The engine is not started

I’m sorry to hear that you’re having trouble starting your Mercedes-Benz. According to Autotent, there are several reasons why your engine may not start. Here are some steps you can take to diagnose the problem:

1. Check the battery and charge it if necessary.
2. Examine fuses and relays.
3. Inspect the crankshaft position sensor.
4. Check the fuel system.
5. Check the starter motor and spark plug.
6. Verify that the battery is fully charged.
7. Check the gear selector/brake light switch.
8. Check engine fault codes.
9. Check the ignition system, spark plugs/coils.

If you are comfortable with DIY repairs, you can try following these steps to diagnose and fix the issue yourself. However, if you are not comfortable with DIY repairs or if you have any doubts about your ability to fix the issue yourself, it’s best to call a professional repair service.

Regarding the blinking lights on your rearview mirror, a fast blinking directional signal on a Mercedes indicates a bad bulb. However, I’m not sure if this is related to your engine issue.

I hope this helps!