Drain/pour in coolant - AR20.00-P-1142OMA
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ENGINE 651 in MODEL 212 (except 212.098/298), 218, 221
MODIFICATION NOTES
| 12.2.14 | Work procedure altered and special tools for electrical vacuum pump and NTKL adaptation, added. | Operation steps 14 to 26 | AR20.00-P-1142-04A |
| 26.9.14 | coolant mixing ratio | BF20.00-P-1001-04A |
| Risk of injury to skin and eyes suffering scalding from contact with hot coolant spray. Risk of poisoning from 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 | ||
| Drain off | |||
| 1 | Unscrew cap (1) on coolant expansion reservoir (2) | ||
| 2.1 | Remove bottom section of soundproofing | ENGINE 651 in MODEL 212 (except 212.098/298), 218 | |
| AR94.30-P-5300EW | |||
| 2.2 | Remove lower engine compartment paneling | ENGINE 651 in MODEL 221 | |
| AR61.20-P-1105SX | |||
| 3 | Push drain hose onto fitting on radiator (3) | ||
| 4 | Loosen drain screw (4) at radiator and drain coolant. | Remove radiator drain screw (4) until the coolant flows out. Permanent damage to the radiator drain screw (4) will occur otherwise. |
|
| 5 | Tighten radiator drain screw (4) and detach drain hose from fitting at radiator (3). | ||
| 6 | Slide drain hose onto crankcase drain screw (5) | ||
| 7 | Unfasten crankcase drain screw (5); drain off coolant | ||
| 8 | Tighten crankcase drain screw (5) and detach drain hose from crankcase drain screw (5) | *BA20.00-P-1001-02A | |
| Pour in | |||
| 9 | Pour in coolant and ventilate engine cooling system | AR20.00-P-1142-04A | |
| Coolant specifications | Coolant (Specification 310.1). See https://bevo.mercedes-benz.com/index.php?language_id=1 | ||
| Anticorrosion/antifreeze agents (Specification 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 | |||
| Figure | |||
| Figure | |||
| Check | |||
| 10 | Check engine cooling system for leaktightness | ENGINE 651 in MODEL 212 (except 212.098/298), 218 | AR20.00-P-1010OMA |
| ENGINE 651 in MODEL 221 | AR20.00-P-1010SX | ||
| 11.1 | Install bottom section of soundproofing | ENGINE 651 in MODEL 212 (except 212.098/298), 218 | |
| AR94.30-P-5300EW | |||
| 11.2 | Install lower engine compartment paneling | ENGINE 651 in MODEL 221 | |
| AR61.20-P-1105SX | |||
| Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running. | Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts. | AS00.00-Z-0005-01A | |
| 12 | Perform an engine test run and check engine cooling system for proper operation |
ENGINE COOLING, GENERAL
| Number | Designation | ENGINE 651 | |
|---|---|---|---|
| BA20.00-P-1001-02A | Coolant drain plug on crankcase | Nm | 12 |
COOLANT MIXING RATIO
| Number | Designation | ENGINE ALL | ||
|---|---|---|---|---|
| BF20.00-P-1001-04A | Coolant mixing ratio | Antifreeze/water | to -37°C |
50/50 |
| Antifreeze/water | to -45°C |
55/45 | ||
| Specification | Coolant (Specification 310.1). See https://bevo.mercedes-benz.com/index.php?language_id=1 | |||