 | Loosen oil line (17) from hydraulic pump intake manifold | ENGINE 157, 278 in MODEL 166 with CODE 468 (Active driving stability (stability)) |
|
| 33 | Loosen ground strap on A/C compressor AdBlue® | AR83.55-P-5300GQ | |
| 34 | Detach refrigerant lines on condenser and on engine compartment connecting point | AR83.55-P-5300GQ | |
| *BA83.30-P-1009-01J | |||
| 35 | Detach steering coupling (3) | AR46.10-P-8000GQ | |
| 36 | Detach bleed line from front axle transmission on heat shield | ||
| 37 | Detach front wheels | ||
| AP40.10-P-4050EW | |||
| 38 | Remove front sections for front fender liner (20) | AR88.10-P-1310GQ | |
| 39 | Remove underfloor panelings (36, 44) | AR61.30-P-1001GQ | |
| 40 | Disconnect high-pressure line (32) at connecting point and detach at frame floor assembly | ENGINE 157, 278 in MODEL 166 with CODE 468 (Active driving stability (stability)) |
|
| Fig 7 | |||
| Fig 9 | |||
| 41 | Disconnect low-pressure line (31) at connecting point | ENGINE 157, 278 in MODEL 166 with CODE 468 (Active driving stability (stability)) |
|
| Fig 9 | |||
| 42 | Detach return flow oil cooling line (23) and feed line oil cooling line (25) of the transmission at connecting point below the ALT | ENGINE 157, 278 in MODEL 166 with TRANSMISSION 722.9 |
AR27.55-P-0600GQ |
| Fig 9 | |||
| 43 | Disconnect air ducting for engine bearing cooling (16) on the right and left at cooler | ||
| 44 | Unclip brake lines on steering knuckles (29) | ||
| 45 | Disconnect electrical connection on brake pad contact sensor | ||
| 46 | Detach electrical line for brake pad contact sensor on brake caliper (28) and unclip on steering knuckle (29) | ||
| 47 | Detach brake caliper (28) on brake caliper supports | AR42.10-P-0070GZ | |
| 48 | Detach wheel speed sensors at steering knuckles (29), unclip from brackets and place to one side | AR42.30-P-0712GZ | |
| 49 | Detach upper transverse control arm on steering knuckles (29) | AR33.25-P-0400GZ | |
| 50 | Detach suspension struts at lower control arm (30) | AR32.25-P-1017GQ | |
| 51 | Remove shield (40) on transfer case (39) | ENGINE 157, 278 in MODEL 166 with TRANSMISSION 722.9 with CODE 430 (On & off-road package) |
|
| 52 | Disconnect electrical connections on absolute sensor, actuator motor and switchover valve at transfer case (39) | ENGINE 157, 278 in MODEL 166 with TRANSMISSION 722.9 with CODE 430 (On & off-road package) |
|
| 53 | Detach drive shaft (41) on transmission output flange for transfer case (39) | Tightening procedure for rear propeller shaft to transfer case |
AR41.10-P-0050-17GZ |
| 54 | Remove NOx storage catalytic converter (38) on the right and left | AR49.10-P-5500MLJ | |
| 55 | Remove screw/bolts for stiffening plate (33) on longitudinal members | ||
| *BA33.10-P-1002-01I | |||
| 56 | Remove stiffening plates (37, 43) | If installed. | |
| *BA33.10-P-1003-01I | |||
| 57 | Relieve fuel pressure through service valve | AR07.03-P-1460-01VA | |
| *BA07.03-P-1007-01E | |||
| Fig 8 | |||
| 58 | Disconnect fuel line at connecting point for low-pressure line | ||
| *BA07.03-P-1001-01E | |||
| Fig 9 | |||
| 59 | Support front axle carrier (26) with lifting platform and aggregate mount and secure whole engine transmission unit against slipping and falling down with a tensioning strap | Major assembly lifting platform/scissors trolley jack |
|
| 60 | Remove rear engine crossmember (35) with the rear engine mount | AR22.10-P-1180GQ | |
| Notes on bolted connections with self tapping screws | AH00.00-P-0007-01SF | ||
| 61 | Remove screw/bolts (27) from longitudinal members | AR33.10-P-0100GQ | |
| 62 | Lower engine transmission unit and front axle carrier (26) | ||
| 63 | Install in the reverse order | ||
| 64 | Check cooling system for leaktightness | AR20.00-P-1010GQ | |
| 65 | Fill and bleed ACTIVE CURVE SYSTEM | MODEL 166 with ENGINE 157, 278 with CODE 468 (ACTIVE CURVE SYSTEM) |
AR32.34-P-0021GQ |
| 66 | Check transmission oil level and correct if necessary | AR27.00-P-0270W | |
| 67 | Perform wheel alignment check | AR40.20-P-0200GQ | |
| 68 | Read out fault memory using the diagnostic system and clear if necessary | ||
| AD00.00-P-2000-04A | |||
| 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 | |
| 69 | Carry out an engine test run, checking the engine for proper operation and leaktightness | ||
| 70 | Check engine oil level | ||
| MODEL 166 with ENGINE 157 | AP18.00-P-0101EWG | ||
| MODEL 166 with ENGINE 278 | AP18.00-P-0101EL |
INJECTION NOZZLES, INJECTION VALVES, LINES
| Number | Designation | ENGINE 157 | ENGINE 278 | |
|---|---|---|---|---|
| BA07.03-P-1001-01E | Union nut, fuel line to fuel distributor | Nm | 22 | 22 |
INJECTION NOZZLES, INJECTION VALVES, LINES
| Number | Designation | ENGINE 157 | ENGINE 278 | ||
|---|---|---|---|---|---|
| BA07.03-P-1007-01E | Protective cap on service valve | Plastic | Nm | 2 | 2 |
| Metal | Nm | 15 | 15 | ||
FRONT AXLE CARRIER
| Number | Designation | MODEL 166 | ||
|---|---|---|---|---|
| BA33.10-P-1002-01I | Bolt, stiffening plate to longitudinal member | M10 | Nm | 60 |
FRONT AXLE CARRIER
| Number | Designation | MODEL 166 | ||
|---|---|---|---|---|
| BA33.10-P-1003-01I | Bolt, stiffening plate to body | M8 | Nm | 20 |
AIR CONDITIONING
| Number | Designation | MODEL 166 | |
|---|---|---|---|
| BA83.30-P-1009-01J | Nut, high-pressure line to condenser/engine compartment connecting point/expansion valve | Nm | 8 |