The BMW N52B30 is a 3.0L naturally aspirated inline-six gasoline engine introduced by BMW in 2004 and put into full-scale production in 2005.
It is the high-displacement flagship model of the N52 family and
was designed to replace the previous-generation M54B30. This engine won the “Ward’s 10 Best Engines” award in both 2006 and 2007 and
is considered the “swansong” of BMW’s naturally aspirated
inline-six engines.
·Cutting-edge lightweight technology (magnesium-aluminum alloy composite cylinder block): The composite cylinder block,
featuring an outer layer of magnesium alloy and an inner layer of aluminum alloy,
paired with dry cast-iron cylinder liners, keeps the total weight of this large-displacement 3.0L engine at only approximately 161 kg.
·Valve Train and Control Technology: For the first time, it integrates second-generation Valvetronic (continuously variable valve lift technology)
with Double-VANOS (dual variable valve timing system for intake and
exhaust), combined with a three-stage variable intake manifold (DISA), delivering abundant low-end torque and smooth high-rpm performance.
It is widely installed in high-end models such as the
328i, 330i, 528i, 530i, X3, and X5 in North America and global markets.
·Common Issues Addressed in Remanufactured Long Blocks:
Early production models commonly suffer from a cold-engine valve stem noise (HVA Tick), oil consumption caused by carbon buildup and
seizing of piston rings, and oil leaks from the cylinder head gasket or
valve cover. High-quality factory-remanufactured long blocks typically feature upgraded anti-carbon-deposit piston rings, upgraded
liquid-circulating valve lifters, wear-resistant valve stem seals,
and multi-layer steel (MLS) cylinder head gaskets, thoroughly resolving durability issues while retaining the original equipment’s lightweight advantages.
Definition of Bare Engine (Long Block): Includes a magnesium-aluminum alloy composite cylinder block, cylinder head, crankshaft, piston-connecting rod assembly, camshaft, and Valvetronic/timing mechanism;
Our products are exported to various parts of the country, and the customers we have worked with have received unanimous praise. The company has invested over 20 million yuan in high-end remanufacturing equipment imported from abroad and a first-class production team in the country. Our warehouse has a total area of over 8000 square meters, with scientific management and sufficient supply of goods.
| Item | Specification |
|---|---|
| Engine Manufacturer | BMW |
| Engine Family | N52 |
| Engine Code | N52B30 |
| Engine Type | Naturally Aspirated Gasoline Engine |
| Displacement | 2996cc / 3.0L |
| Cylinder Configuration | Inline 6-Cylinder |
| Number of Cylinders | 6 |
| Bore | 85.0 mm |
| Stroke | 88.0 mm |
| Compression Ratio | Approximately 10.7:1, depending on version |
| Valve Configuration | DOHC, 24 Valves |
| Fuel System | Multi-Point Port Injection |
| Aspiration | Naturally Aspirated |
| Valve Timing | Double VANOS |
| Valve Lift Control | Valvetronic |
| Timing Drive | Timing Chain |
| Engine Management | MSV70 / MSV80, depending on application |
| Power Output | Approximately 160–200 kW, depending on version |
| Torque Output | Approximately 270–315 Nm, depending on version |
Specifications vary according to engine suffix, production date, vehicle market and original factory configuration.
Please confirm the exact engine version before ordering.
The BMW N52B30 engine has been used in various BMW passenger cars and SUVs.
Typical applications include:
| BMW Model | Chassis Code | Engine Application |
|---|---|---|
| BMW 130i | E81 / E87 | N52B30 |
| BMW 125i | E82 / E88 | Selected N52B30 versions |
| BMW 128i | E82 / E88 | N52B30 |
| BMW 330i | E90 / E91 | N52B30 |
| BMW 330i | E92 / E93 | N52B30 |
| BMW 328i | E90 / E91 | Selected N52B30 versions |
| BMW 328i | E92 / E93 | Selected N52B30 versions |
| BMW 530i | E60 / E61 | N52B30 |
| BMW 528i | E60 / E61 | Selected N52B30 versions |
| BMW 630i | E63 / E64 | Selected N52B30 versions |
| BMW 730i / 730Li | E65 / E66 | Selected N52B30 versions |
| BMW 528i | F10 | Selected early N52B30 versions |
| BMW X3 3.0si | E83 | N52B30 |
| BMW X3 xDrive28i | F25 | Selected N52B30 versions |
| BMW X5 3.0si / xDrive30i | E70 | N52B30 |
| BMW X1 xDrive28i | E84 | Selected N52B30 versions |
| BMW Z4 3.0si | E85 / E86 | N52B30 |
| BMW Z4 sDrive30i | E89 | N52B30 |
Vehicle Compatibility Notice
Vehicle fitment depends on engine code, engine suffix, production date, regional specification, transmission type and vehicle configuration.
