Drain/fill in coolant - AR20.00-P-1142W
ENGINES 152, 276 in MODEL 172
Shown on engine 276
Engine 276
| Drain | |||
| Risk of injury caused by fingers being pinched or crushed when removing, installing or aligning hoods, doors, trunk lids, liftgates or sliding roof | Keep body parts and limbs well clear of moving parts. | AS00.00-Z-0011-01A | |
| Risk of injury to skin and eyes caused by scalding from contact with hot coolant spray. Risk of poisoning caused by swallowing coolant. | Do not open cooling system unless coolant temperature is below 90°C. Open cap slowly and release the pressure. Do not pour coolant into beverage containers. Wear protective gloves, protective clothing and safety glasses. |
AS20.00-Z-0001-01A | |
| Notes on coolant | AH20.00-N-2080-01A | ||
| 1 | Unscrew cap (2) from coolant expansion reservoir (4) | ||
| 2 | Remove bottom engine compartment paneling | AR61.20-P-1105W | |
| Drain coolant from radiator | |||
| 3 | Push drain hose (3) onto left fitting (3a) on radiator (6) | ||
| 4 | Open drain plug (7) at radiator (6) and drain coolant | ||
| Drain coolant from coolant pump (1) | Engine 276 | ||
| 5 | Loosen drain screw (5) on coolant pump (1) | ||
| 6 | Push drain hose (3) onto drain screw (5) | ||
| 7 | Open drain screw (5) on coolant pump (1) and drain coolant | ||
| Filling | |||
| 8 | Tighten drain plug (7) on cooler (6) and detach drain hose (3) from fitting (3a) | ||
| 9 | Tighten drain plug (5) at coolant pump and detach siphon hose (3) from fitting (3) | Engine 276 | |
| *BA20.10-P-1008-01AA | |||
| 10 | Pour in coolant and bleed cooling system | AR20.00-P-1142-04A | |
| Coolant specifications | Sheet 310.1 | Coolant (Specification 310.1). See https://bevo.mercedes-benz.com/index.php?language_id=1 | |
| Anticorrosion/antifreeze agents (sheet 325.0) | Sheet 325.0 | Anticorrosion/antifreeze agents (Specification 325.0). See https://bevo.mercedes-benz.com/index.php?language_id=1 | |
| *BF20.00-P-1001-04A | |||
| Figure | |||
| Figure | |||
| Notes on coolant level | AH20.00-P-1142-01V | ||
| 11 | Inspect cooling system for leaks | AR20.00-P-1010W | |
| Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns during starting procedure or when working near the engine as it is running | Secure vehicle to prevent it from moving by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts. |
AS00.00-Z-0005-01A | |
| 12 | Perform engine test run and check cooling system for proper operation |
COOLANT PUMP, COOLANT THERMOSTAT
| Number | Designation | Engine 276 | ||
|---|---|---|---|---|
| BA20.10-P-1008-01AA | Drain screw on coolant pump | Stage 1 | Nm | 6 |
| Stage 2 | ∠° | 90 | ||
MIXTURE RATIO FOR COOLANT
| Number | Designation | ENGINE all | ||
|---|---|---|---|---|
| BF20.00-P-1001-04A | Mixture ratio for coolant | Antifreeze/water | up to -37°C | 50/50 |
| up to -45°C | 55/45 | |||
| Specifications for service products | - | Coolant (Specification 310.1). See https://bevo.mercedes-benz.com/index.php?language_id=1 | ||
| - | Anticorrosion/antifreeze agents (Specification 325.0). See https://bevo.mercedes-benz.com/index.php?language_id=1 | |||