The BMW N54 is a twin-turbocharged straight-six petrol engine that was produced from 2006 to 2016. It is BMW’s first mass-produced turbocharged petrol engine and BMW’s first turbocharged petrol engine since the limited-production BMW M106 was discontinued in 1986.
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What cars have the N54 twin-turbo?
- 2006-2010 BMW E90/E91/E92/E93 335i.
- 2007-2010 BMW E60/E61 535i.
- 2007-2010 BMW E82/E88 135i.
- 2007-2010 Alpina B3.
- 2008-2010 BMW E71 X6 xDrive35i.
- 2008-2012 BMW F01 740i.
- 2009-2016 BMW E89 Z4 sDrive35i.
- 2010-2013 BMW E92/E93 335is.
Is N54 twin-turbo reliable?
The N54 is cheap and fast, but not reliable. 2JZ engines are fast and reliable, but they aren’t cheap to buy upfront. That said, the N54 earns its bad reliability reputation from all of the crappy parts around the engine. The N54 itself is a very strong engine that can often last beyond 200,000 miles.
Is 2009 335i N54 or N55?
The N54 began production in 2006 and first appeared in the 2007 BMW 335i; in 2008, the N54 was introduced along with the 135i and 535i. BMW’s N55 engine began production in 2009 and started replacing the N54 in 2010.
What is so special about N54?
The biggest advantage of the BMW N54 is its power and potential. Sure, the twin-turbocharged petrol engine provides enough power as it is. Still, what truly makes it special is the ability to boost the output even more with a couple of aftermarket upgrades.
Is the BMW 3.0 twin-turbo a good engine?
Interestingly, the N54 received multiple awards over the years. It won five straight awards for the International Engine of the year and three straight awards for Ward’s 10 Best Engines. Unfortunately, there is no BMW M model of the N54, but a high-output model of the N54 was used in the 1 Series M Coupe.
How much HP does a N54 have?
BMW N54 Engine Specs A forged crank and rods deliver solid strength. Combine that with DOHC and variable valve timing and the N54 is good for 7,000 RPM redline. It also makes 300-335 horsepower from the factory.
What are the problems with the N54 engine?
These are the most common N54 engine problems: High-Pressure Fuel Pump (HPFP) Failure. Turbocharger Failure / Wastegate Rattle. Leaky Fuel Injectors.
Is BMW N54 engine reliable?
But the long-term reliability of those early turbo BMWs has been poor. The common issues are aplenty. There is an oil leak that causes belts to slip, which causes the front main seal to fail, which clogs the oil pickup with rubber, thereby starving the engine of oil and blowing the engine.
How long do stock N54 turbos last?
Turbochargers on the BMW N54, for the most part, last around 100,000 miles before they have to be rebuilt or replaced. It isn’t uncommon to hear of cars that have the original turbos still functioning as designed upward of 200,000 miles.
How long does 335i engine last?
The BMW 3 Series can last between 200,000 – 250,000 miles when properly maintained and driven conservatively. If you drive 15,000 miles per year it will last approximately 13 – 17 years before requiring expensive and uneconomical repairs.
Which 335i has twin turbo?
Two primary engines powered the 335i – the N54 and N55. Both engines are 3.0L inline-6 turbocharged engines. However, the older N54 engine utilizes twin turbos while the N55 is a twin-scroll single turbo. Despite the differences in turbos most BMW 335i models pump out the same 300 horsepower and 300 lb-ft of torque.
Does N54 or N55 sound better?
The N55 definitely sounds better for sure. It’s louder and has a more V8ish tone than the N54 – at least inside the cabin. However, the N54 doesn’t sound bad at all.
What year did 335i get N55?
Model year 2011 335i’s moved on from the twin turbo N54 engine to the single turbo N55. The N55 moved from piezo injectors to solenoid style injectors. This was a huge reliability upgrade over the problematic piezo injectors on the N54. However, the N55 uses the same fuel pump as the N54.
What 335i has the N54?
Here’s what you can buy in the United States if you’re trying to get into an N54-powered BMW: 2007-2010 335i. 2007-2010 535i. 2008-2010 135i.
What should I replace on my N54?
- Spark Plugs and Ignition Coils. Spark plugs generally last 30,000+ miles.
- Fuel Injectors.
- Oil Change.
- Leaking Valve Cover and/or Gasket.
- Cooling System (Water Pump, Radiator, etc)
- Intake Valve Walnut Blasting.
Is N54 forged?
The N54 rods are just made thicker and with larger rod bolts than the N52, they are made with the exact same process (powder forged, cracked cap). Even an M10 4 cylinder engine from the 1960s would have forged rods..
What is the difference between BMW N54 and N55?
The main difference between N54 and N55 is the type of turbocharger used in each engine. Its N54 engine uses twin turbos, while the N55 uses a single turbo with a twin-scroll exhaust. A twin-scroll turbocharger is a standard turbocharger but splits its exhaust housing into two.
How much HP does a twin turbo BMW have?
2.0-Liter, TwinPower Turbo Inline 4-Cylinder Engine, 240 hp Lightweight and smooth-running, it incorporates BMW’s award-winning High Precision Direct Injection, Valvetronic and double-VANOS technologies. Its dynamic performance is equaled by spectacular fuel efficiency, taking you further on every gallon of gas.
What is a BMW N54 engine?
Found in numerous BMWs for over a decade, the N54 has become one of the most popular engines that BMW has ever produced. The N54 is a twin-turbocharged, direct injection engine, and from the factory, it made 300HP/300TQ at only 8PSI. With a simple ECU flash/tune, you can make around 380HP and around 400lb-ft of torque.
Is the N54 in the 535i?
The BMW N54 engine featured in the 135i, 335i, and 535i is one of the most tune-able engines ever. Some people call it the ‘2JZ’ of German engines, but we think the N54 is on a whole new level.
How much boost can N54 handle?
Likewise, newer OEM turbos may decide to give out before 20psi. However, if you are concerned about N54 turbo longevity, somewhere in the ballpark of 17-18psi on stock inlets/outlets and 19-20psi on upgraded should be safe for most.
How fast can you make a 335i?
The 335i sedan was sold between 2007 and 2013. It comes with an inline six-cylinder turbo powerplant with 2,979cc displacement, which offers 298 hp at 5,800 rpm and 295 lb-ft of torque at 1,200 to 5,000 rpm. It has a top speed of 155 mph, and its 0-60 mph acceleration stands at about 5.4 seconds.
Why do N54 turbos fail?
The vast majority of turbo failures are caused by oil starvation or oil contamination. The N54 turbos are supplied with engine oil and coolant to keep their high temperatures in check (Figure 1).
What year 335i is most reliable?
Reliable BMW 335i Model Years Here’s a quick list of the most reliable BMW 335i years: 2010. 2012. 2015.