Remove/install heater unit - AR83.70-P-5302EW
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MODEL 212, 218 with CODE (228) Stationary heater
Shown on model 212
| Remove/install | |||
| 1 | Open engine hood and move to vertical position | Model 218 | |
| Model 212 | AR88.40-P-1000EW | ||
| Risk of injury to skin and eyes caused by scalding from contact with hot coolant spray. Risk of poisoning caused by 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 | |
| 2 | Release overpressure in coolant circuit | ||
| Risk of death caused by vehicle slipping or toppling off of the lifting platform. | Align vehicle between columns of vehicle lift and position four support plates at vehicle lift support points specified by vehicle manufacturer. | AS00.00-Z-0010-01A | |
| 3 | Raise vehicle with vehicle lift | ||
| 4 | Remove right front section on fender liner in front fender | ||
| 5 | Remove bolts (1) | ||
| 6 | Disconnect electrical connector (2) | ||
| 7 | Disconnect electrical connector (3) | ||
| 8 | Detach coolant hoses (4, 5, 6) with pinch-off pliers (7) | ||
| 9 | Detach coolant hoses (4, 5, 6) | Pliers for spring-loaded band-type clamps | |
| 10 | Disconnect electrical connector (8) | ||
| 11 | Unscrew nut (9) | ||
| 12 | Unscrew nut (10) | ||
| 13 | Disconnect fuel hose (11) from fuel line (12) | ||
| 14 | Remove stationary heater (A6) with bracket (13) | ||
| 15 | Install in the reverse order | ||
| 16 | Pour in coolant and bleed cooling system | AR20.00-P-1142-04A | |
| Figure | |||
| Figure | |||
| *BF20.00-P-1001-04A | |||
| Notes on coolant level | AH20.00-P-1142-01CW | ||
| Risk of explosion caused by fuel vapors igniting, Risk of poisoning caused by inhaling combustible gases and risk of injury caused by burns during and after operation of heater unit | Do not operate stationary heater, auxiliary heater or engine with heater booster in closed areas or when refueling. Allow heater unit to cool down after operation and wear protective gloves. | AS83.70-Z-0002-01A | |
| 17 | Carry out initial startup of stationary heater using STAR DIAGNOSIS | ||
| Connect STAR DIAGNOSIS and read out fault memory | AD00.00-P-2000-04A |
MIXTURE RATIO FOR COOLANT
| Number | Designation | ENGINE all | ||
|---|---|---|---|---|
| BF20.00-P-1001-04A | Mixture ratio for coolant | Antifreeze/water | Up to -37°C | 50/50 |
| up to -45°C | 55/45 | |||
| Specifications for service products | 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 | |||