2023年11月12日 · BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > N55: Full Technical Training PDF Google Search

2015年8月29日 · Bmw tech perspective here. The N55 is a better more reliable engine than the N54 was. Actually issues with the n55 are fairly few. On occasion I have had to do the valvetronic motor, thermostat, and boost control solenoid. Cracked vacuum lines can …

2021年1月19日 · Update to my original post, I ended up getting it diagnosed and the actuator and essentric shaft were apparently bad with the bmw test plan they ran, and they decided to price match FCP EURO on parts which brought it down nicely, and found my FRM went bad as well so bmw is gonna replace the FRM, the actuator and seal, essentric shaft, sensor, oil squirter,, valve cover gaskets, spark plug ...

2022年5月20日 · Mechanically the n55 is great but the electrical is a massive pain. If you see a flood, drive the other way or park high and Uber. $50 Uber is better than a $900 parking break module. I got lucky and bought one off eBay for $30 and asked for a software update which fixed it but if you get aftermarket modules, you need software and knowledge to ...

2021年7月12日 · F30 n55 issues are minimalized to basically just the ofhg. Also the EWG n55's make better power and have superior boost control as opposed to the pwg ones, aka 2013 n55's and prior. You'll find it way easier to make power. And on a semi related note, early f30's still use the CIC from the e9x era, as opposed to NBT or NBT Evo later on.

2020年11月17日 · You can get to 400+ pretty easy and cheap on an n55, that's where I'm sitting. Stock turbo, FBO, and tune. I spent extra on sport cat downpipe because I live where we have to do emissions testing and didn't want to deal with the hassle. But getting to 500+ is where it gets expensive. If you're thinking about n55 and F3x, make sure you get EWG ...

2024年2月23日 · BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > N55 Tuning Software Google Search Search Forums

2018年12月20日 · BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > N55 Diverter Valve Google Search Search Forums

2022年12月30日 · As a BMW mechanic for BMW I can confirm this is 💩 The N55 is the engine that breaks and bottoms out the most out of the 3 that OP has mentioned. It's also required way more work to bring out the high end power. N44 easily beats it in every way on a Manuel for quick power and reliability.

2012年12月12日 · note: JB+ with upgraded BMW N55 software nulls gains on the tune, read the link. Waiting on upgraded JB+ to work with new bmw software update. JB+ discontinued - JB Stage 2 in the works with CAN features ; BMW Performance Power Kit - available note: special incentive from bmw for upgrade / under 600$ for kit without install