2010–2013 E90/E91/E92/E93 335i.
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.
Does the 2009 BMW have the N54 engine?
Here’s the full list of the BMW’s and Alpina’s that featured the N54 engine: 2006-2010 BMW E90/E91/E92/E93 335i. 2007-2010 BMW E60/E61 535i. 2007-2010 BMW E82/E88 135i.
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.
Do I have an N55 or N54?
starting from March -2010 all cars were N55 drivetrains. Probably the best way to tell without looking under the hood… is IF it has a DCT it is an N55. IF its an auto it is an N54.
What years has the N54 engine?
The BMW N54 is a twin-turbocharged straight-six petrol engine that was produced from 2006 to 2016.
Is the N54 a good engine?
The N54 is a very highly regarded engine, for the most part. It’s received numerous International Engine of the Year awards and had thrice won the Ward’s 10 Best Engine Award. From an enthusiast standpoint, there are few engines today that can offer a similar return on the dollar in terms of modifications.
Are N54 engines reliable?
The N54 itself is a very strong engine that can often last beyond 200,000 miles. Of course, that’s if you’re willing to keep up with all of the maintenance and repairs for that long. Even when modding the N54 engine it still retains good longevity.
What’s the difference between 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 long can N54 last?
An N54 can still last well over 200,000 miles when cared for correctly. The N55 engine that replaced the N54 is more reliable, but is less tunable.
Why is the N54 engine so good?
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.
What is a N54 engine?
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. Since this motor shipped with forged internals, a few mods can reveal insane power.
What BMWs have the N55?
- 2009-2017: 535i.
- 2010-2013: 335i.
- 2010-2013: 135i.
- 2010-2017: X3 xDrive35i.
- 2011-2013: X5 xDrive 35i.
- 2011-2015: 335i.
- 2011-2014: X6 xDrive 35i.
- 2012-2015: X1 xDrive35i.
Is N55 a good engine?
N55 Reliability Despite the many misconceptions that BMW’s as a whole are unreliable, the BMW N55 is actually a fairly reliable engine. The four most common problems with the N55 are, in no specific order, the valve cover and gasket, water pump, oil filter housing gasket, and VANOS solenoids.
How much hp can N55 handle?
The N55 can handle around 550whp and 550wtq on the stock engine block and internals.
How long do N55 turbos last?
N55 Turbo Longevity at 20+ PSI In general, more boost will reduce the lifespan of the N55 stock turbo. However, it is possible for N55 turbos to last 50,000+ miles at 23psi, for example. On the other hand, the stock turbo may decide to let go much sooner even at 20psi.
How much HP can N54 handle?
The N54 can handle around 600-650whp and 550-600wtq on the stock block and internals.
When did BMW start using the N55?
The engine that replaced the N54, the more-efficient twin-scroll turbocharged N55, arrived in 2011, when it won the first of three consecutive Wards 10 Best Engines trophies. This has become the go-to 6-cyl.
Is B58 better than N55?
As you can see, from very early on the B58 has big gains over the N55 which it holds right through the rev range. As you can see, the B58 has a very similar boost curve, but makes around 4PSI more than the N55 across virtually the whole rev range.
Are N54 pistons forged?
Mahle Motorsports N54 pistons are forged for strength, light weight, and low drag to be a modest upgrade over the stock BMW pistons.
Are all 335i 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.
How can I make my N54 reliable?
Regular fluid changes. Downpipes Intake and intercooler will all make the turbos work a lot easier and more efficiently. A proper tune and besides that, you should be prepared to change spark plugs and coils if misfires occur. N54 is pretty reliable besides a few misfires on old hardware.
Why do N54 injectors fail?
The N54 injectors are notorious for having issues but the main problem that causes them to go bad is they will start to leak. But misfires arnt only caused by bad injector. Misfires are from lack of spark or fuel. So if you just had your injectors replaced i would check your plugs and coils first.
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.
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.