Some BMW models were equipped with N53, N51, N20, N54 or other engine variants instead of the N52B30.
Please provide the vehicle VIN, original engine code and production year for accurate fitment verification before ordering.
The following BMW part numbers are related to selected N52B30 short engine or exchange short engine catalog applications:
11000415030/11000415031
11000421180/11000421181
11000421183/11000421184
11000429723/11000429724
11000429725/11000429726
11000443151/11000443152
11000443153/11000443154
OE Reference Disclaimer
These part numbers are BMW catalog references for selected short engine or exchange short engine applications.
They are not universal long block part numbers.
Please verify the applicable OE reference through the BMW parts catalog using the vehicle VIN and original engine configuration.
We welcome inquiries from international engine distributors, automotive parts wholesalers,
importers, engine rebuilding companies and professional repair workshops.
The BMW N52B30 3.0L engine long block is suitable for professional engine replacement and rebuilding projects.
For wholesale inquiries, please provide:
Required engine code and suffix
Vehicle model and production year
VIN or original engine number
Required engine configuration
Target order quantity
Destination country or shipping port
Our sales team can assist with engine identification, configuration confirmation and export order communication.
Q1: What is the displacement of the BMW N52B30 engine?
The BMW N52B30 has a displacement of 2996cc, equivalent to approximately 3.0 liters.
Q2: Is the N52B30 a turbocharged engine?
No. The BMW N52B30 is a naturally aspirated gasoline engine and does not use a factory turbocharger.
Q3: What is the difference between the N52B25 and N52B30?
The N52B25 is a 2.5L engine, while the N52B30 is a 3.0L engine. They have different bore and displacement specifications,
and their internal components should not be assumed to be interchangeable.
Q4: Which BMW models use the N52B30?
Selected BMW 130i, 128i, 330i, 328i, 530i, X3, X5 and Z4 models use N52B30 engine variants,
depending on production year and market specification.
Q5: Does the long block include the alternator and starter motor?
These external accessories are generally not included in a standard engine long block unless specifically stated in the product configuration.
Q6: How can I confirm whether this engine fits my vehicle?
Please provide the VIN, vehicle production year, original engine code and model information.
These details help verify the correct engine version and application.
Looking for a BMW N52B30 3.0L engine long block supplier?
Contact us for product specifications, engine configuration details, wholesale inquiries and international export cooperation.
We welcome inquiries from automotive engine distributors, importers, wholesalers and professional repair businesses worldwide.
Send us your engine code or vehicle VIN to confirm the correct application before ordering.
| Place of Origin | Guangdong, China |
| Condition | New |
| Purpose | for replace/repair |
| Type | Gas / Petrol Engine |
| Power | OEM Standards |
| Quantity (pieces) | 1 - 10 | 11 - 50 | > 50 |
| Lead time (days) | 7 | 15 | To be negotiated |
1. Our remanufactured products use accessories provided by well-known brand suppliers such as VICTORREINZ, SCHAEFFLER, KS KOLBENSCHMIDT GmbH, etc.
2. Our product quality is close to the original factory quality, but the price is only 50-60% of the original engine. We can also provide you with a one-year or 100000 kilometer warranty service for the entire machine, and professional after-sales personnel will follow up with you.
3. We have over 15 years of experience in the production and research of automotive engines, and our technical level and personnel training are very scientific and mature. Customers who have worked with us have expressed their agreement with our products and after-sales service.
4. 2018 It has achieved an annual production capacity of 2200 units and has become a major supplier of high-end engine remanufacturing and parts in China's automotive aftermarket.
5. In April 2021, T/CAAMTB passed the certification company of China Automobile Research and Huacheng. 19-2019 Certification of the management system requirements of gas vehicle parts remanufacturing enterprisesIn October 2021, he became a member of the National Green Manufacturing Technology Standardization Committee and participated in the drafting of the Technical Specification for Assembly of Remanufacturing Mechanical and Electrical Products.
