Remove/Install Engine With Front Axle Carrier - AR01.10-P-2500SVZ
Engine 279 in model 223
Shown with code 2U8 (Alternative refrigerant)
Shown on removed brake disk
Shown when removed
Shown on removed radiator package
| 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 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 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 poisoning caused by inhaling overheated refrigerant vapors from an air conditioning system containing R134a. Risk of injury to skin and eyes caused by contact with liquid R134a refrigerant and when working on pressurized parts | 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-0006-01A | |
| 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 . 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 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 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 danger zone. | AS49.00-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 | Protect air conditioning circuit and components from moisture when carrying out repair work | AH83.30-P-0005-01KOA | |
| Notice | Notes on coolant | AH20.00-P-2080-01KOA | |
| Notice | Notes on self-locking nuts and bolts | AH00.00-P-0001-01KOA | |
| Notice | Notes on bolted connections with self tapping screws | AH00.00-P-0007-01SF | |
| Notice | Notes on avoiding damage through contamination and foreign objects | AH00.00-P-5000-01A | |
| Notice | Information on influencing load ratios when removing major assemblies | AH00.60-P-0001-01A | |
| Notice | Notes on air suspension | AH32.22-P-1000-01T | |
| Notice | Information on preventing damage to electronic components due to electrostatic discharge | AH54.00-P-0001-01A | |
| Notice | Notes on battery | AH54.10-P-0001-01A | |
| Notes on handling refrigerant R134a | AH83.30-P-0003-01KOA | ||
| Notes on safety-relevant components | AH00.00-Z-0019-01A | ||
| Notes on repair work on suspension components | AH00.00-P-0100-01A | ||
| Use of engine no. when installing reconditioned engines and factory-new replacement engines or crankcases | AH01.10-P-0001-01A | ||
| Notes on handling refrigerant R1234yf | AH83.30-P-0003-02A | ||
| Remove/install | |||
| 1 | Secure vehicle to prevent it moving away. | ||
| 2 | Move transmission to neutral position and release the parking brake. | ||
| 3 | Secure vehicle on vehicle lift. | AR00.60-P-1006A | |
| 4 | Deactivate easy entry and exit feature for steering wheel in instrument cluster. | ||
| 5 | Move front wheels to straight-ahead position and fix steering wheel in place with holding device. | The clock spring contact will otherwise be destroyed. |
Fig 2 |
| 6 | Remove upper engine cover. | AR01.10-P-2405SVZ | |
| 7 | Remove cover in engine compartment at driver's side and front passenger side. | ||
| 8 | Disconnect ground line from 12 V on-board electrical system battery. | AR54.10-P-0051S | |
| 9 | Discharge air conditioning system. | AR83.30-P-1760S | |
| 10 | Drain off low-temperature circuit coolant. | AR09.41-P-6834SVZ | |
| 11 | Drain engine cooling system coolant. | AR20.00-P-1142SVZ | |
| 12 | Remove purge line (2) at separating point. | ||
| 13 |
Remove dust filter with air duct segment. | AP83.00-P-8381I | |
| 14 | Release and disconnect electrical connectors (3) of engine wiring harness (4). | ||
| 15 | Unscrew bolts (5), unclip engine wiring harness (4) and set down on engine (1). | ||
| 16 | Release pipeline (6) and disconnect at separating point (arrow A). | Engine 279 in model 223 with code 2U8 (Alternative refrigerant) |
