Heated oxygen sensors

The heated oxygen sensors monitor the oxygen content of the exhaust gases. Readings are fed into a control module that continuously monitors engine functions and controls fuel injection. The ratio of fuel to air into the engine is continuously adjusted for efficient combustion to help reduce harmful emissions.
See also:
Battery
• Ensure that the battery cables are correctly
connected and tightened.
• Never disconnect the battery when the
engine is running (e.g., when replacing the
battery).
• Never use a fast charger to ...
Engine Drag Control (EDC)
EDC helps keep the engine running if the
wheels show a tendency to lock, e.g., when
shifting down in the Geartronic manual shifting
mode or while using the engine's braking function
on a slipp ...
Refueling
The fuel tank is designed to accommodate
possible expansion of the fuel in hot weather.
See page 284 for fuel tank volume. Be aware
that the "usable" tank capacity will be somewhat
les ...
