This exhaust fluid is refilled by your service center during regular maintenance. If you adhere to this maintenance schedule, it is usually not necessary to refill any fluids between the maintenance dates.

Under certain circumstances, for example, due to a particularly sporty driving style or operation of the vehicle at high altitudes, it may be necessary to refill fluids between maintenance dates.

As soon as the reserve display has appeared in the instrument panel, have the diesel exhaust fluid refilled to prevent the engine from being unable to restart.

You can have the fluid refilled by a service center.

Diesel exhaust fluid at low temperatures

Due to its physical properties, it may be necessary to replenish the level of diesel exhaust fluid at temperatures below +23 ℉/ -5 ℃, even between the regular maintenance dates.

If the fluid needs to be refilled, this will be indicated with the reserve display in the instrument cluster