|
| 17 | Open cover (7) and remove nut (8) of positive line. | *BA15.40-P-1007-01R | |
| 18 | Remove left air filter housing. | AR09.10-P-1151SVZ | |
| 19 | Remove right air filter housing. | AR09.10-P-1152SVZ | |
| 20 | Remove union nut (9), pull fuel hose off of fuel line (10) and place this to one side. | *BA07.03-P-1004-01G | |
| Fig 7 | |||
| 21 | Remove bleed line (11) at coolant pipe (12). | ||
| 22 | Remove coolant line (13) at separating point and seal openings using suitable protective covers. | AR20.20-P-7441-01RQ | |
| Fig 5 | |||
| 23 | Remove coolant line (14) from coolant directional control valve and seal openings using suitable protective covers. | AR20.20-P-7441-01RQ | |
| Fig 5 | |||
| 24 | Unscrew screws (15), open clamp (16) and remove coolant pipe (12). | *BA20.10-P-1005-01H | |
| Fig 4 | |||
| Fig 3 | |||
| 25 | Open clamps (arrows B), remove coolant hoses (17, 18) from respective coolant line and seal openings using suitable protective covers. | Fig 5 | |
| Fig 4 | |||
| 26 | Secure radiator package against falling down using a tensioning strap. | ||
| 27 | Remove both front fender liners. | AR88.10-P-1301S | |
| 28 | Remove rear and center engine compartment lining. | AR61.20-P-1105S | |
| 29 | Remove front bumper. | AR88.20-P-2000S | |
| 30 | Disconnect steering coupling at lock of steering shaft. | AR46.10-P-8000-01LW | |
| Fig 1 | |||
| 31 | Open left and soundproofing in area of steering gear. | ||
| 32 | Release and disconnect electrical connectors from steering gear. | ||
| 33 | Unclip electrical wiring harness at steering gear and allow to hang to the side. | ||
| 34 | Release, disconnect electrical connector of right front brake wear sensor and remove from brake caliper. | *BA42.10-P-1004-10CA | |
| 35 | Remove front brake calipers and secure with connected lines to respective upper transverse control arm. | Engine 279 in model 223 except code B06 (Silver brake calipers) except code B07 (AMG - ceramic brake system) except code U70 (red-painted brake callipers) |
AR42.10-P-0070S |
| 36 | Release and disconnect electrical connectors (19). | ||
| 37 | Unscrew screws (20) and remove brackets (21). | Fig 8 | |
| 38 | Remove line brackets at respective spring link and allow to hang to the side. | ||
| 39 | Secure steering knuckles to front axle carrier using a tensioning strap. | Drive shafts can be damaged otherwise. |
|
| 40 | Install guard plates for protection of brake disk cover panels. | AR42.00-P-0100-01S | |
| Fig 6 | |||
| 41 | Remove suspension struts from respective spring link. | Engine 279 in model 223 except code 490 (Electrohydraulic suspension) |
AR32.25-P-1017S |
| 42 | Remove upper transverse control arm from steering knuckle. | AR33.20-P-0500S | |
| 43 | Unscrew screw (22), remove low-pressure line (23) at refrigerant compressor (A9/2) and seal exposed openings with suitable stop plugs. | *BA83.55-P-1002-01ZA | |
| Fig 3 | |||
| Fig 7 | |||
| 44 | Remove low-pressure line (23) at line adapter (24) and seal exposed openings with suitable stop plugs. | *BA83.30-P-1021-01P | |
| Fig 3 | |||
| Fig 7 | |||
| 45 | Remove nut (25), remove high-pressure line (26) at condenser and seal exposed openings with suitable stop plugs. | *BA83.30-P-1008-01P | |
| Fig 3 | |||
| Fig 7 | |||
| 46 | Remove nuts and allow electropneumatic controller unit with connected lines to hang to the side. | AR32.22-P-2027S | |
| 47 | Remove coolant hoses (27, 28) from automatic transmission oil cooler (29) and seal connections with protective covers. | AR20.20-P-7441-01RQ | |
