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BMW N52B30K0 Engine

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BMW N52B30K0 Engine For Sale

  • Engine Size (liters) – 3
  • # of Cylinders and layout – I6
  • # of Valves – 24
  • Camshaft and Valve Timing – Valvetronic
  • HP Rating – 215
  • Torque Rating – 184
  • Active Years- 2006
  • Example Models – E90 325i
  • Features – also known as ‘low output’ N52KP

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BMW N52B30K0 Engine: Everything You Need to Know

If you are a BMW enthusiast or planning to buy a BMW car with a N52B30K0 engine, you might want to know more about this engine before making a decision. In this article, we will provide you with all the information you need to know about the BMW N52B30K0 engine, including its specs, features, and more.

Overview of the BMW N52B30K0 Engine

The BMW N52B30K0 engine is a 3.0-liter inline-six engine that was introduced in 2006. This engine is part of the N52 series, which was produced from 2004 to 2015. The N52B30K0 engine is also known as the "low output" N52KP, and it was designed to be more fuel-efficient than its predecessors while still providing good performance.

Engine Size and Layout

The BMW N52B30K0 engine has a displacement of 3.0 liters, which means that each of the six cylinders has a displacement of 0.5 liters. The engine has an inline-six layout, which means that the cylinders are arranged in a straight line. This layout is known for its smooth and balanced operation, which is one of the reasons why BMW has been using it for many years.

Number of Valves

The BMW N52B30K0 engine has 24 valves, which means that each cylinder has four valves - two intake valves and two exhaust valves. The valve configuration is known as DOHC (dual overhead camshaft), which means that each cylinder has two camshafts - one for the intake valves and one for the exhaust valves.

Camshaft and Valve Timing

The BMW N52B30K0 engine uses BMW's Valvetronic system, which is a variable valve timing system that controls the intake valve lift. The system works by using a single camshaft for each cylinder bank, which is equipped with an eccentric cam that varies the valve lift. This system allows for more precise control of the engine's air intake and can improve both performance and fuel efficiency.

Horsepower Rating

The BMW N52B30K0 engine has a horsepower rating of 215 at 6,250 rpm. This rating is considered to be on the lower side compared to other BMW engines, but it is still sufficient for most drivers.

Torque Rating

The BMW N52B30K0 engine has a torque rating of 184 lb-ft at 2,750 rpm. This torque rating provides good acceleration and overall performance.

Active Years

The BMW N52B30K0 engine was produced from 2006 to 2010. During this time, it was used in various BMW models, including the E90 325i.

Example Models

The BMW N52B30K0 engine was used in the following BMW models:
  • E90 325i (2006-2010)
  • E91 325xi Touring (2006-2007)
  • E60/E61 525i (2006-2007)

Features

The BMW N52B30K0 engine comes with several features that are designed to improve its performance and fuel efficiency. Some of these features include:

Valvetronic Variable Valve Timing System

The BMW N52B30K0 engine uses BMW's Valvetronic system, which is a variable valve timing system that controls the intake valve lift. The system works by using a single camshaft for each cylinder bank, which is equipped with an eccentric cam that varies the valve lift. This system allows for more precise control of the engine's air intake and can improve both performance and fuel efficiency.

Lightweight and Efficient Design

The BMW N52B30K0 engine was designed with a lightweight and efficient design, which helps improve fuel efficiency and reduce emissions. The engine features an aluminum block and cylinder head, which helps reduce weight and improve heat dissipation. The engine's valvetrain is also designed to be lightweight, which reduces internal friction and improves efficiency.

Double-VANOS System

The BMW N52B30K0 engine features BMW's Double-VANOS system, which is a variable valve timing system that controls both the intake and exhaust valves. The system works by using a hydraulic actuator to adjust the camshaft position based on engine load and speed. This system helps improve both performance and fuel efficiency by optimizing valve timing throughout the engine's operating range.

Electronic Throttle Control

The BMW N52B30K0 engine features electronic throttle control, which uses sensors to monitor the position of the accelerator pedal and adjust the throttle valve accordingly. This system allows for more precise control of the engine's throttle response, which improves drivability and can improve fuel efficiency.

Engine Management System

The BMW N52B30K0 engine features a sophisticated engine management system that controls all aspects of the engine's operation, including ignition timing, fuel delivery, and emissions control. The system uses a network of sensors and actuators to constantly monitor and adjust engine operation for optimal performance and efficiency.

Low Friction Design

The BMW N52B30K0 engine features a low friction design, which helps reduce internal friction and improve efficiency. The engine's pistons are coated with a low-friction material, and the piston rings are designed to minimize frictional losses. The engine's valvetrain is also designed to be low friction, which further reduces internal losses. By combining these features, the BMW N52B30K0 engine provides a smooth and efficient driving experience while still delivering good performance.

Maintenance Tips

To ensure the longevity of your BMW N52B30K0 engine, it is important to follow the manufacturer's maintenance schedule. Regular oil changes, air filter replacements, and spark plug replacements can help keep your engine running smoothly. It is also important to use high-quality oil and fuel and to avoid aggressive driving.

Common Issues

While the BMW N52B30K0 engine is known for its reliability, there are some common issues that owners may experience. One of the most common issues is with the Valvetronic system, which can fail and cause rough running or stalling. Another issue is with the VANOS system, which can cause a loss of power and poor acceleration. Other issues include oil leaks, coolant leaks, and fuel pump failures.

Upgrades and Modifications

If you are looking to improve the performance of your BMW N52B30K0 engine, there are several upgrades and modifications that you can consider. Some popular options include a cold air intake, an upgraded exhaust system, and a performance tune. These modifications can help improve horsepower and torque and can provide a more aggressive exhaust note.

Pros and Cons

Pros:
  • Smooth and balanced operation
  • Good fuel efficiency
  • Reliable and long-lasting
  • Easy to maintain
Cons:
  • Lower horsepower compared to other BMW engines
  • Valvetronic and VANOS system issues can be costly to repair
  • Limited options for performance upgrades

Conclusion

Overall, the BMW N52B30K0 engine is a reliable and efficient option for BMW enthusiasts. While it may not have the highest horsepower rating, its smooth operation and fuel efficiency make it a popular choice for daily drivers. By following the manufacturer's maintenance schedule and addressing any common issues, you can ensure that your N52B30K0 engine lasts for many years to come.

FAQs

  1. What does the "low output" N52KP mean?
  • The "low output" N52KP refers to the horsepower and torque ratings of the BMW N52B30K0 engine, which are lower than other BMW engines.
  1. What is the Valvetronic system?
  • The Valvetronic system is a variable valve timing system used in BMW engines. It controls the intake valve lift and can improve both performance and fuel efficiency.
  1. What are some common issues with the BMW N52B30K0 engine?
  • Common issues include Valvetronic and VANOS system failures, oil and coolant leaks, and fuel pump failures.
  1. What modifications can I make to improve the performance of my BMW N52B30K0 engine?
  • Popular modifications include a cold air intake, upgraded exhaust system, and performance tune.
  1. What BMW models use the N52B30K0 engine?
  • The BMW N52B30K0 engine was used in the E90 325i, E91 325xi Touring, and E60/E61 525i.

(E&OE)