Drain/Fill Coolant For 48 V On-Board Electrical System Coolant Circuit - AR20.00-P-2014SB
Engine 256 in model 223
with code B01 (48V technology)
| 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 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 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 | Notes on avoiding damage through contamination and foreign objects | AH00.00-P-5000-01A | |
| Notice | Notes on coolant | AH20.00-P-2080-01KOA | |
| Notes on coolant level | AH20.00-P-1142-01CW | ||
| Drain off | |||
| 1 | Slowly open cap (4) from expansion reservoir and release overpressure. | ||
| 2 | Remove front and center bottom engine compartment linings. | AR61.20-P-1105S | |
| 3 | Remove coolant hose (1) from 48 V on-board electrical system cooler and collect escaping coolant in suitable container. | AR20.20-P-7441-01RQ | |
| 4 | Attach coolant hose (1) to 48 V on-board electrical system cooler. | AR20.20-P-7441-01RQ | |
| 5 | Remove air duct segment (3). | ||
| 6 | Remove coolant hose (2) from the cooler for the 48 V on-board electrical system and collect escaping coolant in a suitable container. | AR20.20-P-7441-01RQ | |
| 7 | Install coolant hose (2) on the cooler for the 48 V on-board electrical system. | AR20.20-P-7441-01RQ | |
| 8 | Install air duct segment (3). | ||
| Pour in | |||
| 9 | Connect vehicle diagnostic system and switch on ignition. | ||
| AD00.00-P-2000-06FR | |||
| 10 | Start fill mode of the coolant circuit for the 48 V on-board electrical system. | ||
| 11 | Pour in the coolant and bleed the coolant circuit for the 48 V on-board electrical system. | Do not fill engine cooling system without activating fill mode. Proper distribution of the coolant is otherwise not ensured. |
AR20.00-P-1142-04OLC |
| *BF20.00-P-1001-02MA | |||
| *BE20.30-P-1005-01A | |||
| Fig 5 | |||
| Fig 4 | |||
| Fig 3 | |||
| Fig 2 | |||
| Fig 1 | |||
| 12 | End fill mode of the coolant circuit for the 48 V on-board electrical system. | ||
| 13 | Start bleed routine of 48 V on-board electrical system coolant circuit. | If the bleeding routine was not completed successfully: ↓ Repeat bleed routine of 48 V on-board electrical system coolant circuit. |
|
| 14 | Switch off ignition and disconnect diagnostic system. | ||
| AD00.00-P-2000-06FR | |||
| 15 | Check coolant level, correct if necessary. | *BF20.00-P-1001-02MA | |
| 16 | Install front and center bottom engine compartment linings. | AR61.20-P-1105S | |
| 17 | Attach cap (4) to the expansion reservoir. |
RADIATOR OR EXPANSION RESERVOIR CAP
| Number | Designation | 2-stage latch cover | ||
|---|---|---|---|---|
| BE20.30-P-1005-01A | Test pressure for pressure-testing the engine cooling system | Overpressure | bar | 1, 4 |
COOLING SYSTEM
| Number | Designation | Model 223 with engine 256 except code ME10 (Hybrid vehicle) | Model 223 with engine 256 with code ME10 (Hybrid vehicle) | |||
|---|---|---|---|---|---|---|
| BF20.00-P-1001-02MA | Cooling system | Workshop replacement amount | Main circuit | Liter | ≈ 17 | ≈ 17 |
| Low-temperature circuit | Liter | ≈ 2, 3 | ≈ 6, 8 | |||
| Antifreeze/water | to -37°C | % | 50/50 | 50/50 | ||
| Fluids specifications | BB00.40-P-0310-01A | BB00.40-P-0310-01A | ||||
| Fluids specifications | BB00.40-P-0325-06A | BB00.40-P-0325-06A | ||||
| Fluids specifications | BB00.40-P-0326-06A | BB00.40-P-0326-06A | ||||
| as from -38°C | % | 55/45 | 55/45 | |||