| Fig 5 | |||
| 48 | Unscrew screw (30), pull out oil line (31) from engine oil cooler (32) and seal openings with suitable stop plugs. | *BA18.30-P-1007-01K | |
| Fig 7 | |||
| Fig 3 | |||
| 49 | Remove circulation pump for low-temperature circuit. | AR09.41-P-6926SVZ | |
| 50 | Unscrew screws (33) and fold out brackets (34). | ||
| 51 | Unscrew bolts (35). | *BA62.30-P-1009-01G | |
| 52 | Unscrew screws (36) and remove support (37). | *BA62.30-P-1011-01G | |
| 53 | Unscrew bolts (38) and remove struts (39). | *BA62.30-P-1006-01G | |
| 54 | Remove, expose coolant hoses (40) and seal openings with suitable stop plugs and/or protective covers. | AR20.20-P-7441-01RQ | |
| Fig 7 | |||
| Fig 5 | |||
| Fig 8 | |||
| 55 | Unscrew screw (41), remove oil line (42) and seal openings with suitable stop plugs. | *BA18.30-P-1001-01K | |
| Fig 7 | |||
| 56 | Unscrew bolts (43) and remove mounting support (44). | *BA33.10-P-1003-01P | |
| 57 | Remove front diagonal struts. | AR61.10-P-5141S | |
| 58 | Remove ground line (45) at automatic transmission. | *BA54.18-P-1001-02D | |
| 59.1 | Remove left side underfloor paneling. | Engine 279 in model 223 except code Z07 (B7 armoring on special protection version) |
AR61.30-P-1001S |
| 59.2 | Remove front left armor plate and center armor plate. | Engine 279 in model 223 with code Z07 (B7 armoring on special protection version) |
AR61.40-P-1001S |
| 60 | Remove nut (46) and expose ground line (47). | *BA00.19-P-1019-01N | |
| Fig 8 | |||
| 61 | Release and disconnect electrical connectors (48) at automatic transmission oil pan. | ||
| 62 | Remove flex disk at automatic transmission and secure propeller shaft against falling down. | AR41.10-P-0050SVZ | |
| 63 | Remove nuts (49) of struts (50). | *BA33.10-P-1005-01P | |
| 64 | Support front axle carrier (51) with lifting platform and secure entire engine transmission unit against slipping and falling down. | AR01.10-P-2500-01A | |
| 000 588 25 62 00 Lift table | WS01.00-P-0264A | ||
| 65 | Unscrew screws (52) and remove struts (50). | *BA33.10-P-1002-01P | |
| 66 | Remove screws (53). | *BA33.10-P-1001-01P | |
| 67 | Remove transmission mount (54). | AR22.10-P-0007SVZ | |
| 68 | Carefully lower engine transmission unit with front axle carrier (51). | AR01.10-P-2500-01A | |
| 000 588 25 62 00 Lift table | Otherwise, leaks, malfunctions or engine damage may occur. |
WS01.00-P-0264A | |
| 69 | Install in the reverse order. | ||
| Check | |||
| 70 |
Read out and delete fault memory using diagnostic system. | AD00.00-P-2000-06FR | |
| 71 |
Check and correct engine oil level using instrument cluster. | AP18.00-P-1812A | |
| 72 | Perform engine test run and check engine for proper operation and leak tightness. | ||
| 73 | Perform wheel alignment measurement. | AR40.20-P-0200S |
GROUND POINTS
| Number | Designation | Model 223 except code Z07 (B7 armoring on special protection version) | Model 223 with code Z07 (B7 armoring on special protection version) | ||
|---|---|---|---|---|---|
| BA00.19-P-1019-01N | Left underbody longitudinal member ground point | W52/22 | Nm | 16 | 16 |
INJECTION NOZZLES, INJECTION VALVES, FUEL LINES
| Number | Designation | Engine 279 | |
|---|---|---|---|
| BA07.03-P-1004-01G | Union nut, fuel hose to fuel line | Nm | 24 |
ALTERNATOR
| Number | Designation | Engine 279 | ||
|---|---|---|---|---|
| BA15.40-P-1007-01R | Nut, alternator electrical wiring harness separating point | M8 | Nm | 16 |
OIL COOLING
| Number | Designation | Engine 279 | |
|---|---|---|---|
