BMW 330i Engine

BMW 330i Engine – Complete Information

The BMW 330i engine has been around for more than three decades. The 3-Series is considered by many BMW enthusiasts to be the brand’s heart and soul, as a driver-focused sedan with space for four that can come alive on hilly roads when commutes become intriguing. It’s a direct successor of the BMW that first debuted in the 2000s and cemented the company’s reputation.

The BMW 330i was first produced in the early 2000s. It’s a midsize saloon with four doors and five seats, rear-wheel drive, and a front-engined front engine. The 255 BHP naturally aspirated 3 Litre 24v Inline 6 petrol engine accelerates the 330i from 0 to 60 mph in 5.8 seconds and reaches a top speed of 160 mph. It’s available with either a six-speed manual or a six-speed automatic transmission. The BMW 330i Engine will be discussed.

Table of Content

  • Engine Specifications
  • History of 330i Engine
  • Problems of BMW 330i Engine
  • Conclusion

Engine Specifications

The 330i is the engine with the 6-cylinder in the lineup. With a 0-60mph time of 5.8  seconds and a peak speed of 160 mph, it’s smooth and quiet but fun to drive. The 330i is one of the finest engines in the lineup.

The BMW 3 Series 330i Sedan was the top-of-the-line version in the 3 Series range from 2008 to 2010. This 330i Sedan model is a 2.0-liter engine that produces 255 horsepower and 295 pound-feet of torque. The automatic gearbox is offered for the BMW 3 Series 330i Sedan. This engine generates a maximum torque of 295 Nm (184 lb. ft) at 2750-4295 rpm and a maximum power of 218 PS (255 bhp – 160 kW) at 6500 rpm. The rear-wheel-drive (RWD) with a 6-speed manual transmission delivers the power to the road.

History of 330i Engine

Initially, a new version of the venerable 3 Series arrived, with engine upgrades like dual-overhead-camshaft designs and four-valve cylinder heads. The 3 Series also features VANOS technology, which allows for variable valve timing to increase power and efficiency. The top-of-the-line engine for the generation was a 193 horsepower inline-six. On the market are two new turbo diesel six-cylinder engines.

With the fifth-generation 3 Series, the 330i gasoline engine was available. The engine was upgraded with common-rail injection and a variable-geometry turbocharger, increasing output to 163 horsepower. Thanks to a new magnesium-aluminum crankcase that allowed the inline-six engines to conserve weight, the 330i gained 218 horsepower. The 330i was the next big step forward in 3 Series engine development, debuting in 2008. Other BMW automobiles quickly adopted the 3.0-liter twin-turbocharged engine, which produced 295 horsepower.

Problems of BMW 330i Engine

Leaking Oil Filter Housing Gasket

Leaking oil filter housing gaskets are the most common problem with all 330i engines, and you’ll be hard pushed to find one that hasn’t had this problem at some point. In the assembly, there are two gaskets. The oil filter housing has two connections: one to the engine block and the other to the oil cooler. Over time, these gaskets become stiff and brittle, resulting in an oil leak. Gaskets are affordable and simple to replace.

Engine cooling system

The coolant system keeps the engine cool and protects it from overheating, the coolant system is one of the most important components of any vehicle. The 330i’s cooling systems, on the other hand, tend to fail, causing the car to stop while driving. The BMW cooling system is made up of several components, each of which can fail after a specific amount of kilometers on the road. The leak in the coolant transfer pipe is nearly astonishing. The front seal of the coolant transfer tube, which is positioned under the suction tank, is frequently the source of this leak. Because of their location in the engine, the timing cover, timing chain, intake manifold, and cylinder heads must all be changed appropriately.

Valvetronic Stepper Motor

In addition to Vanos, these engines have a Variable Valve Lift system called Valvetronic. A stepper motor and a set of levers control the amount of intake valve lift. Despite its intricacy, the stepper motor itself is the only common failure point, which might seize. BMW uses a sophisticated crankcase ventilation system that incorporates a series of separators and a pressure-regulating diaphragm. If this diaphragm ruptures, large amounts of oil vapor will leak into the intake manifold, resulting in blue smoke from the exhaust and excessive oil consumption. Although the diaphragm is not available from BMW as a replacement part.

High-Pressure Pump on Turbocharged Engines

A high-pressure fuel injection system is utilized in turbocharged engines, and it has two significant failure sites. One is a high-pressure pump, which causes a lot of reluctance, lack of power, and poor acceleration, especially in early versions. Blockage of fuel injectors is another issue that might arise if the vehicle is driven on low-quality fuel. Turbochargers can also leak oil inside, but this is a rare event.


The BMW 330i engine, which appeared to be slow in early versions, was gradually upgraded. The power increased as the torque increased, and the mileage matched that of BMW’s newer versions. The improved engines in the 330i model generate new interest and demand among customers. The engine was good, but it had problems like any other car at the time, despite its popularity. This was all about the BMW 330i Engine.

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