The N54 is reliable, just stay on top of maintenance and pro-actively replace all the plastic parts known to fail in the engine with aluminum aftermarket parts. Ditto, upon purchase, do all the maintenance tasks right away, so you’ll know they were done (valve cover gasket, oil filter and cooler gaskets, new spark plugs, expansion tank, check ...

Apr 9, 2007 · N54 turbo tuning topics, including tuning of the 335i engine, drivetrain, downpipes and exhaust. For the N54 335i / 335xi N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i - E90Post - BMW 3-Series (E90 E92) Forum

Nov 16, 2022 · Had 2 cars with the n54. It could be the coolant pipe on top of the engine. It's a common problem with that engine. So common it should have been a recall. The parts like $80 but the labor cost the dealer quoted me was $9k because they have to …

May 19, 2022 · The key to N54s and any BMW performance engine is enough cooling and I can’t stress this enough the correct engine oil. Not just a good brand but the correct weight. Choosing this comes down to a lot of factors, the main one to start with is the climate you’re in.

Aug 18, 2012 · BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Official N54 1/4 Mile Times Compilation Google Search

Apr 23, 2018 · BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > DIY: N54 Injector Coding Via INPA Google Search

Jul 9, 2012 · Bah, the N54 is the wave of the future. The S54 is nice and all, but it's heavier, has just as expensive moving parts that are S54-specific (i.e. not cheap), and doesn't make the same torque/liter as a stock N54. The water pump for an S54 is just as expensive as an N54, too.

May 13, 2015 · BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > N54 Public XDF Repository Google Search Search Forums

Aug 29, 2015 · BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > Australia > The Ultimate N54 Maintenance List Google Search Search Forums

Oct 22, 2012 · I am using Motul 300V Power 5W40 in my n54 335i, F10 M5 and in my wife F20 116i (which will be tuned soon up to 200HP). I am using Motul LL04 SPEC oil 5W30, 5W40 in my F30 320d. When using Motul 300V Power oils, more frequent oil change is …