Check Low-Temperature Circuit For Leaktightness - AR09.41-P-1011MNA
Engine 177 in model 205
| 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 | |
| Remove | |||
| 1 | Unscrew cap on expansion reservoir (1) | ||
| Check | |||
| 2 | Check coolant level and antifreeze content of coolant in low-temperature circuit and correct i necessary | *BF20.00-P-1001-02LA | |
| 3 | Screw tester cap (2) on expansion reservoir (1) | Fig 1 | |
| 4 | Connect pressure pump (3) at tester cap (2) | Fig 2 | |
| 5 | Apply compressed air to low-temperature circuit for 2 minutes at the test pressure | Damage can occur otherwise on the low-temperature circuit. |
|
| Test pressure for pressure-testing the low-temperature circuit | *BE20.30-P-1001-01D | ||
| 6 | Perform a visual inspection on the assembly parts carrying coolant | In the event of pressure loss |
|
| Install | |||
| 7 | Actuate pressure relief button on pressure pump (3) and relieve the pressure | Fig 2 | |
| 8 | Unscrew tester cap (2) at the expansion reservoir (1) | Fig 1 | |
| Check | |||
| 9 | Check coolant level and antifreeze content coolant | If necessary | |
| *BF20.00-P-1001-02LA | |||
| 10 | Screw cap onto expansion reservoir (1) |
COOLING SYSTEM CHECK VALUES
| Number | Designation | Engine 177 | |
|---|---|---|---|
| BE20.30-P-1001-01D | Test pressure for pressure-testing the Overpressure low-temperature circuit | bar | 1, 4 |
COOLING SYSTEM
| Number | Designation | Engine 177 in model 205 | |||
|---|---|---|---|---|---|
| BF20.00-P-1001-02LA | Cooling system | Workshop replacement amount | Main circuit | Liter | ≈ 11, 1 |
| NT1-circuit | Liter | ≈ 4, 6 | |||
| NT2-circuit | Liter | - | |||
| Antifreeze/water | Down to -37°C | % | 50/50 | ||
| -38°C and below | % | 55/45 | |||
| Specifications for Operating Fluids, sheet | BB00.40-P-0310-01A | ||||
| Specifications for Operating Fluids, sheet | BB00.40-P-0325-06A | ||||
| Specifications for Operating Fluids, sheet | BB00.40-P-0326-06A | ||||