Remove/install circulation pump for low-temperature water circuit - AR09.41-P-6925ELS
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ENGINE 276.8 in MODEL 207, 212, 218
MODIFICATION NOTES
| 26.9.14 | coolant mixing ratio | BF20.00-P-1001-04A |
Shown on model 212
| 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 | |
| Remove/install | |||
| 1 | Remove lower engine compartment paneling | AR61.20-P-1105EW | |
| 2 | Drain coolant from low-temperature circuit | ||
| Notes on coolant | AH20.00-N-2080-01A | ||
| *BF20.00-P-1001-04A | |||
| Figure | |||
| 3 | Disconnect electrical connection (1) on charge air cooler circulation pump (M44) | ||
| 4 | Loosen clamps (4) and detach coolant hoses (3) at charge air cooler circulation pump (M44) | Figure | |
| 5 | Remove screw/bolt (2) and remove charge air cooler circulation pump (M44) together with bracket (5) and elastomer bearing from bracket on longitudinal member | ||
| 6 | Install in the reverse order | ||
| Check | |||
| 7 | Check engine cooling system low-temperature circuit for leaktightness | MODEL 207 with ENGINE 276.8 | AR20.00-P-1010ELA |
| MODEL 212, 218 with ENGINE 276.8 |
AR20.00-P-1010EL | ||
| 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 | |
| 8 | Perform an engine test run check engine cooling system for proper operation and leaktightness |
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 | ||
| Specifications | Coolant (Specification 310.1). See https://bevo.mercedes-benz.com/index.php?language_id=1 | |||
| Specifications | Anticorrosion/antifreeze agents (Specification 325.0). See https://bevo.mercedes-benz.com/index.php?language_id=1 | |||