BMW X3 Owners Manual: The concept

BMW Advanced Diesel reduces nitrogen oxides in the diesel emissions by injecting diesel exhaust fluid reducing agent into the exhaust system. A chemical reaction takes place inside the catalytic converter that minimizes nitrogen oxides.

The vehicle has a tank that can be refilled.

To be able to start the engine as usual, there must be an adequate reducing agent.

Reducing agent is added by the service center.

Warming up the system In order to warm the engine up to its operating temperature after a cold start, the Steptronic transmission may subsequently shift up to the next higher gear.