Remove/install circulation pump for low-temperature water circuit - AR09.41-P-6925MMV
ENGINE 276.8 in MODEL 205
MODIFICATION NOTES
| 26.9.14 | Mixing ratio for coolant | *BF20.00-P-1001-04A |
| Risk of injury to skin and eyes suffering scalding from contact with hot coolantspray. 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-1105LW | |
| 2 | Drain coolant from low-temperature circuit | AR09.41-P-6834LW | |
| Notes on coolant | AH20.00-N-2080-01A | ||
| *BF20.00-P-1001-04A | |||
| 3 | Disconnect electrical line (5) at low-temperature water circuit circulation pump (1) | ||
| 4 | Detach coolant hoses connectors (2) at low-temperature water circuit circulation pump (1) | AR20.20-P-7441-01RQ | |
| 5 | Remove screw/bolts (3) and remove low-temperature water circuit circulation pump (1) together with bracket (4) and elastomer bearing from bracket on longitudinal member | ||
| 6 | Install in the reverse order | ||
| Check | |||
| 7 | Check low-temperature circuit cooling system for leaktightness | AR20.00-P-1010LW | |
| 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 cooling system for proper operation |
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 | |||
| Specification | Anticorrosion/antifreeze agents (Specification 325.0). See https://bevo.mercedes-benz.com/index.php?language_id=1 | |||