| BA18.30-P-1001-01K | Bolt, oil line feed line to intermediate housing for oil lines | Nm | 9 |
OIL COOLING
| Number | Designation | Engine 279 | |
|---|---|---|---|
| BA18.30-P-1007-01K | Bolt, feed line/return line to engine oil cooler | Nm | 9 |
COOLANT PUMP, COOLANT THERMOSTAT
| Number | Designation | Engine 279 | |
|---|---|---|---|
| BA20.10-P-1005-01H | Screw/bolt, coolant pipe to coolant thermostat | Nm | 9 |
FRONT AXLE CARRIER
| Number | Designation | Model 223 except code Z07 (B7 armoring on special protection version) | Model 223 with code Z07 (B7 armoring on special protection version) | |||
|---|---|---|---|---|---|---|
| BA33.10-P-1001-01P | Screw/bolt, front axle carrier at front to longitudinal member | Stage 1 | Nm | 180 | 250 | |
| Stage 2 | Loosen | ∠° | - | - | ||
| Stage 3 | Nm | - | - | |||
| Stage 4 | ∠° | - | - | |||
FRONT AXLE CARRIER
| Number | Designation | Model 223 except code Z07 (B7 armoring on special protection version) | Model 223 with code Z07 (B7 armoring on special protection version) | |||
|---|---|---|---|---|---|---|
| BA33.10-P-1002-01P | Screw/bolt, front axle carrier at rear to longitudinal member | Stage 1 | Nm | 110 | 110 | |
| Stage 2 | Loosen | ∠° | - | - | ||
| Stage 3 | Nm | - | - | |||
FRONT AXLE CARRIER
| Number | Designation | Model 223 except code Z07 (B7 armoring on special protection version) | Model 223 with code Z07 (B7 armoring on special protection version) | ||
|---|---|---|---|---|---|
| BA33.10-P-1003-01P | Bolt/nut, front mounting console to front axle carrier | M8 | Nm | 23 | 23 |
| M10 | Nm | 50 | 50 | ||
FRONT AXLE CARRIER
| Number | Designation | Model 223 except code Z07 (B7 armoring on special protection version) | Model 223 with code Z07 (B7 armoring on special protection version) | |
|---|---|---|---|---|
| BA33.10-P-1005-01P | Bolt/nut, rear mounting support to longitudinal member | Nm | 50 | 50 |
FRONT AXLE BRAKE CALIPER
| Number | Designation | Model 223 (except 223.182) with code Z07 | Model 223 (except 223.182) except code Z07 | ||
|---|---|---|---|---|---|
| BA42.10-P-1004-10CA | Bolt, brake wear sensor to brake caliper | M6 | Nm | 8 | 8 |
WIRING HARNESS
| Number | Designation | Model 223 | ||
|---|---|---|---|---|
| BA54.18-P-1001-02D | Bolt, ground strap to transmission housing | M8 | Nm | 20 |
| M10 | Nm | - | ||
CROSS MEMBER AND FRONT REINFORCEMENT
| Number | Designation | Model 223 | |
|---|---|---|---|
| BA62.30-P-1006-01G | Screw, lower impact absorber to integral carrier | Nm | 50 |
CROSS MEMBER AND FRONT REINFORCEMENT
| Number | Designation | Model 223 | ||
|---|---|---|---|---|
| BA62.30-P-1009-01G | Screw, support to lower impact absorber | M8 | Nm | 23 |
CROSS MEMBER AND FRONT REINFORCEMENT
| Number | Designation | Model 223 | |
|---|---|---|---|
| BA62.30-P-1011-01G | Screw, front mount to absorber | Nm | 23 |
AIR CONDITIONING
| Number | Designation | Model 223 with code 2U8 (Alternative refrigerant) | Model 223 except code 2U8 (Alternative refrigerant) | ||
|---|---|---|---|---|---|
| BA83.30-P-1008-01P | Bolt/nut, refrigerant line to condenser/gas cooler | M6 | Nm | 12 | 12 |
AIR CONDITIONING
| Number | Designation | Model 223 with code 2U8 (Alternative refrigerant) | Model 223 except code 2U8 (Alternative refrigerant) | |
|---|---|---|---|---|
| BA83.30-P-1021-01P | Screw, refrigerant line to line adapter | Nm | 20 | 20 |
REFRIGERANT COMPRESSOR
| Number | Designation | Engine 279 | |
|---|---|---|---|
| BA83.55-P-1002-01ZA | Screw/bolt, refrigerant line to A/C compressor | Nm | 20 |