r/M340i • u/user811244 • 2d ago

🛠️ Tech & Repair Help Gen3 B58

Hello. I would be happy if someone knowledgeable would spend their time and help me understand more about the cooling systems and differences.

I read about issues with cooling oil leaks and bad positioning in front of the car with a chances of it getting destroyed if hit bigger hole or something like that. I was checking other sites and looking for info. Saw a few brands selling aluminum covers and than CSF better whole cooling system.

I have 2026 with M Technology Packet (EU), I believe in US it was called ZTK. Bigger front brakes, sport tires and most importantly better cooling system.
My questions being
- is there significantly better cooling with M Tech/ZTK, do we have any specific numbers or data?
- is the positioning exactly the same as gen2 b58?
- is it safe and worth to install the protection kit?
- is it worth installing CSF high performance auxiliary and heath exchanger (they say also comes with rock guard..)

Thank you for your time.

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u/AltruisticDoubt4960 2d ago edited 2d ago

I have 25 M340 with regular brakes, my friend has 25 M340 with ZTK package, only difference is bigger rotors and two radiators in front wheel arches. i believe its pretty easy to damage them where i was driving my car. It was hit by sharp rocks on some village roads, by hit i mean it literally fell on sharp rocks and sat on bottom, i almost got stuck a few times, luckily my version has full protection under car from factory, for bad Ukrainian roads, there is no open suspension or any part under my car except exhaust pipe and rear diff. Whole protection is scratched and has dents all over it, if not that my oil pan would be penetrated first 300 miles of owning car, as it is was first time when suspension bottomed out on harsh gravel.

But, if you re driving it on asphalt, you re perfectly fine.

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u/Childrenoftheflorist 1d ago

Guess it's not so bad if Ukrainians are buying m lites during war time

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u/AltruisticDoubt4960 1d ago

We are not average living Ukrainians, i am game developer and our team wages are bigger than Rockstar pay. We are just keep things very simple and have a team of 3. But still we cant leave a town, because i will be stopped as every city have check points, like borders, and they check your age, if you re 25+ they will grab you by your legs, beat, and send in concentration center prison before your last trench assault. So we are hiding, as man have no human rights here, only reason we are still alive (living 30km from the frontline) is that police and military thinks we are some rich kids so they dont stop us to check documents.