Remove/Install Engine With Front Axle Carrier - AR01.10-P-2500MNG
Engine 177 in model 253 with code M005 (Vehicles with 4MATIC/all-wheel drive)
Shown in front right wheel arch
Shown in front left wheel arch
Shown in front right wheel arch
Shown on right wheel arch
| Risk of fire due to ignition of R1234yf refrigerant on hot components.Risk of poisoning caused by inhaling overheated refrigerant vapors. Risk of injury to skin and eyes caused by contact with escaped R1234yf refrigerant and when working on pressurized parts. Risk of explosion due to formation of ignitable refrigerant/air mixtures | Never perform welding work on or near a closed air conditioning system. No smoking or open flames. Wear safety glasses and protective gloves. Work only in well ventilated rooms. Carry out repair work on the air conditioning system circuit only after the system has been evacuated. | AS83.00-Z-0007-01A | |
| Risk of explosion caused by fuel igniting, risk of poisoning caused by inhaling and swallowing fuel as well as risk of injury to eyes and skin caused by contact with fuel. | No fires, sparks, open flames or smoking. Pour fuels into suitable and appropriately marked containers only. Wear protective clothing when handling fuel. |
AS47.00-Z-0001-01A | |
| 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 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 pressure. Do not pour coolant into beverage containers. Wear protective gloves, protective clothing and safety glasses. | AS20.00-Z-0001-01A | |
| 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 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 | |
| Risk of injury to skin and eyes due to handling of engine oil. Risk of poisoning caused by swallowing engine oil | Wear protective gloves, protective clothing and safety glasses. Do not fill engine oil into beverage containers. |
AS18.00-Z-0001-01A | |
| Protect air conditioning circuit and components from moisture when carrying out repair work | AH83.30-N-0005-01A | ||
| Notes on avoiding damage through contamination and foreign objects | AH00.00-P-5000-01A | ||
| Notes on self-locking nuts and bolts | AH00.00-N-0001-01A | ||
| Notes on handling refrigerant R1234yf | AH83.30-P-0003-02A | ||
| Notes on AIRMATIC | Engine 177 in model 253 with code 489 (AIR BODY CONTROL) with code M005 (Vehicles with 4MATIC/all-wheel drive) | AH32.22-P-1000-02LW | |
| General information on work on gasoline direct injection system | AH07.00-P-2000-01A | ||
| Use of engine no. when installing reconditioned engines and factory-new replacement engines or crankcases | AH01.10-P-0001-01A | ||
| Notes on repair work on suspension components | AH00.00-P-0100-01A | ||
| Remove/install | |||
| 1 | Deactivate easy entry/exit feature | ||
| 2 | Shift transmission to neutral and release parking brake | ||
| 3 | Secure vehicle on vehicle lift | AR00.60-P-0100CW | |
| 4 | Relieve pressure in front suspension struts using vehicle diagnosis system | ||
| AD00.00-P-2000-04B | |||
| 5 | Place front wheels in straight-ahead position | ||
| 6 | Disconnect battery ground line | AR54.10-P-0003LW | |
| 7 | Detach front complete wheels | AR40.10-P-1102A | |
| 8 | Remove screws of front axle shafts at wheel hubs | Where engine is subsequently removed from front axle carrier. |
AR33.30-P-0620LW |
| 9 | Fix steering wheel in position using the holding device | Fig 4 | |
| 10 | Disconnect steering coupling | Engine 177 in model 253 with code M005 (Vehicles with 4MATIC/all-wheel drive) except code 700 (Technology Local Content China) Do not turn steering wheel with steering coupling removed. Otherwise, clock spring contact is destroyed. |
AR46.10-P-8000-01LW |
| Fig 1 | |||
| 11 | Remove left-hand air filter housing | AR09.10-P-1151MNG | |
| 12 | Remove right air filter housing | AR09.10-P-1152MNG | |
| 13 | Drain air conditioning system | AR83.30-P-1760LW | |
| 14 | Disconnect refrigerant lines (3) at separating point and seal openings with suitable stop plugs and protective covers | *BA83.30-P-1004-01Q | |
| Fig 5 | |||
| Fig 3 | |||
| 15 | Secure refrigerant lines (3) to engine | ||
| 16 | Remove purge lines (1) and seal with suitable stop plugs | Fig 5 | |
| 17 | Relieve fuel pressure over diagnostic socket | AR07.03-P-1460-01MNG | |
| *BA07.03-P-1005-01H | |||
| Fig 7 | |||
| 18 | Remove fuel line (6) and seal openings with suitable stop plugs | *BA07.03-P-1006-01H | |
| Fig 5 | |||
| 19 | Remove vacuum line (9) at firewall and seal with suitable stop plugs | Fig 7 | |
