Irisbus Arway
Coolant capacity & service interval
Irisbus Arway coolant capacity ranges from 46 to 98 liters. Service intervals include checks every 12 months and changes every 24 months. The data covers 1 configuration.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
|---|---|
| Arway 10-13m Euro 4 (2005-2013) |
|
Additional Notes
- The Irisbus Arway 10-13m Euro 4 cooling system carries a notably wide capacity range of 46 to 98 liters, which reflects the variation between the shorter 10-meter and longer 13-meter body configurations rather than a single fixed fill volume.
- A 46-liter figure at the lower end of the range represents a substantial coolant volume even for the smallest configuration, consistent with the large-displacement diesel engines typical of Euro 4 coach applications.
- The upper capacity of 98 liters places the longest Arway configuration among high-volume cooling systems, a level associated with full overhaul or complete drain-and-refill procedures rather than a routine top-up.
- Under normal use conditions, the cooling system is subject to a 12-month inspection interval, meaning the coolant level and condition are assessed on an annual basis.
- The change interval for the same normal use condition is set at 24 months, establishing a two-year full replacement cycle for the coolant across the 2005-2013 production span of the Euro 4 variant.