Reviews of OEM BMW parts For Business

From personal experience I have always changed oil every 3500-5k miles depending on how I drove. I used to do 6500-7500k and I noticed on my 540i last winter on days when it got below 20 degrees the engine was very noisy during the first 5-10 mins driving. It was so noisy I was convinced it was piston slap or something. It wasn't a low oil "thunking" sound though. Always kept it under 3k rpms and was very gentle on those cold mornings. This was when my oil had 4-5k+ miles on it and it was last changed in Sept 2024 and this was Jan 2025 back then. So I scheduled an oil change worried my oil was low or something and the noise went away. Oil quantity came out normal no burn or leak! After that I reduced my intervals to 5k max and I also always changed the oil before winter/summer (mid-late Oct and early-mid April) ever since following this personal guideline of mine I have never experienced that cold rough engine sound in the winter anymore. Also two examples of manufacturer oil recommendation being shite is the B58 states 0w-20 but the manual says 0w-30 is acceptable. I also noticed that switching to 0w30 the engine sounded/felt smoother especially on cold idle. Second example is N63tu2 BMW used to recommend 5w-30 but then they dropped it down to 0w-30. Many cases of those motors particularly found in 2018 M550i's etc were consuming 1qt every 3k-4k+ miles yikes! But once switching back to the original 5w-30 recommendation all consumption ceased.

I’m up to 150k miles on my B58. Oil changes every 10k miles from new. Still running smoothly, not burning any oil, pretty sure it’ll go another 50k miles at least. Personally, through 5 BMWs, I’ve always just stuck with the factory recommendation and never had the slightest issue. It’s always been the rest of the car which has gone before the engine.

May 2025: Oil service, new tires, front brake rotors & pads

I run 0W20 that is approved by BMW and have 255K KMS. No issues at all.

I did absolutely nothing apart of spark plugs and oil change . I had E90, 188k km, 330d until it meet it's end when I crash it to railguards. it never showed me any lights or anything so I would say around 60-80$ tops.

I’ve got an F30 340i with a 6spd. It’s pretty fun I can’t lie. The shift throw is pretty short, previous owner said it was a stock setup but I haven’t verified. Sometimes, it’s a little tough to slip it into gear, a little toooo notchy.

I did my spark plugs on my 335i f30 and I can say one thing. $400 for labor on spark plugs is treason. Shit should take those "experienced" mechanics maybe an hour.

I\u2019m a BMW Master Tech. The N52 is not reliable. Myth spread around the internet. It\u2019s just more reliable than the engines BMW released around 2006. I do thank all of you N52 owners for all the money. So easy to work on and they leak oil every 50k from either the valve cover, ofhg, and/or oil pain.

They say a GLOW PLUG TIP broke off and scored the cylinder wall.

To top it all off, the turbochargers are absolute garbage. Lag until 4,000rpm. Car has been an absolute lemon.