Check Engine Cooling System For Leaktightness - AR20.00-P-1011SC
Engine 176, 177 in model 223
Shown on engine 176
| Risk of injury due to fan starting unexpectedly | Do not reach into the rotation or hazard area of the fan. Wear closed and close-fitting work clothes. | AS20.40-Z-0001-01A | |
| 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 | |
| Notice | Notes on coolant | AH20.00-P-2080-01KOA | |
| Notes on coolant level | AH20.00-P-1142-01CW | ||
| Remove | |||
| 1 | Switch on ignition. | ||
| 2 | Adjust heater to maximum heating output. | ||
| 3 | Open cap (1) on coolant expansion reservoir (2) carefully and reduce overpressure. | ||
| 4 | Check coolant level and antifreeze content of coolant. | with code ME10 (Hybrid vehicle (plug-in, PHEV)) Cooling system |
*BF20.00-P-1001-02LA |
Cooling system |
*BF20.00-P-1001-02MA | ||
| 5 | Screw tester cap (3) onto coolant expansion reservoir (2). | Fig 1 | |
| 6 | Connect pressure pump (4) at tester cap (3). | Fig 2 | |
| Check | |||
| 7 | Apply a test pressure to the engine cooling system for 2 minutes. | Do not exceed the specified test pressure. Damage will occur otherwise to the engine |
|
| cooling system. |
*BE20.30-P-1002-01D | ||
| 8 | Perform visual check of coolant-carrying component parts and connecting points for condition and coolant loss. | Where pressure loss is detected. | |
| Install | |||
| 9 | Drain off overpressure via valve at pressure pump (4). | Fig 2 | |
| 10 | Disconnect pressure pump (4) from tester cap (3). | Fig 2 | |
| 11 | Unscrew tester cap (3) at coolant expansion reservoir (2). | Fig 1 | |
| 12 | Switch off ignition. | ||
| 13 | Check coolant level and antifreeze content of coolant; correct if necessary. | with code ME10 (Hybrid vehicle (plug-in, PHEV)) Cooling system |
*BF20.00-P-1001-02LA |
| *BF20.00-P-1001-02MA | |||
| 14 | Close cap (1) at coolant expansion reservoir (2). |
COOLING SYSTEM CHECK VALUES
| Number | Designation | Engine 176 | Engine 177 | ||
|---|---|---|---|---|---|
| BE20.30-P-1002-01D | Test pressure for pressure-testing the cooling system | Overpressure | bar | 1, 4 | 1, 4 |
COOLING SYSTEM
| Number | Designation | Engine 177 in model 223 with code ME10 (Hybrid vehicle (plug-in, PHEV)) | |||
|---|---|---|---|---|---|
| BF20.00-P-1001-02LA | Cooling system | Workshop replacement amount | Main circuit | Liter | ≈ 15, 2 |
| Low temperature Circuit 1 | Liter | ≈ 10, 3 | |||
| Low temperature Circuit 2 | Liter | ≈ 6, 1 | |||
| Antifreeze/water | Down to -37°C | % | 50/50 | ||
| -38°C and below | % | 55/45 | |||
| Fluids specifications | BB00.40-P-0310-01A | ||||
| Fluids specifications | BB00.40-P-0325-06A | ||||
| Fluids specifications | BB00.40-P-0326-06A | ||||
COOLING SYSTEM
| Number | Designation | Model 223 with engine 176 | |||
|---|---|---|---|---|---|
| BF20.00-P-1001-02MA | Cooling system | Workshop replacement amount | Main circuit | Liter | ≈ 15, 2 |
| Low-temperature circuit | Liter | ≈ 2, 3 | |||
| Antifreeze/water | to -37°C | % | 50/50 | ||
| Fluids specifications | BB00.40-P-0310-01A | ||||
| Fluids specifications | BB00.40-P-0325-06A | ||||
| Fluids specifications | BB00.40-P-0326-06A | ||||
| as from -38°C | % | 55/45 | |||