SOLD AND RETURNED As Defective BMW N54 Twin Turbo, Is It Actually Bad? Let's Tear It Down And See!
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- Опубликовано: 13 май 2022
- Email all part requests to Importapartsales@gmail.com. If you need an N54 engine, Index 12 injectors or other N54 parts shoot me an email!
This week's teardown is a BMW N54 Twin Turbo 3.0L Inline 6. This engine is found in 2007-2010 BMW 335i, 2008-2010 BMW 535i, 2011-2013 BMW 335is, 2009-2010 BMW 135i and 2009+ BMW Z4.
This particular engine was sold and returned after SEVEN months as defective. The claim was coolant loss and smoke out of the tailpipe. Today, I tear this engine down and figure out if it was actually burning coolant or perhaps this engine had two problems, a coolant leak and the smoke may have been fuel or oil. The second to last thing I want to do is tear down a good engine, but the very last thing I want to do is sell an engine as good when someone claims it isn't, which is why this engine was torn down.
My name is Eric and I own and run a full service auto salvage business called Importapart located in the Saint Louis MO area. Part of our model is dismantling and selling parts from rare and niche market engines. I don't build or rebuild engines, we simply supply hard parts to those that do!
Want to see a particular engine torn down? I may have already done one! No really, check out my other videos for the engine you'd like to see! I've made over 70 other teardowns from a Cummins to an LS7, and from Rotary to Ram Ecodiesels. You can expect a new teardown every week!
Check them out here • Blown Up Engine Tear D...
As always I appreciate all of the comments, feedback and even the criticism.
What will I tear apart next week? Just wait and see!
-Eric
95 percent of all BMW's ever made are still on the road. 5 percent made it all the way home.
Something your channel has taught me: Even if I could afford a BMW, there's no way in hell I'm buying one.
I like how it’s just you and your tools tearing down engines for other peoples enjoyment and the occasional sellable part. There’s no bs patreon page for early videos, just a dude that enjoys what he does and let’s come along for the ride.
BMW is the Amber Herd of cars. Looks good and when its working an amazing experience. But when it goes bad, that BMW will sh!t the bed and abuse you financially and emotionally!
The way you described how good and bad this engine is. It sounds like a toxic relationship that is just too good to leave
I worked on a 06 BMW 535i with the n54, it was a high mileage car (200k+miles) that had oil leaks FOREVER, it had that NASTY black oily gritty buildup ALL OVER IT. The customer ONLY fixed the oil leaks after the SECOND time of it completely destroying the belt and wrapping the shredded belt around the crank pulley and it wrapped it so tightly behind the crank pulley that it shoved through the crankshaft seal and the engine ACTUALLY had belt fragments wrapped all the way around the timing chain ON THE INSIDE OF THE ENGINE! The oil pickup was completely stopped up as well. Somehow it did not jump timing and I were able to clean the oil system up and get all the fragments out of the timing chain and clean the screens for the vanos system and the engine ACTUALLY ran and functioned just fine, WHICH IS A MIRACLE! LOL
I had a 535i with that engine, worst mistake I ever made. It never met a mechanics shop it didn't like. At 97k the oil pump failed and seized the engine, best thing that happened to that engine.
Thank you for saving me so much money, Eric, by convincing me never to buy any vehicle with a BMW engine! Peace.
All I hear through the whole video is "This is a common failure point for this era of BMW's"
You only chose this engine so you didn’t have to fight the dipstick.
The best advice I ever got about BMW's was.
That plug on the oil pan is for the CCV system on the earlier models that had an external setup like on the original N52, it’s the oil return. I’m assuming they used the same oil pan from the N52.
It's always great when someone in the salvage business is honest. If there's a doubt you don't sell it as good. Nice there are people with a conscience in the business. I can't tell you how many times I've Been interested in buying used parts advertised as good and when you see it, it's much different.
I always look forward to the weekly engine teardown videos, no fancy video and patreon content, just good old fashion tools and engine talk! Thank you!
Had this exact crazy-girlfriend of an engine in my 2010 535ix 6-speed. When it was good it was really good and when it was bad, well, it was truly awful, leaving me stranded on 3 separate occasions. I was the second owner and made sure it was serviced regularly. Despite that, in the 70k miles I owned it, walnut blasting of the intake valves was needed 3 times to remove the accumulated goo from having direct injection, the injectors themselves failed, both turbos had to be replaced, the water pump failed, the high pressure fuel pump was replaced under recall, spark plugs replaced well before their maintenance interval, plastic valve cover replaced due to cracking, oil filter housing gasket replaced due to a leak and the serpentine belt ate itself. I persuaded BMW to pay for a lot of this, but it was the most expensive car to run that I've ever owned. The final straw was the front differential exploding and taking the oil pan with it. Sold it for near scrap value to my local BMW service tech - maybe that was his secret plan all along?
I love how you describe your love/hate relationship with the N54 engine. I have a 2012 Honda Accord with a 4 cyl, and my mechanic says that as long as I keep up with my oil maintenance it won't need to come out of the car until around 450,000 miles.
BMW's, like Merc's used to be ultra reliable.
My N54 on my 07 335i has treated me good even with ~590whp on upgraded turbos @28psi. I have driven it about 50000 miles since I bought it and have had one hpfp going bad (don't know how long the previous owner drove with it) and I also had to replace the injector seals. Other than that I replaced the oil pan gasket, valve cover gasket and oil filter housing gasket for peace of mind. I do all work myself so it really hasn't cost me much and its a blast to drive! 😁
Eric, I recently did my first (engine out of course) service on my N54, I have nothing but respect for you and your ability to disassemble some of the hardest engines in the most entertaining fashion. thanks for making such great content, keep it up!
Man, I used to rebuild my engines when I was younger (circa '72 Datsun Z's and early SBF) and thanks to your vids, I see how far tech has come. Engines are soso much more different now.