The BMW B48 engine is a four-cylinder, 2.0-liter engine that was first introduced in 2014. It is part of BMW’s modular engine family, which also includes the three-cylinder B38 engine and the six-cylinder B58 engine.
The B48 engine features an aluminum block and cylinder head, and has a twin-scroll turbocharger and direct fuel injection system. It uses BMW’s Valvetronic system, which allows for variable valve lift, and is equipped with a variable camshaft timing system.
In its original form, the B48 engine produced 192 horsepower and 207 lb-ft of torque. However, various improvements have been made over the years, including changes to the turbocharger and engine management system, which increased its output to 255 horsepower and 295 lb-ft of torque in its most powerful version.
The engine is known for its smooth and refined operation, as well as its efficiency and low emissions. It is used in various BMW models, including the 2 Series, 3 Series, 4 Series, and X1, and has been praised for its strong performance and fuel economy. It is also a popular choice for engine swaps in older BMW models due to its compatibility and reliability.
BMW B48 specs
| Configuration | Inline |
| Number of cylinders | 4 |
| Number of valves | 16 |
| Displacement | 1998 cc |
| Cylinder diameter | 82 mm |
| Stroke | 94.6 mm |
| Power system | Direct Injection |
| Engine power | 156 – 306 hp |
| Torque | 250 – 450 Nm |
| Compression ratio | 9.5 – 11.0 |
| Fuel type | Medium/Plus |
| Euro class | EURO 6 |
B48 Engine Modifications / What cars use the BMW B48?
The B48 engine is a four-cylinder engine that has been used in a variety of BMW vehicles since 2014. It’s a turbocharged engine with a displacement of 2.0 liters. The B48 engine has become a popular engine among BMW enthusiasts because of its power, efficiency, and reliability. It’s also a versatile engine, with different versions available for different BMW models.
B48A20U1 / 178 hp / 280 Nm / compression ratio 11.0
The B48A20U1 is a version of the B48 engine that has been used in the following BMW models:
- 1-Series F40 2020 – …
- 2-Series F44 2020 – …
- 2-Series F45 2020 – 2021
- 2-Series F46 2020 – …
- X1-Series F48 2020 – …
- X2-Series F39 2020 – …
This version of the B48 engine produces 178 horsepower and 280 Nm of torque. It has a compression ratio of 11.0.
B48A20M0 / 192 hp / 280 Nm / compression ratio 11.0
The B48A20M0 is a version of the B48 engine that has been used in the following BMW models:
- 2-Series F45 2014 – 2018
- 2-Series F46 2015 – 2018
- X1-Series F48 2015 – 2017
This version of the B48 engine produces 192 horsepower and 280 Nm of torque. It has a compression ratio of 11.0.
B48A20M1 / 192 hp / 280 Nm / compression ratio 11.0
The B48A20M1 is a version of the B48 engine that has been used in the following BMW models:
- 2-Series F45 2018 – 2020
- 2-Series F46 2018 – 2020
- X1-Series F48 2017 – 2020
- X2-Series F39 2018 – 2020
This version of the B48 engine also produces 192 horsepower and 280 Nm of torque, with a compression ratio of 11.0.
B48A20O0 / 231 hp / 350 Nm / compression ratio 10.2
The B48A20O0 is a more powerful version of the B48 engine that has been used in the following BMW models:
- 2-Series F45 2014 – 2021
- X1-Series F48 2015 – …
This version of the B48 engine produces 231 horsepower and 350 Nm of torque. It has a compression ratio of 10.2.
B48A20T1 / 306 hp / 450 Nm / compression ratio 9.5
The B48A20T1 is the most powerful version of the B48 engine. It has been used in the following BMW models:
- 1-Series F40 2019 – …
- 2-Series F44 2020 – …
- X2-Series F39 2019 – …
This version of the B48 engine produces an impressive 306 horsepower and 450 Nm of torque. It has a compression ratio of 9.5.
B48B20U1 / 156 hp / 250 Nm / compression ratio 11.0
The B48B20U1 is a different variant of the B48 engine that has been used in the following BMW model:
- 3-Series G20 2020 – …
This variant of the B48 engine produces 156 horsepower and 250 Nm of torque. It also has a compression ratio of 11.0.
