Drain/pour in coolant - AR20.00-P-1142SXI
ENGINE 642 in MODEL 221
MODIFICATION NOTES
| 20.11.13 | Work procedure altered and special tool for electrical vacuum pump and NTKL adaptation, added. | Operation steps 14 to 26 | AR20.00-P-1142-04A |
| 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 | |
| Risk of death caused by vehicle slipping or toppling off of the lifting platform. | Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer. | AS00.00-Z-0010-01A | |
| Notes on coolant | AH20.00-N-2080-01A | ||
| Lowering | |||
| 1 | Open engine hood | ||
| 2 | Open coolant cap (3) on coolant expansion reservoir | ||
| 3 | Remove front soundproofing bottom section | ||
| 4 | Slide the drain hose on to the left fitting (2) at the radiator | ||
| 5 | Open radiator drain screw (1) and drain off coolant | ||
| 6 | Tighten radiator drain screw (1) | ||
| 7 | Detach drain hose from fitting (2) | ||
| Filling | |||
| 8 | Pour in coolant and bleed cooling system | AR20.00-P-1142-04A | |
| Notes on coolant level | AH20.00-P-1142-01SXI | ||
| Anticorrosion/antifreeze agents (Sheet 325.0) | Anticorrosion/antifreeze agents (Specification 325.0). See https://bevo.mercedes-benz.com/index.php?language_id=1 | ||
| Coolant specifications | Coolant (Specification 310.1). See https://bevo.mercedes-benz.com/index.php?language_id=1 | ||
| *BF20.00-P-1001-02W | |||
| Fig 4 | |||
| Fig 3 | |||
| Figure | |||
| Figure | |||
| Check | |||
| 9 | Check cooling system for leaktightness | AR20.00-P-1010SX | |
| 10 | Close coolant cap (3) on coolant expansion reservoir | ||
| 11 | Install front noise encapsulation bottom section | ||
| 12 | Close engine hood |
COOLING SYSTEM
| Number | Designation | ENGINE 642 in MODEL 203, 209, 211, 219, 221 | |||
|---|---|---|---|---|---|
| BF20.00-P-1001-02W | Cooling system | Workshop replacement quantity | Liter | ≈7, 5 | |
| Antifreeze/water | Up to -37 °C | % | 50/50 | ||
| As of -38 °C | % | 55/45 | |||
| Specification | Coolant (Specification 310.1). See https://bevo.mercedes-benz.com/index.php?language_id=1 | ||||
| Specification | Anticorrosion/antifreeze agents (Specification 325.0). See https://bevo.mercedes-benz.com/index.php?language_id=1 | ||||
| Specification | Premixed coolant (Specification 326.0). See https://bevo.mercedes-benz.com/index.php?language_id=1 | ||||