Inspect Cooling System For Coolant Leaks - Ar20.00-S-1010S
ENGINE 642.898 in MODEL 906
Illustrated on model 639
INSPECT COOLING SYSTEM FOR LEAKS
| Remove/install | |||
| 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 | |
| Notes on coolant | AH20.00-N-2080-01A | ||
| Notes on coolant level | AH20.00-P-1142-01SD | ||
| 1 | Set heater switches to maximum heat output | ||
| 2 | Switch auxiliary heater to full output | Only for code (H13) Additional heat exchanger in passenger compartment Code (H13) Additional heat exchanger in cargo area Code (H12) Auxiliary heater (warm water) | |
| 3 | Open expansion reservoir (1) | ||
| 4 | Check coolant level, correct if necessary | ||
| Coolant specifications | Sheet 310.1 | BB00.40-P-0310-01A | |
| Anticorrosion/antifreeze agents (sheet 325.0) | Sheet 325.0 | BB00.40-P-0325-00A | |
| 5 | Mount test cap (2) at expansion reservoir (1) | Figure | |
| 6 | Connect pressure pump (3) at tester cap (2) | Fig 2 | |
| 7 | Apply test pressure to cooling system | Engines 112, 272 in MODEL 636, 639 Test pressure Engine 642 in model 639, Engine 646, 651 in model 636, 639, Engine 271, 272, 642, 646, 651 in model 906 Engine 651 in model 900 |
|
| Test pressure | |||
| 8 | Remove bottom engine compartment paneling | Only on model 636, Model 639.7/8 as of vehicle identification number (VIN) 055347 |
AR61.20-S-1105S |
| Checking | |||
| 9 | Check cooling and heating hoses as well as their connecting points for proper condition and coolant loss; seal, if necessary | ||
| 10 | Install in the reverse order |
CHECK VALUES FOR COOLING SYSTEM CAP PRESSURE - ENGINE 642 IN MODEL 906
| Number | Designation | Engine 642 in model 906 | |
|---|---|---|---|
| BE20.30-N-1004-01B | Test pressure | bar | 1.5 |