Remove/install coolant thermostat - AR20.10-P-2460OGE
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ENGINES 642 in MODELS 207, 212, 218
Shown on engine 642.850
Shown on ENGINE 642.852
Turbocharger without coolant cooling
Turbocharger with coolant cooling
| Remove/install | |||
| Risk of death caused by vehicle slipping or toppling off of the lifting platform. | Align vehicle between columns of vehicle lift and position four support plates at vehicle lift support points specified by vehicle manufacturer. | AS00.00-Z-0010-01A | |
| 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 | Remove engine trim panel | ||
| 2 | Remove engine charge air duct on turbocharger (14b) | Engines with a turbocharger (14b) with coolant cooling | AR09.41-P-8622SXI |
| 3 | Drain coolant | Model 207 | AR20.00-P-1142CW |
| Model 212, 218 |
AR20.00-P-1142OGE | ||
| 4 | Remove coolant hose (3) out of the thermostat housing holder (1) | ||
| 5 | Disconnect electrical connector for coolant thermostat heating element (R48) | For vehicles with a heated coolant thermostat | |
| 6 | Disconnect coolant hose (4) at thermostat housing (1) | AR09.41-P-1311-01AL | |
| 7 | Remove securing clip (6) and take connector (7) for the fuel line (8) out of the bracket | Engines with a turbocharger (14b) with coolant cooling | |
| 8 | Remove bolts (5) | Engines with a turbocharger (14b) with coolant cooling | |
| 9 | Unscrew bolts (2, 9) | ||
| *BA20.10-P-1002-01S | |||
| 10 | Remove thermostat housing (1) with coolant thermostat | ||
| 11 | Install in the reverse order | ||
| Checking | |||
| 12 | Pour in coolant and bleed cooling system | AR20.00-P-1142-04A | |
| Figure | |||
| Figure | |||
| Coolant specifications | Specification 310.1 | Coolant (Specification 310.1). See https://bevo.mercedes-benz.com/index.php?language_id=1 | |
| Anticorrosion/antifreeze agents (Specification 325.0) | 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 | |||
| 13 | Inspect cooling system for leaks | Model 207 | AR20.00-P-1010CW |
| Model 212, 218 | AR20.00-P-1010OMA |
COOLANT PUMP, COOLANT THERMOSTAT
| Number | Designation | ENGINE 642 | |
|---|---|---|---|
| BA20.10-P-1002-01S | Bolt, coolant thermostat housing to charge air manifold | Nm | 9 |
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 | 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 | |||