Remove/Install Cover Of Electric Machine - AR08.10-P-0004OLG
WARNING: This page is about a different car, the 2023 Mercedes-Benz GLC300, 2022 Mercedes-Benz GLC300, 2021 Mercedes-Benz GLC300, 2020 Mercedes-Benz GLC350e, and 2020 Mercedes-Benz GLC300. However, it is still accessible from the selected car via links, so may be relevant.
Model 205, 253 with transmission 725.0
with code ME05 (Hybrid drive 85 kW-94 kW variant (incl. plug-in))
Fig 1: Cover Of Electric Machine Components Location - Model 253 With Transmission 725.0 With Code ME05
| Risk of death when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC) | Do not touch damaged or defective live component parts and lines or non-insulated electrical connections and lines. | AS00.00-Z-0035-01A | |
| Risk of fire /risk of explosion due to short circuit and escaping oxyhydrogen gas. Risk of (burn) injury caused by caustic burns to eyes, skin and mucous membranes from battery electrolyte/mist, short circuit and arcing. Risk of poisoning caused by swallowing battery electrolyte or absorption of lead through the skin or body orifices. Risk of death due to voltage U >= 30 V AC and U >= 60 V DC. | No fires, sparks, open flames, or smoking. Wear acid-resistant gloves, clothing, and glasses. Pour battery acid only into suitable and appropriately marked containers. | AS54.10-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 | Information on preventing damage to electronic components due to electrostatic discharge | AH54.00-P-0001-01A | |
| 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 | AH00.00-Z-0300-01A | |
| Notice | Notes on technical cleanliness when working on high-voltage on-board electrical system | AH54.00-P-0004-01RFW | |
| Notice | Notes on electric machine | Model 205.013/053/213/253 with transmission 725.017 with code ME05 (Hybrid drive 85 kW-94 kW variant (incl. plug-in)) Model 253.311/353/911/953 with transmission 725.047 with code ME05 (Hybrid drive 85 kW-94 kW variant (incl. plug-in)) |
AH08.10-P-0001-01MRD |
| Notice | Notes on battery | AH54.10-P-0001-01A | |
| Remove | |||
| 1 | Remove transmission. | Model 205.013/213 with engine 654 with transmission 725.0 with code ME05 (Hybrid drive 85 kW-94 kW variant (incl. plug-in)) |
AR27.10-P-0005OLI |
| Model 253.311/911 with engine 654.9 with transmission 725.047 with code ME05 (Hybrid drive 85 kW-94 kW variant (incl. plug-in)) |
AR27.10-P-0005OLG | ||
| 2 | Clean electric machine in area of cap (1). | Assembly cleaner | *BR00.45-Z-1028-04A |
| 3 | Install transmission in assembly device. | Model 205 with transmission 725.017/047 with code ME05 (Hybrid drive 85 kW-94 kW variant (incl. plug-in)) Model 253 with transmission 725.047 with code ME05 (Hybrid drive 85 kW-94 kW variant (incl. plug-in)) |
AR27.10-P-0600-01MRD |
| 000 588 00 31 00 Assembly stand for cars | Boom crane |
WS01.00-Z-3028KOB | |
| Fig 7 | |||
| Fig 4 | |||
| Fig 3 | |||
| 4 | Remove the radial shaft sealing ring from the electric machine. | AR08.10-P-0040OLC | |
| 5 | Remove soundproofing of electric machine. | ||
| 6 | Remove screws (2) and screw in guide pins. | Fig 8 | |
| 7 | Remove screws (3). | ||
| 8 | Remove screws (4). | ||
| 9 | Remove cover (1). | Do not drive in any sharp-edged tools. The cap and/or electric machine will otherwise be damaged. |
|
| 10 | Unscrew the guide pins, remove the seal, and cover the electric machine using a dust cap. | Cover electric machine immediately after opening. The electric machine will otherwise be damaged due to the ingress of dirt and moisture. |
Fig 8 |
| Fig 5 | |||
| 11 | Remove electric machine rotor position sensor (L20). | When replacing the cover (1). | AR08.10-P-0003OLC |
| 12 | Remove sealing rings (8). | Fig 2 | |
| Check | |||
