Claas Celtis
Coolant capacity & service interval
Claas Celtis coolant capacity ranges from 15 to 18,5 liters. Service intervals include checking every 10 hours and changing every 2000 hours. The data covers 4 configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
|---|---|
| Celtis 426 (M3612DB/3612DA/3611DB) (2003-2008) |
|
| Celtis 436 (M3622DB/3622DA/3621DB) (2003-2008) |
|
| Celtis 446 (M3632DB/3632DA/3631DB) (2003-2008) |
|
| Celtis 456 (M3642DB/3642DA) (2003-2008) |
|
Additional Notes
- The Claas Celtis 426, 436, and 446 variants share an identical cooling system capacity of 15 liters, indicating a common engine cooling architecture across those three configurations for the 2003-2008 production period.
- The Celtis 456 carries a notably larger cooling system capacity of 18.5 liters, which reflects a greater engine displacement or thermal load requirement compared to the lower-numbered variants in the same range.
- A coolant level check interval of 10 hours applies across all four Celtis variants under normal use conditions, placing coolant monitoring among the most frequent routine service tasks on the machine.
- The coolant change interval is set at 2000 hours for all four variants under normal use conditions, a figure that represents a substantial operational period and is typical of extended-life coolant formulations used in agricultural machinery.
- The 3.5-liter difference in cooling system capacity between the 456 and the 426/436/446 group is relevant when calculating the volume of coolant concentrate and water needed to achieve the correct antifreeze mixture ratio during a full system drain and refill.
- All four Celtis variants share the same 2000-hour change interval despite the capacity difference between the 456 and the rest of the group, meaning the larger-capacity system requires a proportionally greater volume of coolant at each scheduled change.