Since the N54 is based on the older BMW M54 engine, it has an aluminium engine block (instead of the magnesium alloy used by the N53), a displacement of 2,979 cc (181.8 cu in) and does not have valvetronic (variable valve lift).
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What BMW engines have Valvetronic?
A brief overview of Valvetronic technology The redesigned N52 inline six-cylinder engine, which was introduced during 2006, received the second-generation Valvetronic system, while the third, and current iteration of Valvetronic systems is in use on almost all BMW engines across the range of BMW vehicles.
Does the N52 have Valvetronic?
Compared with its M54 predecessor, the N52 features Valvetronic (variable valve lift), a lighter block due to the use of a magnesium alloy and an electric water pump (replacing the belt-driven water pump) and a variable output oil pump.
What is a Valvetronic engine?
Valvetronic is BMW’s latest answer to variable valve timing. Valvetronic engines use an extra set of rocker (intermediate) arms, positioned between the valve stem and the camshaft. These intermediate arms are able to pivot on a central point, by means of an extra, electronically actuated camshaft (eccentric shaft).
When did BMW start using Valvetronic?
First introduced by BMW on the 316ti compact in 2001, Valvetronic has since been added to many of BMW’s engines. The first application of this technology in a turbocharged engine was the N55 engine.
Can you drive without Valvetronic?
when the dme sees valvetronic not working right it disables it with the valves at maximum lift. the car continues to drive fine with disabled valvetronic.
Which is better N54 or N55?
N55 Reliability: Which Engine is More Reliable? This is always a touchy subject when it comes to discussions about the N54 and N55. Simply put, the N55 is more reliable. BMW’s N54 was the first mass production turbocharged gasoline engine produced by BMW in decades.
Is the B58 better than the N54?
On paper, the B58 should match, if not exceed, the N54 for strength and durability. Although, the single turbo will likely limit its capabilities without upgraded turbo(s).
Is the N54 the same as N55?
The main differences between the N55 and its N54 predecessor are the use of a single turbocharger, the addition of Valvetronic and the type of fuel injectors. Whilst the N54 used a twin-turbo arrangement, the newer N55 uses only a single twin scroll turbocharger.
Which is better N52 or N53?
N53 is an improvement of the N52 Naturally Aspirated (NA) engine mainly since it has gasoline direct injection technology and can burn stratified. N53 unlike its predecessor does not have Valvetronic due to space limitations in the cylinder head.
What is the difference between N52 and n52n?
Most significant differences are: New engine management, new HFM (digital), new throttle, plastic valve cover with integrated crank case vent valve and oil separation, stronger connection rods,exhaust valve stem increased, new electric water pump and lightweight camshafts.
How do I know if my engine is N52 or N53?
As per the N52, the N53 has double-VANOS (variable valve timing) and a magnesium alloy block. Unlike the N52, the N53 does not have Valvetronic (variable valve lift), due to space limitations in the cylinder head. The bore of 85 mm (3.35 in) and stroke of 88 mm (3.46 in) are the same as the N52.
What causes Valvetronic engine failure?
Typical causes could include poor electrical connections, a damaged or defective actuator motor, low system voltages, or a binding/sticking eccentric shaft. The presence of this code will typically cause the Valvetronic system to be deactivated, and in some cases, a limp mode to be initiated.
Can a Valvetronic engine cause a misfire?
For a warm engine, the threshold for misfires is by Lambda around 1.4 .. 1.5. So โ unless the wear of the Valvetronic is not so significant, that the air fulfillment of the cylinder is for 50 .. 60% less than optimal โ Valvetronic IS NOT the cause of misfire!
What are the symptoms of a bad Valvetronic?
Common symptoms that you will notice in this case include engine light is on, your BMW won’t start, runs rough, or an engine misfire.
How much does a Valvetronic Exhaust cost?
Stainless Steel Remus Valvetronic Exhaust, Size: 165 Mn at Rs 18000 in New Delhi.
What is BMW VANOS?
BMW’s VANOS stands for Variable Nockenwellen Steuerung. The VANOS is incorporated in the BMW M50 engines, where they focus on controlling the cam gear, which has a mechanical link to the exhaust gear by a chain.
Where is the Valvetronic on BMW?

How do I reset my BMW Valvetronic?
Insert the valvetronic motor and connect its 2 pin plug. Then switch the ignition onto position 2 and within a space of 15 seconds, depress the accelerator pedal down to full throttle 10 times and you will hear the valvetronic motor program itself back to factory spec.
What does BMW eccentric shaft do?
The eccentric shaft position sensor is used as a feedback for the Valvetronic eccentric camshaft. The eccentric shaft is actuated by the Valvetronic motor and in return controls variable intake valve lift. The eccentric shaft sensor is mounted to the cylinder head beneath the valve cover.
How does BMW eccentric shaft work?

How much HP can N55 handle?
The N55 can handle around 550whp and 550wtq on the stock engine block and internals.
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.
What is the most reliable BMW engine?
- BMW B58 Engine.
- BMW M20 Engine.
- BMW M50 Engine.
- BMW S62 Engine.
- BMW N52 Engine.
- BMW M54 Engine.
Is B58 twin turbo?
As per the N55, the B58 also features a single twin-scroll turbo, direct fuel injection, variable valve timing (called double Vanos by BMW), variable valve lift (called Valvetronic by BMW).