Coolant Low-Temperature Circuit, Draining, Filling - AR09.41-P-6834XGA
Engine 176 in Model 463
As Model Year 2019
| Risk of injury on skin and eyes from scalding with hot coolant spurting out.Risk of poisoning by swallowing coolant | Open the cooling system only at coolant temperatures below 90 ° C. Slowly open the lid and release the excess pressure. Do not pour cool liquid into drinking containers. Wear protective gloves, protective clothing and protective goggles. |
AS20.00-Z-0001-01A | |
| Instructions for avoiding damage from contamination and foreign bodies | AH00.00-P-5000-01A | ||
| Notes on coolant | AH20.00-N-2080-01A | ||
| Drain | |||
| 1 | Remove the lower engine compartment panels. | AR61.20-P-1105XG | |
| 2 | Remove the cap from the expansion tank for the low-temperature circuit. | AR09.41-P-0050XGA | |
| 3 | Remove the mounting bracket for the changeover valve for the low-temperature circuit. | AR09.41-P-1220-01XGA | |
| 4 | Dismantle coolant hoses (5) on switching valve for low-temperature circuit (Y73/1) and drain the coolant into a suitable container. | AR20.20-P-7441-01RQ | |
| 5 | Attach coolant hoses (5) to low-temperature circuit changeover valve (Y73/1). | AR20.20-P-7441-01RQ | |
| 6 | Install the mounting bracket for the low-temperature circuit changeover valve. | AR09.41-P-1220-01XGA | |
| *BA61.20-P-1002-01A | |||
| Filling | |||
| 7 | Fill with clean coolant and bleed the engine cooling system in the low-temperature circuit. | AR20.00-P-1142-04A | |
| *BF20.00-P-1001-06A | |||
| *BF20.00-P-1001-04A | |||
| Fig 3 | |||
| Fig 1 | |||
| Fig 4 | |||
| Fig 2 | |||
| Check | |||
| 8 | Check the low-temperature circuit for leaks. | AR09.41-P-1011XGA |
BOTTOM ENGINE COVERING
| Number | Designation | Model 463 From Model Year 2019 | ||
|---|---|---|---|---|
| BA61.20-P-1002-01A | Screw fastening rail of engine compartment paneling below (front) to frame | M8 | Nm | 20 |
MIXING RATIO COOLANT
| Number | Designation | All Engines, Engine 178 in Model 190.381 | |||
|---|---|---|---|---|---|
| BF20.00-P-1001-04A | Mixing ratio coolant | Antifreeze / water | to -25°C | % | - |
| to -37°C | % | 50/50 | |||
| from -38°C | % | 55/45 | |||
| Sheet overview and regulations | BB00.40-P-0310-01A | ||||
| References to the regulation sheet | BB00.40-P-0310ZZ | ||||
COOLING SYSTEM
| Number | Designation | Engine 176 in Model 463 From Model Year 2019 | |||
|---|---|---|---|---|---|
| BF20.00-P-1001-06A | Cooling system | Workshop change quantity | Main circuit | Liter | ≈13 |
| NT cycle | Liter | ≈4, 6 | |||
| Antifreeze / water | to -37°C | % | 50/50 | ||
| from -38°C | % | 55/45 | |||
| Operating material regulations sheet | BB00.40-P-0310-01A | ||||
| Operating material regulations sheet | BB00.40-P-0325-06A | ||||
| Operating material regulations sheet | BB00.40-P-0326-06A | ||||