Remove/Install Expansion Reservoir - AR20.30-P-4950LW
Engine 264, 274.9, 276.8, 642, 651, 654, 656 in model 253
Engine 264, 274.9, 276.8, 651, 654 in model 205
Shown on engine 651 in model 205 (except 205.012/212)
Shown on engine 654 in model 205
| 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 overpressure. Do not pour coolant into beverage containers. Wear protective gloves, protective clothing and safety glasses. |
AS20.00-Z-0001-01A | |
| Risk of injury caused by scraping or cutting body parts on sharp vehicle parts | Always wear protective gloves when working on or near sharp and non-deburred vehicle parts. Deburr repair panels. |
AS00.00-Z-0017-01A | |
| Notice | Notes on avoiding damage through contamination and foreign objects | AH00.00-P-5000-01A | |
| Notice | Information on preventing damage to electronic components due to electrostatic discharge | AH54.00-P-0001-01A | |
| Notice | Notes on coolant | AH20.00-P-2080-01KOA | |
| Notes on coolant level | AH20.00-P-1142-01CW | ||
| Remove/install | |||
| 1 | Release and disconnect electrical connector from DPF differential pressure sensor (B28/8). | Engine 654 in model 205 except code 926 (Exhaust gas cleaning with Euro 4 technology) Engine 654, 656 in model 253 except code 926 (Exhaust gas cleaning with Euro 4 technology) except code 9O1 (Fuel cell pre-installation) |
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| 2 | Remove heat shield (8) from expansion reservoir (2). | Engine 654 in model 205 Engine 654, 656 in model 253 |
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| 3 | Carefully unscrew cap (1). | ||
| 4 | Suction off coolant from the expansion reservoir (2) and capture coolant in a suitable container. | Fig 2 | |
| 5 | Remove bleed line (3) from expansion reservoir (2). | AR20.20-P-7441-01RQ | |
| 6 | Unclip expansion reservoir (2) from rubber guides (4) and front guide. | ||
| 7 | Remove electric lines (5) from expansion reservoir (2). | ||
| 8 | Release and disconnect electrical connector (7). | ||
| 9 | Remove coolant hose (6) from expansion reservoir (2) and seal openings using suitable protective covers. | AR20.20-P-7441-01RQ | |
| Fig 3 | |||
| 10 | Remove expansion reservoir (2). | ||
| Check | |||
| 11 | Check rubber guides (4) for wear and damage. | If damage or wear are present, ↓ replace rubber guides (4). |
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| 12 | Install in the reverse order. | ||
| 13 | Check engine Cooling system for leak tightness. | AR20.00-P-1010LW |