BMW N52B30 Engine for Sale – 3.0L Inline-6 Petrol Engine

The BMW N52B30 is a 3.0-litre naturally aspirated inline-six petrol engine developed by BMW. It belongs to the N52 engine family and was used in several BMW passenger cars, coupes and SUVs.

Known for its smooth six-cylinder operation, aluminium-magnesium composite construction, Valvetronic technology and double VANOS variable valve timing, the N52B30 is a popular option for BMW owners searching for a replacement engine.

2. Engine configuration

The BMW N52B30 features an inline-six-cylinder configuration, with six cylinders arranged in a straight line. This design provides balanced engine operation and smooth power delivery.

Its 24-valve DOHC cylinder head uses four valves per cylinder. BMW's Valvetronic system controls intake valve lift, while Double VANOS adjusts intake and exhaust camshaft timing.

Other notable engine technologies include:

• Aluminium-magnesium composite crankcase construction.

• Electronic engine management.

• Variable intake technology on applicable versions.

• Electric coolant pump.

• Naturally aspirated induction system.

These technologies contribute to the engine's performance characteristics and make it a distinctive member of BMW's naturally aspirated six-cylinder engine range.

3. Engine displacement

The N52B30 has a displacement of 2,996 cc, commonly marketed as a 3.0-litre engine.

Its bore measures approximately 85 mm, while its stroke measures approximately 88 mm.

The displacement provides the engine with a larger capacity than the N52B25 2.5-litre variant. Buyers replacing an existing N52B30 should ensure that the replacement unit has the correct internal configuration and engine identification.

4. Fuel type

The BMW N52B30 is designed to operate on petrol (gasoline).

It uses an electronic multi-point fuel injection system rather than a diesel common-rail injection system or direct petrol injection system.

Fuel requirements can vary according to the vehicle's market specification and engine calibration. Buyers should consult the original vehicle's fuel recommendations before installation and operation.

5. Aspiration / induction

The N52B30 is a naturally aspirated engine.

Unlike turbocharged or supercharged engines, it does not depend on a forced-induction system to increase the amount of air entering the cylinders.

Depending on the engine version, it uses BMW's variable intake manifold technology, including a three-stage DISA intake system, to help optimize airflow across different engine speeds.

6. Power output

The higher-output N52B30 configuration commonly produces approximately 255–258 horsepower (190 kW).

However, the N52B30 family includes different power configurations. Lower-output versions can produce approximately 218 horsepower, while certain other applications have different factory ratings.

For this reason, buyers should confirm the exact engine variant rather than relying solely on the N52B30 engine code.

7. Torque

The commonly referenced 258 hp N52B30 version produces approximately 300 Nm of torque.

BMW technical documentation lists this torque output across approximately 2,500–4,000 rpm for a particular configuration.

Other N52B30 variants can have different torque ratings. Confirm the original engine specification when sourcing a replacement.

8. Years / generation

The BMW N52B30 belongs to BMW's N52 engine generation, introduced during the mid-2000s.

It appeared in multiple BMW chassis generations, with applications extending into the 2010s depending on the model and market.

Common chassis designations include:

These are potential application references, not a guarantee that every vehicle in each generation uses an identical engine configuration.

Why buy a BMW N52B30 replacement engine?

If your original BMW engine has developed serious mechanical problems or requires replacement, sourcing a compatible N52B30 engine can be an option worth considering.

When searching for a BMW N52B30 engine for sale, buyers should prioritize:

• Correct engine identification: Confirm that the replacement carries the correct N52B30 engine code and specification.

• Vehicle compatibility: Match the engine to the vehicle's chassis, production year and original configuration.

• Engine condition: Ask about mileage, service history and any previous repairs.

• Engine completeness: Establish whether the unit includes the cylinder head, intake manifold, alternator, starter motor, fuel system components and other accessories.

• Testing information: Request available compression test results, inspection reports or running-condition evidence.

• Warranty: Confirm whether the supplier offers a warranty and understand its coverage and conditions.

A complete engine and a bare engine assembly may have significantly different prices and installation requirements. Always confirm exactly what is included before ordering.

