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Gen 1 and Gen 2 are arguably both at the same level for tuning...

It's possible that's true, at least from some perspectives.

Yes, they do.

No data will be lost with this method.

Thank you for your compliment and questions: 1. Wow, what a technical question, and to be honest I don't know. It would make sense for the starter generator to be brushless to give it a longer life, emit less noise, have higher efficiency etc. But you are saying it sounds brushed which might mean BMW went for lower cost option? 2. I believe you are correct that it is alot of force for the belt, and it's likely why the first start of the day is with the conventional 12V starter. The starter generator either keeps the crank in motion when coasting, or starts the engine when everything is already warm and lubricated with oil (i.e. least resistance), so that the 48V system is under the lowest possible mechanical strain. The belt is a different P/N and as you say must be a more robust design due to the aforementioned strain it is subjected to when starting the engine.

In stock form, the 6-port B58TU1 with 382hp (if it also has 48V mild-hybrid assist, which some B58TU1 cars have) is arguably a better performance engine than the 1st gen B58 with 340hp. The 1st gen is simpler and arguably more over-engineered and likely to be more reliable, especially after modifications, than the 2nd gen. Both generations are exceptionally good engines with alot of upgrade potential and it's likely you will be happy with either. It all depends on budget and plans. Of course when buying used you also need the previous owner(s) to have taken care of the engines. Hope this helps...

@NoBrainerTalk Yes thank you. I'm not upgrading anything so I will go with a Gen 1. Yeah The 2019 X3 M40i is alittle cheaper then a 2020 model year. Yup I'm always looking at the car fax to see the oil change intervals. Thanks for your help 👍 👊

Strange, sorry I can't help. Good luck!

Why don't you try it and tell us? :) Nothing is deleted with this method, there is no harm to try it. DON'T TRY IT if your volume down button is also broken, as then you will not have a way to turn on the phone.

No, with this method nothing is deleted.

I guess it's easier to route existing coolant lines in the engine bay to new components, rather than add radiators or heatsinks or other heat dissipation techniques.

Hi, as I understand it, this system only assists the engine in the lower power bands and does not add more peak power. So the peak torque and hp remain unaffected. A dyno run of B58TU1 with and without mild hybrid system should however show different curves I believe.

@@NoBrainerTalk i feel like if i push the car from say 2000rpm in 2nd gear all the way up to redline that the eboost holds until it switches gear, third gear loses the eboost completely. It's a weird system. Thanks for your reply!

@@vandelannoitematthie Interesting. Thank you for sharing.

Unfortunately in that case there does not appear to be a solution other than physical repair.

Yes, this has been reported by various owners, and it seems to occur is colder weather environments. It has been reported in 1st Gen B58 and early production 2nd Gen B58 (i.e. B58TU1). Later production B58TU1 engines seem to have a different upgraded oil pump (which owners are reporting as having all metal internals).

Sorry to hear that, yes the broken volume down button was reported by others. Unfortunately noone has reported a method to start the phone when power and volume down button are both broken, so I believe physical repair is now needed.

@@NoBrainerTalk Yes. When all physical buttons are broken, repair is needed. Today I gave my phone to the repair shop. They said that the gaskets that are between the button on the case and the microswitch fell apart. The phone is 7 years old. I guess this is one of the planned obsolescence phases.

@@Tavda Thank you for sharing.

Sorry to hear that. It's possible the volume down button may be defective also, as reported by others.

As cool as some of these systems are, it just further complicates an electrical system that was complex already. Let’s hope that the German Engineering can make this BS last longer than the warranty period. 😂

Sorry to hear that, perhaps your volume down button is broken also?

100% B58B30B (i.e. B58B30O1), i.e. 382 hp 6-port variant of the B58TU1

@@NoBrainerTalk i have 374 hp its a b58 b also?

@@philippritter4715 Yes.

The system is considered just as safe if not safer than the 12V system, but care should always be taken when working with electrical systems.

As you can see in the description: B58B30O1 (technical manual) = B58B30B (engraved on engine) = B58D (IPC e.g RealOEM)

@@NoBrainerTalkthanks for clarifying

1st gen.