| 20 | Disconnect inerting line (8) at firewall and place to one side | ||
| 21 | Disconnect engine wiring harness for removal of engine | AR15.18-P-1000-05MNG | |
| 22 | Release and disconnect electrical connector (12) of fan unit and remove electric line | AR20.40-P-5050MNG | |
| 23 | Remove brackets (11) of radiator package at upper crossmember | ||
| 24 | Remove all lower engine compartment linings | AR61.20-P-1105LW | |
| 25 | Remove front bumper | AR88.20-P-2000LW | |
| 26 | Remove covers over diagonal struts (86) | AR88.10-P-1300LW | |
| 27 | Remove left and right longitudinal member panel (101) in area of (arrows) | AR88.80-P-6000LWG | |
| 28 | Remove diagonal struts (86) | *BA61.10-P-1006-01L | |
| 29 | Remove center exhaust systems (100) | AR49.10-P-7283MNG | |
| 30 | Detach propeller shaft at transmission end | AR41.10-P-0050LWX | |
| 31 | Drain engine oil | ||
| AP18.00-P-0101D | |||
| 32 | Insert and tighten new drain screw | *BA01.45-P-1007-01Y | |
| 33 | Drain coolant at radiator | AR20.00-P-1142MNG | |
| 34 | Drain coolant from low-temperature circuit | AR09.41-P-6834MNG | |
| 35 | Remove coolant vent line (4) from expansion reservoir and place to one side | AR20.20-P-7441-01RQ | |
| 36 | Remove coolant line (5) from expansion reservoir and place to one side and seal openings with protective covers | AR20.20-P-7441-01RQ | |
| Fig 3 | |||
| 37 | Remove coolant hose (2) from low-temperature circuit switchover valve (Y73/1) and seal openings with protective covers | AR20.20-P-7441-01RQ | |
| Fig 3 | |||
| 38 | Release and disconnect electrical connector at refrigerant pressure sensor (B12) | ||
| 39 | Remove coolant hose (70) from radiator for low-temperature water circuit and seal openings with protective covers | AR20.20-P-7441-01RQ | |
| Fig 3 | |||
| 40 | Remove coolant hose (71) from low-temperature circuit circulation pump 3 (M43/8) and seal openings with protective covers | AR20.20-P-7441-01RQ | |
| Fig 3 | |||
| 41 | Remove coolant hose (72) from transmission coolant line and seal openings with protective covers | Fig 3 | |
| Fig 2 | |||
| 42 | Remove coolant hose (74) from thermostat housing and seal openings with protective covers | AR20.20-P-7441-01RQ | |
| Fig 6 | |||
| 43 | Remove coolant feed hose (7) at partition and seal openings with protective covers | AR20.20-P-7441-01RQ | |
| Fig 3 | |||
| 44 | Secure radiator package to engine | ||
| 45 | Release and disconnect electrical connector from low temperature circuit circulation pump 3 (M43/8) | AR09.41-P-6932MNG | |
| 46 | Remove screws of oil lines (60) | *BA18.30-P-1006-01N | |
| 47 | Remove oil lines (60) at oil cooler (62) and sea openings with protective covers | Fig 3 | |
| 48 | Remove screws (61) of oil cooler (62) bracket | *BA18.30-P-1005-01N | |
| 49 | Release and disconnect electrical connector (73) from low-temperature circuit circulation pump 1 (M43/6) | ||
| 50 | Release and disconnect electrical connectors (20, 21) of electric power steering | AR46.20-P-0600LW | |
| 51 | Remove subharness (22) of electric power steering at front axle carrier | AR46.20-P-0600LW | |
| 52 | Place subharness (22) of electric power steering to one side and fix in place in wheel arch | ||
| 53 | Remove RPM sensors at steering knuckles | AR42.30-P-0712LW | |
| 54 | Release and disconnect electrical connectors of left and right suspension strut | Engine 177 in model 253 with code 489 (AIR BODY CONTROL) with code M005 (Vehicles with 4MATIC/all-wheel drive) | AR32.25-P-1017LWL |
| 55 | Unclip electric lines at left and right steering knuckle | ||
| 56 | Unclip brackets of electric lines at left and right spring links | AR33.15-P-0170LW | |
| 57 | Unclip electric lines at left and right suspension strut | ||
| 58 | Remove left and right front brake caliper from steering knuckles and secure with connected brake lines in wheel arch | Engine 177 in model 253 with code B07 (Ceramic brake system) with code M005 (Vehicles with 4MATIC/all-wheel drive) except code B06 (AMG high-performance braking system) except code U70 (AMG high-performance composite braking system) |
AR42.10-P-0070LWC |
| Engine 177 in model 253 with code M005 (Vehicles with 4MATIC/all-wheel drive) with code U70 (AMG high-performance composite braking system) except code B06 (AMG high-performance braking system) except code B07 (Ceramic brake system) |
AR42.10-P-0070LWD | ||
| Engine 177 in model 253 with code B06 (AMG high-performance braking system) with code M005 (Vehicles with 4MATIC/all-wheel drive) except code B07 (Ceramic brake system) except code U70 (AMG high-performance composite braking system) |
