brand new C400X - stalls

Donnus

Member
Well now we know that our scooter was designed with an imperfect engine. We know that all the faults are real and not perceived !
BMW just released the new 2021 model with major mechanical modifications! Basically admitting all the defects !
new throttle new throttle body, air box, sensor on alternator, engine management to mention a few 🤷🏼‍♂️🙈
 

goings51

New member
My C400 started stalling sometimes as it shifted into neutral as I came to a stop. I thought it might be fuel related even though I was filling up most times at the same well known gas station. I did some Google searches and determined that Chevron is the best gas out there so I switched and the problem resolved within 2 to 3 tanks. I also use Exxon now with good results.
 

Donnus

Member
Eventually the stalling problem was resolved with a software update. Problem well known to BMW. We in Italy don’t have chevron ir exon. Its a idle engine design which was faulty and was mitigated with a software update.
The new engine has a different idling system, based on a turbulent bypass and not an air valve. In fact bmw eventually swopped my model with a new eu5 model. Miles better 👌
 

Avonord

New member
Guys, is the issue fix? I’m looking at a used 2019 C400X. How do I know if the scooter has all the required fixes?
 

Avonord

New member
My C400 started stalling sometimes as it shifted into neutral as I came to a stop. I thought it might be fuel related even though I was filling up most times at the same well known gas station. I did some Google searches and determined that Chevron is the best gas out there so I switched and the problem resolved within 2 to 3 tanks. I also use Exxon now with good results.
Can you confirm that the software fix is still working? May I know the software version that had the fix?
 

hannesd

New member
Can you confirm that the software fix is still working? May I know the software version that had the fix?
apparently this issue got solved with a serious software update, i cannot confirm myself since i don't have the latest update 022_008_020
did you buy the C400,
 
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