Driving and parking
Starting the engine
In this manual: Driving and parking
~2min read
Important safety notes
WARNINGNever run the engine in an enclosed space. Exhaust gases contain carbon monoxide, which is a toxic gas. Inhaling exhaust gases is dangerous to your health. It can cause loss of consciousness or even death.
Do not press the accelerator pedal while the engine is starting.
Gasoline engine vehicles: during a cold start, the engine runs at a relatively high speed so that the catalytic converter reaches its operating temperature more quickly. The engine noise may change during this time.Manual transmission
- Press and hold the brake pedal.
- Fully depress the clutch pedal.
- Shift the transmission into neutral (N).
Automatic transmission
- Shift the transmission to P.
The transmission indicator in the multifunction display shows P.
You can also start the engine when the transmission is in N and the brake pedal is depressed.Starting procedure
- Starting a gasoline engine: turn the key to position 3 in the ignition switch, then release it as soon as the engine runs.
- Starting a diesel engine: turn the key to position 2 in the ignition switch.
The glow plug indicator
located in the
instrument cluster lights up.
- When the glow plug indicator
goes out, turn the key to position
3 in the ignition switch, then release it as soon as the engine runs.
When the engine is warm, you can start it without preheating.
Vehicles with automatic transmission: you can also use the instant start function. To do this, turn the key to position 3 in the ignition switch and release it immediately. The engine then starts automatically.Test yourself
A quick Mercedes-Benz B-Class quiz: every answer comes with an explanation and a link to the manual page.
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