Remove/install coolant thermostat - AR20.10-P-2460OGR
ENGINE 642 in MODEL 166
MODIFICATION NOTES
| 26.9.14 | Coolant Mixing Ratio | BF20.00-P-1001-04A |
| Remove/install | |||
| 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 | |
| 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 | |
| 1 | Remove engine cover | ||
| 2 | Remove engine charge air duct on ATL | AR09.41-P-8622OGR | |
| 3 | Drain coolant at radiator | AR20.00-P-1142GQ | |
| Notes on coolant | AH20.00-N-2080-01A | ||
| 4 | Remove coolant hose (3) out of the thermostat housing bracket (1) | ||
| 5 | Disconnect electrical connection on two-disk thermostat heating element (R48) | For vehicles with a heated coolant thermostat | |
| 6 | Disconnect coolant hose (4) at thermostat housing (1) | Check sealing rings and catch springs for damage. In this way one can avoid leaks on the engine. Thoroughly clean connection but do not grease and ensure exact seating of the catch springs: ↓ |
|
| Open and close coupling | AR09.41-P-1311-01AL | ||
| 7 | Remove securing clip (6) and take connector (7) for the fuel line (8) out of the bracket | ||
| 8 | Remove screw/bolts (5) | ||
| 9 | Remove screw/bolts (2, 9) | Do not bend the fuel lines. This prevents leaks occurring. |
|
| *BA20.10-P-1002-01S | |||
| 10 | Remove thermostat housing (1) with coolant thermostat | ||
| 11 | Install in the reverse order | ||
| 12 | Pour in coolant and bleed cooling system | AR20.00-P-1142-04A | |
| 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 | |||
| Figure | |||
| Figure | |||
| Check | |||
| 13 | Check cooling system for leak tightness | AR20.00-P-1010GQ |
COOLANT PUMP, COOLANT THERMOSTAT
| Number | Designation | ENGINE 642 | |
|---|---|---|---|
| BA20.10-P-1002-01S | Bolt, coolant thermostat housing to charge air manifold | Nm | 9 |
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 |
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