AR42.10-P-0070LWB | ||
| 59 | Release and disconnect electrical connector (51) at left and right side of vehicle | Engine 177 in model 253 with code 466 (Active engine mount) with code M005 (Vehicles with 4MATIC/all-wheel drive) | |
| 60 | Unclip left and right bracket (52) and remove left and right electrical connector (51) and place to one side | ||
| 61 | Unclip left and right bracket (53) at front axle carrier | ||
| 62 | Fix in place left and right subharness (54) of left and right front-axle half with brackets (53) to upper transverse control arm | ||
| 63 | Remove left and right suspension strut at spring links | Engine 177 in model 253 with code 489 (AIR BODY CONTROL) with code M005 (Vehicles with 4MATIC/all-wheel drive) | AR32.25-P-1017LWL |
| 64 | Remove upper transverse control arm at left and right steering knuckle and secure steering knuckles against tilting | AR33.20-P-0500LW | |
| 65 | Remove screw (63) and remove brackets (64) | *BA62.30-P-1006-01H | |
| 66 | Support front axle carrier with lifting platform and major assembly mount and secure engine-transmission unit to prevent slipping and falling down with a tensioning strap 000 588 03 62 00 Lifting platform | ||
| WS01.00-P-0091A | |||
| 67 | Remove screws of rear engine crossmember | Never use impact wrench/driver or compressed air tools for screwing in or unscrewing the screw/bolts. Threads will otherwise be damaged. |
AR22.10-P-4360MNG |
| 68 | Remove screws (80, 81) | ||
| Notes on threaded connections fastened using a tightening angle-based tightening process | AH00.00-P-0020-01A | ||
Under no circumstances use impact wrenches or pneumatic tools to remove/screw in screws (82). Threads will otherwise be damaged. |
|||
| *BA33.10-P-1001-01Q | |||
| 69 | Remove nuts (83) and remove struts (82) | In no case, use impact wrenches or pneumatic tools to remove/screw on nuts (83). Threads will otherwise be damaged. |
|
| *BA33.10-P-1002-01Q | |||
| 70 | Lower radiator package, engine with transmission and front axle carrier | ||
| 000 588 03 62 00 Lifting platform | WS01.00-P-0091A | ||
The engine and transmission must not impact on the body panels or major assemblies, lines and hoses must not be pinched or put under tension. Damage will occur otherwise. |
|||
| 71 | Install in the reverse order | ||
| 72 | Check engine oil level; correct if necessary | ||
| AP18.00-P-1812CKI | |||
| 73 | Perform wheel alignment check | AR40.20-P-0200LW | |
| 74 | Read out and erase fault memory | ||
| AD00.00-P-2000-04B | |||
| 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 | |
| 75 | Carry out an engine test run, checking the engine for proper operation and leaktightness | ||
| 76 | Install all lower engine compartment linings | AR61.20-P-1105LW |
OIL PAN
| Number | Designation | Engine 177 | ||
|---|---|---|---|---|
| BA01.45-P-1007-01Y | Plastic drain screw to oil pan bottom section | Maximum | Nm | 4 |
INJECTION NOZZLES, INJECTION VALVES, LINES
| Number | Designation | Engine 177 | |
|---|---|---|---|
| BA07.03-P-1005-01H | Dust protection cap to service connection | Nm | 1 |
INJECTION NOZZLES, INJECTION VALVES, LINES
| Number | Designation | Engine 177 | |
|---|---|---|---|
| BA07.03-P-1006-01H | Union nut, fuel hose to diagnostic socket/fuel line | Nm | 24 |
OIL COOLING
| Number | Designation | Engine 177 except in model 463 | |
|---|---|---|---|
| BA18.30-P-1005-01N | Screw/bolt, front-end/wheel arch oil cooler to bracket | Nm | 8 |
OIL COOLING
| Number | Designation | Engine 177 except in model 463 | |
|---|---|---|---|
| BA18.30-P-1006-01N | Screw/bolt, oil line to front-end/wheel arch oil cooler | Nm | 8 |
FRONT AXLE CARRIER
| Number | Designation | Model 253 | |
|---|---|---|---|
| BA33.10-P-1001-01Q | Bolt, front axle carrier to longitudinal member | Nm | 180 |
FRONT AXLE CARRIER
| Number | Designation | Model 253 | |
|---|---|---|---|
| BA33.10-P-1002-01Q | Mount, support (strut) | Nm | 110 |
FRAME FLOOR ASSEMBLY
| Number | Designation | Model 253 | |
|---|---|---|---|
| BA61.10-P-1006-01L | Bolt, front diagonal strut to front axle carrier/torsion bar bearing shell/radiator mounting console | Nm | 50 |
CROSS MEMBER AND FRONT REINFORCEMENT
| Number | Designation | Model 253 | ||
|---|---|---|---|---|
| BA62.30-P-1006-01H | Bolt, soundproofing to front axle carrier | M8 | Nm | 23 |
AIR CONDITIONING
| Number | Designation | Model 253 | |
|---|---|---|---|
| BA83.30-P-1004-01Q | Nut, refrigerant line to connecting point | Nm | 12 |