| 13 | Check cap (1) for damage. | If there is a problem, ↓ Replace cap (1). |
|
| Install | |||
| 14 | Install electric machine rotor position sensor (L20). | When replacing the cover (1). | AR08.10-P-0003OLC |
| 15 | Clean sealing surface on cap (1). | Assembly cleaner | *BR00.45-Z-1028-04A |
| 16 | Install new sealing rings (8). | Fig 2 | |
| 17 | Remove dust cap, clean sealing surface of electric machine, and place seal on electric machine. | Remove dust cap only immediately before placing on the cap (1). The electric machine will otherwise be damaged due to the ingress of dirt and moisture. Assembly cleaner |
*BR00.45-Z-1028-04A |
| Fig 5 | |||
| 18 | Align bearing race (5). | The bore (7) must be aligned in the bearing ring (5) with the groove (6). Otherwise the electric machine can get damaged. |
|
| 19 | Screw in guide pins. | Fig 8 | |
| 20 | Position cap (1) on electric machine. | ||
| 21 | Tighten screws (3) by hand slightly to prevent bearing race (5) from twisting. | The bore (7) must be aligned in the bearing ring (5) with the groove (6). Otherwise the electric machine can get damaged. |
|
| 22 | Tighten screws (4) in a crosswise pattern. | *BA27.10-P-1018-04H | |
| 23 | Unscrew guide pins and tighten screws (2). | *BA27.10-P-1018-04H | |
| Fig 8 | |||
| 24 | Tighten screws (3). | *BA27.10-P-1023-04H | |
| 25 | Install soundproofing of electric machine. | ||
| 26 | Install the radial shaft sealing ring of the electric machine. | AR08.10-P-0040OLC | |
| 27 | Measure insulation resistance of electric machine, fill out the test log, and add to the repair documentation. | ||
| 000 588 00 19 00 Insulation measuring unit | WS54.00-P-0046B | ||
| Test log for insulation resistance measurement, form | OF27.19-P-3000-01A | ||
| AR08.10-P-0004-01MRD | |||
| Electric machine insulation resistance | *BE08.10-P-1001-01B | ||
| 28 | Check resistance values of electric machine sensors. | ||
| AD08.30-P-0001-01LF | |||
| 000 588 06 19 00 Measuring instrument | The plug for the test adapter must audibly engage in the contact carrier. False measurements can occur otherwise. The test equipment must be checked for proper operation before starting the test work in accordance with the manufacturer's specifications. False measurements can occur otherwise. |
WS54.00-P-0043B | |
| Fig 9 | |||
| Fig 6 | |||
| 29 | Remove transmission from assembly device. | ||
| 000 588 00 31 00 Assembly stand for cars | Boom crane |
WS01.00-Z-3028KOB | |
| Fig 7 | |||
| Fig 4 | |||
| Fig 3 | |||
| 30 | Install transmission. | Model 205.013/213 with engine 654 with transmission 725.0 with code ME05 (Hybrid drive 85 kW-94 kW variant (incl. plug-in)) |
AR27.10-P-0005OLI |
| Model 253.311/911 with engine 654.9 with transmission 725.047 with code ME05 (Hybrid drive 85 kW-94 kW variant (incl. plug-in)) |
AR27.10-P-0005OLG |
ELECTRIC MACHINE INSULATION RESISTANCE
| Number | Designation | Transmission 725.0 | |||
|---|---|---|---|---|---|
| BE08.10-P-1001-01B | Electric machine insulation resistance | Isolation resistance | U-phase downstream of transmission ground connection | MΩ | >1 |
| V-phase downstream of transmission ground connection | MΩ | >1 | |||
| W-phase downstream of transmission ground connection | MΩ | >1 | |||
| Test voltage | V | 500 | |||
AUTOMATIC TRANSMISSION COMPLETE
| Number | Designation | Transmission 725.0/1 | |
|---|---|---|---|
| BA27.10-P-1018-04H | Screw/bolt, housing cover to torque converter housing | Nm | 8 |
AUTOMATIC TRANSMISSION COMPLETE
| Number | Designation | Transmission 725.0/1 | |
|---|---|---|---|
| BA27.10-P-1023-04H | Screw/bolt, oil distributor bushing to housing cover | Nm | 8 |
REPAIR MATERIALS
| Number | Designation | Order number |
|---|---|---|
| BR00.45-Z-1028-04A | Assembly cleaner | A 000 986 56 01 |