Remove/install exhaust gas recirculation positioner - AR14.20-P-1020SXI
ENGINE 642 in MODEL 221
MODIFICATION NOTES
| 20.11.13 | Work procedure altered and special tool for electrical vacuum pump and NTKL adaptation, added. | Operation steps 14 to 26 | AR20.00-P-1142-04A |
Shown on engine 642.9
| 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 | |
| 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 | |
| Notes on coolant level | AH20.00-P-1142-01SXI | ||
| Notes on coolant | AH20.00-N-2080-01A | ||
| Remove/install | |||
| 1 | Remove engine cover | AR01.10-P-2405SXI | |
| 2 | Disconnect electrical connection from left exhaust gas recirculation positioner (Y27/9). | ||
| 3 | Remove screw/bolt (1) | *BA14.20-P-1002-01G | |
| 4 | Carefully open cap for the coolant system | For vehicles with a water-cooled exhaust gas recirculation positioner | |
| 5 | Detach coolant hoses on left exhaust gas recirculation positioner (Y27/9) | For vehicles with a water-cooled exhaust gas recirculation positioner |
|
| 6 | Remove left exhaust gas recirculation positioner (Y27/9) | ||
| 7 | Install in the reverse order | ||
| 8 | Pour in coolant and bleed cooling system | For vehicles with a water-cooled exhaust gas recirculation positioner | |
| AR20.00-P-1142-04A | |||
| Anticorrosion/antifreeze agents (Sheet 325.0) | Anticorrosion/antifreeze agents (Specification 325.0). See https://bevo.mercedes-benz.com/index.php?language_id=1 | ||
| Coolant specifications | Coolant (Specification 310.1). See https://bevo.mercedes-benz.com/index.php?language_id=1 | ||
| *BF20.00-P-1001-02W | |||
| Fig 3 | |||
| Fig 4 | |||
| Fig 2 | |||
| Fig 5 | |||
| 9 | Check cooling system for leaktightness | For vehicles with a water-cooled exhaust gas recirculation positioner | |
| AR20.00-P-1010SX |
EXHAUST GAS RECIRCULATION
| Number | Designation | ENGINE 642.82/83/85/86/87/886/9 | |
|---|---|---|---|
| BA14.20-P-1002-01G | Bolt, exhaust gas recirculation positioner to charge air distribution line | Nm | 12 |
COOLING SYSTEM
| Number | Designation | ENGINE 642 in MODEL 203, 209, 211, 219, 221 | |||
|---|---|---|---|---|---|
| BF20.00-P-1001-02W | Cooling system | Workshop replacement quantity | Liter | ≈7, 5 | |
| Antifreeze/water | Up to -37 °C | % | 50/50 | ||
| As of -38 °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 | ||||
| Specification | Premixed coolant (Specification 326.0). See https://bevo.mercedes-benz.com/index.php?language_id=1 | ||||