Remove/Install Expansion Reservoir - AR20.30-P-4950MNI
Engine 177 in model 290
Shown on model 290.689
| 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 overpressure. Do not pour coolant into beverage containers. Wear protective gloves, protective clothing and safety glasses. |
AS20.00-Z-0001-01A | |
| Notice | Notes on coolant | AH20.00-P-2080-01KOA | |
| Remove/install | |||
| 1 | Remove cap (1). | ||
| 2 | Extract coolant from expansion reservoir (2). | Fig 1 | |
| 3 | Remove bleed line (5) from expansion reservoir (2) and seal openings with protective covers. | AR20.20-P-7441-01RQ | |
| Fig 2 | |||
| 4 | Release and disconnect electrical connector at expansion reservoir (2). | ||
| 5.1 | Clamp off coolant hose (4) with hose clamp pliers and seal openings with protective covers. | Engine 177 in model 290.688 |
Fig 2 |
| SI Hose clamp pliers | Fig 3 | ||
| 5.2 | Remove coolant hose (4) from expansion reservoir (2) and seal openings with protective covers. | Engine 177 in model 290.689 | AR20.20-P-7441-01RQ |
| Fig 2 | |||
| 6 | Remove expansion reservoir (2) from bracket (3). | ||
| 7 | Remove expansion reservoir (2). | ||
| 8 | Install in the reverse order. | ||
| 9 | Check coolant level and correct if necessary. Notes on coolant level | AH20.00-P-1142-01CW | |
| *BF20.00-P-1001-02LA | |||
| *BF20.00-P-1001-04A | |||
| 10 | Check engine cooling system for leak tightness. | AR20.00-P-1011MNI | |
| 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 | |
| 11 | Perform engine test run and check engine cooling system for proper operation. |
COOLING SYSTEM
| Number | Designation | Engine 177 in model 290 except code ME10 (Hybrid vehicle (plug-in, PHEV)) | Engine 177 in model 290 with code ME10 (Hybrid vehicle (plug-in, PHEV)) | |||
|---|---|---|---|---|---|---|
| BF20.00-P-1001-02LA | Cooling system | Workshop replacement amount | Main circuit | Liter | ≈15, 3 | ≈14, 3 |
| Low Temp circuit 1 | Liter | ≈6, 4 | ≈10, 7 | |||
| Low Temp circuit 2 | Liter | - | ≈5, 6 | |||
| Antifreeze/water | Down to -37°C | % | 50/50 | 50/50 | ||
| -38°C and below | % | 55/45 | 55/45 | |||
| Fluids specification | BB00.40-P-0310-01A | BB00.40-P-0310-01A | ||||
| Fluids specification | BB00.40-P-0325-06A | BB00.40-P-0325-06A | ||||
| Fluids specification | BB00.40-P-0326-06A | BB00.40-P-0326-06A | ||||
COOLANT MIXING RATIO
| Number | Designation | All engines, except engine 178 in model 190.381 | |||
|---|---|---|---|---|---|
| BF20.00-P-1001-04A | Coolant mixing ratio | Antifreeze/water | Up to -25°C | % | - |
| Up to -37°C | % | 50/50 | |||
| As of -38°C | % | 55/45 | |||
| Overview and specifications sheet | BB00.40-P-0310-01A | ||||
| References to sheet specification | BB00.40-P-0310ZZ | ||||