Everything you NEED to Know Before Buying a N54!

The N54 engine is surrounded by a massive love and hate relationship. From the high horsepower that it can withstand, to the many reliability issues that come up for owners. This platform has a lot to talk about. To both help you guys and answer many of the common N54 questions that we receive daily, the techs here at Precision Sport Industries helped compile this list of many of the commons things you need to look out for!

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[Ethxnn]

What about the high pressure fuel pump

[SnperGamerRX]

Valve cover gasket can be done in less than an hour. Oil filter housing gasket can be done in bout an hour and a half. Oil pan gasket 2 hour to 3 hour. Don't go to a shop that say they are going to spend 8 hours to do a 2 hour work

[afizever]

Mine is a 2009 335i, e93, downpipe VRSF, chargepipe vrsf, high pressure fuel pump from the 1M, tested on dyno with mhd stage 1, it's supposed to be 360hp & 520nm, dyno run 372hp & 530nm. Only 66.000 km, no problems, at all, oil change, every 5000 km

[wokekidd]

You should go over the 6/8bolt N54 and trans too

[Hanithingispossible]

2009 135i is the gem. U also need to own a couple gems to keep it alive

[abelucious]

My plan was to keep my manual transmission E60 535xi stock, turbo wastegate rattle caused me to upgrade my turbos, one thing led to another and I had to do everything he mentioned, I had to get intakes for the turbos, needed all 6 index 12 injectors (pricey), needed a walnut blast, valve cover and gasket, oil pan gasket, downpipes, full custom exhaust, charge pipe and BOV, and a custom tune, plus a bunch of more things, N54 upgrades can start at $300 and take you all the way up to $15000-$20000, be careful.

[brandond]

Any tips for maximizing turbo life on the n54? I have 40k miles on mine. All is good now, but I want to make it last as long as possible

[itsyourAGS]

4th liker and first fan of old BMW s 💕💓❤️💕💓❤️

[UnderThreatNation.]

I ask for your information on engine out job on my 650i.. no one ever replied

[jamescarrot]

I don’t understand why these cars are considered so unreliable. Everything mentioned here is accessory stuff. To make the same kind of power these engines can with just a tune I’d need to drop 10k to replace all the internals of my engine. Some occasional bad water pumps and seals don’t sound so bad

[SloppiGoose]

I'm not trying to be that guy. But it's very off putting with the "Job Times" you've described. Valve cover can be done in a little over an hour. OFHG might be 2 if it's your first time.

[umbertosannella]

just got 08 335i 128, 000km for 8900? fair or no? im 17 so lmk if i got spooked...

[Master_jjayy]

Forgot the rear main sail that shit leaks

[VETaLEK]

Dude so much misinformation in this video