How to choose the correct BMW N52B30 engine

Before placing an order, provide the supplier with your vehicle's VIN and original engine code.

This helps establish whether the replacement engine is appropriate for your vehicle.

You should also provide:

1. BMW model and trim.

2. Production year.

3. Chassis generation.

4. Original engine code.

5. Transmission type.

6. Country where the vehicle will be registered.

7. Whether you need a complete or bare engine.

These details help reduce the risk of purchasing an incompatible replacement engine.

Frequently asked questions

1. What is the displacement of the BMW N52B30 engine?

The BMW N52B30 has a displacement of 2,996 cc, commonly referred to as a 3.0-litre petrol engine.

2. Is the BMW N52B30 turbocharged?

No. The N52B30 is naturally aspirated and does not use a factory turbocharger or supercharger.

3. How much horsepower does the N52B30 produce?

Power depends on the specific engine variant. The commonly referenced higher-output version produces approximately 255–258 hp, while lower-output versions produce different figures.

4. Which BMW vehicles use the N52B30 engine?

Applications include selected BMW 330i, 530i, 630i, X3, X5, Z4 and 730i models. Compatibility depends on the exact chassis, production year and market specification.

5. Can I replace my N52B25 with an N52B30?

An N52B30 conversion may be possible in some vehicles, but it is not necessarily a direct replacement. Engine electronics, wiring, intake components, transmission compatibility and other vehicle-specific systems must be evaluated.

6. Is the BMW N52B30 available as a complete engine?

Availability depends on the supplier. Ask whether the engine is supplied complete with accessories or as a bare engine assembly.

7. What information is needed to order a replacement N52B30?

Provide your BMW model, production year, VIN and original engine code. These details help the supplier check the correct replacement configuration.

Buy BMW N52B30 Engine – Request Availability and Pricing

Looking for a BMW N52B30 engine for sale? Finding the correct replacement is essential for achieving proper vehicle compatibility and avoiding unnecessary installation complications.

Before purchasing, confirm the engine code, production specification, condition, included components and compatibility with your BMW.

Contact your engine supplier with your vehicle details to request:

• Current engine availability.

• Complete or bare engine options.

• Engine condition and mileage information.

• Product photographs and testing evidence.

• Warranty information.

• Shipping options and delivery estimates.

• Final purchase quotation.

Request a quotation for a BMW N52B30 replacement engine today and confirm compatibility before placing your order.

Potential donor vehicle applications include:

• BMW 330i (E90/E91/E92/E93)

• BMW 530i (E60/E61)

• BMW 630i (E63/E64)

• BMW X3 3.0si (E83)

• BMW X5 3.0si / 3.0i (E70, depending on market and specification)

• BMW Z4 3.0si and 30i (E85/E86/E89, depending on engine version)

• BMW 730i (E65/E66, depending on market and production specification)

Engine specifications vary depending on the exact N52B30 sub-variant, production year and vehicle application. The following specifications describe the commonly encountered higher-output version.

The BMW N52B30 engine was installed in different BMW model ranges. However, finding the same engine family does not automatically guarantee direct interchangeability.

Potential donor vehicle applications include:

• BMW 330i (E90/E91/E92/E93)

• BMW 530i (E60/E61)

• BMW 630i (E63/E64)

• BMW X3 3.0si (E83)

• BMW X5 3.0si / 3.0i (E70, depending on market and specification)

• BMW Z4 3.0si and 30i (E85/E86/E89, depending on engine version)

• BMW 730i (E65/E66, depending on market and production specification)

Important fitment considerations

Before purchasing a BMW N52B30 replacement engine, verify the following:

• Original engine code and sub-variant.

• Vehicle identification number (VIN).

• Vehicle production year and chassis generation.

• Engine mounting points and sump configuration.

• Transmission compatibility.

• Wiring harness and ECU/DME compatibility.

• Intake and exhaust configurations.

• Cooling system connections and accessory components.

• Emissions equipment and market-specific specifications.

An N52B30 from one BMW model may require the transfer of original vehicle-specific components before installation in another model.

For the most accurate compatibility confirmation, compare the donor engine identification and BMW part numbers against the original engine.