But during the ownership i found it really reliable, the only things i needed fixing were: battery (it was the original one over 7 years old), tyres and brake discs/pads (consumables on any car) and the regular oil/filter services.
Mods:
* Endless ME-20 track pads
I like this stuff. Used it on a new to me 100k mile BMW with the N52 engine. It had the notorious lifter tick at start up and randomly when warm. Used the engine flush on 3 consecutive 2500 mile oil changes. Cured the lifter tick.
Family member has a f30 with b8s and I've had countless cars on stiff coilovers. I ended up doing koni orange (str.t) and Hr springs. Feels like a click above fresh factory suspension. Tight and responsive but never jarring. Iirc koni yellows on a lower setting can achieve the same feeling.
I have the entry level E46 Ground Control setup that includes Koni shocks. It's a vastly superior ride to the bilstein PSS kit I had before this but the kit is not perfect
I used oem bmw coolant and a mahle thermostat.
Configuring new car I would definitelly go for ccbs. The braking power is massive. But if driving in cold weather, snow or cold rain and not touching the brake for couple of minutes on highway and the first braking after that is basically no braking.
If used incorrectly on the track you can fuck them up. Dont ask how I learned that. Swapping them to steelies now. Car is at 130k kms. The weight of ccbs is good but they starting peeling probably due to overheating them with too much worn brake pads.
Buy the M340i new and prepay your services. Great on gas but insurances and tires have been expensive. Water pump blew at 48k.
They are costly to maintain like the air suspension.
By the results of their other tires, they seem pretty bad from my experience they are a tier above bottom of the barrel chinese tires
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