Newbie question: how to properly turn off your S-Class
I had several w222 and now my second W223 and I always do it like this:
1. Come to fullstop by braking with the normal brake
2. Push the start/stop button while foot on brake.
That's it, car goes automatically in P and automatically activates the parking brake.
I would have never questioned this proccedur, if not in the manual of a Audi A8 2024, it is strongly adviced to do it like this, overwhise it would harm the transmission:
1. Come to fullstop by braking
2. Manually switch the parking brake, while foot on brake
3. Manually go into P
4. Turn off engine.
And also, I am getting lately a yellow parking brake warning signal saved in my electronic manual in the system settings. But not in my driving cluster???




I had several w222 and now my second W223 and I always do it like this:
1. Come to fullstop by braking with the normal brake
2. Push the start/stop button while foot on brake.
That's it, car goes automatically in P and automatically activates the parking brake.
I would have never questioned this proccedur, if not in the manual of a Audi A8 2024, it is strongly adviced to do it like this, overwhise it would harm the transmission:
1. Come to fullstop by braking
2. Manually switch the parking brake, while foot on brake
3. Manually go into P
4. Turn off engine.
And also, I am getting lately a yellow parking brake warning signal saved in my electronic manual in the system settings. But not in my driving cluster???
The method you described is an unorthodox method and MB identifies the electronic control safeguards they have installed to prevent hazards when someone improperly (shuts off/parks/gets out of the vehicle).
Below are a few images of the particular section on how to properly turn off your engine and park the vehicle:




For example... It is possible to shut off your engine while driving down the road. MB gives instructions on how to accomplish this task but also indicates you should NOT do this. MB then continues with the description of what will take place if you choose to shut down your engine while driving and the associated hazards.
I had several w222 and now my second W223 and I always do it like this:
1. Come to fullstop by braking with the normal brake
2. Push the start/stop button while foot on brake.
That's it, car goes automatically in P and automatically activates the parking brake.
I would have never questioned this proccedur, if not in the manual of a Audi A8 2024, it is strongly adviced to do it like this, overwhise it would harm the transmission:
1. Come to fullstop by braking
2. Manually switch the parking brake, while foot on brake
3. Manually go into P
4. Turn off engine.
And also, I am getting lately a yellow parking brake warning signal saved in my electronic manual in the system settings. But not in my driving cluster???




Safeguards...that is what Mercedes has incorporated into the design to prevent people from doing things that could be hazardous. For example, shutting off your car and getting out without putting the car in park or setting the parking brake would allow the car to roll away and cause damage/harm.
Want more evidence? Here is another screen shot of the W223 owners manual with the step-by-step procedure to shut off your car:







