Remove/Install Coolant Thermostat For High Temperature Circuit - AR20.10-P-2464MFG
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Engine 139 in model 118, 177, 247
Fig 1: Coolant Thermostat For High Temperature Circuit Components Location - Model 118 With Engine 139
| 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 . Skin or eye injuries may result when handling hot or glowing objects. | Wear protective gloves, protective clothing and safety glasses, if necessary. | AS00.00-Z-0002-01A | |
| 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 | 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 | |
| Notice | Notes on avoiding damage through contamination and foreign objects | AH00.00-P-5000-01A | |
| Notes on coolant level | AH20.00-P-1142-01CW | ||
| Remove/install | |||
| 1 | Drain off coolant. | AR20.00-P-1142MFG | |
| 2 | Remove charge-air distributor. | AR09.41-P-8683MFG | |
| 3 | Release and disconnect electrical connector (6) from coolant line (4). | ||
| 4 | Expose electrical wiring harness, remove coolant line (4), and place to one side. | ||
| 5 | Release and disconnect coolant line (4) and seal exposed openings with suitable stop plugs. | AR20.20-P-7441-01RQ | |
| Fig 2 | |||
| 6 | Remove coolant line (4) and seal openings with suitable stop plugs. | AR20.20-P-7471-01MFG | |
| *BA20.10-P-1016-01AC | |||
| *BA20.10-P-1009-01AC | |||
| Fig 2 | |||
| 7 | Remove coolant line (3) and seal openings with suitable stop plugs. | Install new hose and clamps. |
AR20.20-P-7471-01MFG |
| *BA20.10-P-1016-01AC | |||
| *BA20.10-P-1008-01AC | |||
| *BA20.10-P-1009-01AC | |||
| Fig 2 | |||
| 8 | Remove coolant line (7) and seal openings with suitable stop plugs. | AR20.20-P-7441-01RQ | |
| *BA00.10-P-1002-04A | |||
| *BA20.10-P-1010-01AC | |||
| Fig 2 | |||
| 9 | Release and disconnect electrical connector (2). | ||
| 10 | Remove coolant line (5) from the coolant thermostat (1) and seal openings with suitable stop plugs. | Fig 2 | |
| 11 | Unscrew screws (16) and remove coolant thermostat (1). | *BA20.10-P-1006-01AC | |
| 12 | Clean sealing surfaces. | Do not use any sharp-edged tools or abrasive paper. The sealing surfaces can be damaged otherwise. Loctite 7063 (400 ml) cleaning spray |
*BR00.45-Z-1046-04A |
| 13 | Remove high-temperature circuit coolant temperature sensor. | Only when replacing the coolant thermostat (1). | AR07.04-P-2717MFG |
| 14 | Install in the reverse order. | ||
| 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 | |
| 15 | Perform engine test run. While doing so, check engine for proper operation and leak tightness. | ||
| 16 | Install lower engine compartment lining. | AR61.20-P-1105MFR | |
| 17 | Install upper engine cover. | ||
| AP01.10-P-2405-01K |
METRIC SCREWS/BOLTS AND NUTS AS PER MBN 10 105, 10 143
| Number | Designation | 8.8 | 10.9 | |
|---|---|---|---|---|
| BA00.10-P-1002-04A | M6x1 | Nm | 9 | 13 |
COOLANT PUMP, COOLANT THERMOSTAT
| Number | Designation | Engine 139 | |
|---|---|---|---|
| BA20.10-P-1006-01AC | Bolt, coolant thermostat to crankcase/cylinder head | Nm | 8 |
COOLANT PUMP, COOLANT THERMOSTAT
| Number | Designation | Engine 139 | ||
|---|---|---|---|---|
| BA20.10-P-1008-01AC | Screw, coolant line to coolant pipe/cylinder head/crankcase/coolant thermostat/coolant hose/timing case | M6 | Nm | 8 |
COOLANT PUMP, COOLANT THERMOSTAT
| Number | Designation | Engine 139 | |
|---|---|---|---|
| BA20.10-P-1009-01AC | Screw, coolant pump to coolant hose/coolant line | Nm | 8 |
COOLANT PUMP, COOLANT THERMOSTAT
| Number | Designation | Engine 139 | |
|---|---|---|---|
| BA20.10-P-1010-01AC | Screw, coolant thermostat to coolant hose | Nm | 8 |
COOLANT PUMP, COOLANT THERMOSTAT
| Number | Designation | Engine 139 | |
|---|---|---|---|
| BA20.10-P-1016-01AC | Clamp, coolant pump to coolant hose/coolant line | Nm | 3 |
REPAIR MATERIALS
| Number | Designation | Order number |
|---|---|---|
| BR00.45-Z-1046-04A | Loctite 7063 (400 ml) cleaning spray | A 001 986 71 71 09 |