B48B20M0 / 184 hp / 290 Nm / compression ratio 11.0
The B48B20M0 is another variant of the B48 engine that has been used in the following BMW models:
- 1-Series F20 2016 – 2019
- 2-Series F22 2016 – 2021
- 3-Series F30 2015 – 2018
- 4-Series F32 2016 – 2021
- 5-Series G30 2017 – …
- X3-Series G01 2017 – 2021
- X4-Series G02 2017 – 2021
This variant of the B48 engine produces 184 horsepower and 290 Nm of torque. It also has a compression ratio of 11.0.
B48B20M1 / 184 hp / 300 Nm / compression ratio 11.0
The B48B20M1 is a newer variant of the B48 engine that has been used in the following BMW models:
- 2-Series G42 2021 – …
- 3-Series G20 2019 – …
- 4-Series G22 2020 – …
- X3-Series G01 2021 – …
- X4-Series G02 2021 – …
- Z4-Series G29 2019 – …
This variant of the B48 engine produces 184 horsepower and 300 Nm of torque. It has a compression ratio of 11.0.
B48B20O0 / 252 hp / 350 Nm / compression ratio 10.2
The B48B20O0 is a more powerful variant of the B48 engine that has been used in the following BMW models:
- 1-Series F20 * 2016 – 2019
- 2-Series F22 2016 – 2021
- 3-Series F30 2015 – 2018
- 4-Series F32 2016 – 2021
- 5-Series G30 2017 – …
- 6-Series G32 2017 – 2020
- X3-Series G01 2017 – …
- X4-Series G02 2017 – …
On the 125i model, this motor develops 224 hp. 310 Nm.
This variant of the B48 engine produces 252 horsepower and 350 Nm of torque. It has a compression ratio of 10.2.
B48B20O1 / 258 hp / 400 Nm / compression ratio 10.2
The B48B20O1 is another more powerful variant of the B48 engine that has been used in the following BMW models:
- 3-Series G20 2019 – …
- 4-Series G22 2020 – …
- 6-Series G32 2020 – …
- 7-Series G11 2019 – …
- X5-Series G05 2019 – …
- X6-Series G06 2019 – …
- Z4-Series G29 2019 – …
On the X5 and X6 models, this motor develops 265 hp. 400 Nm.
This variant of the B48 engine produces 258 horsepower and 400 Nm of torque. It has a compression ratio of 10.2.
B48A20A (192 hp / 280 Nm)
The B48A20A is a variant of the B48 engine that is used in Mini vehicles. It produces 192 horsepower and 280 Nm of torque.
B48A20ATU (178 hp / 280 Nm)
The B48A20ATU is another variant of the B48 engine that is used in Mini vehicles. It produces 178 horsepower and 280 Nm of torque.
B48A20B (231 hp / 350 Nm)
The B48A20B is a more powerful variant of the B48 engine that is used in Mini vehicles. It produces 231 horsepower and 350 Nm of torque.
B48A20BTU (306 hp / 450 Nm)
The B48A20BTU is the most powerful variant of the B48 engine used in Mini vehicles. It produces 306 horsepower and 450 Nm of torque.
Is the BMW B48 a good engine?
Yes, the BMW B48 engine is considered a good engine by many enthusiasts and automotive experts. It is a four-cylinder gasoline engine that powers several BMW models, including the 2 Series, 3 Series, 4 Series, 5 Series, and X1.
The BMW B48 engine features BMW’s TwinPower Turbo technology, which enhances its performance and fuel efficiency. It also has a high compression ratio of 11.0:1 and a displacement of 2.0 liters (1,998 cc), providing a good balance between power and efficiency.
In terms of reliability, the BMW B48 engine has been reported to be relatively trouble-free, with few major issues reported. Routine maintenance, such as regular oil changes, is important to keep the engine running smoothly and prevent potential problems.
Oil specifications for different BMW B48 engine modifications
| Engine Modification | Oil Specification | Capacity | Type | Intervals |
|---|---|---|---|---|
| B48A20U1 | 5W-30, 5W-40, 0W-40 | 5.3 quarts (5.0 liters) | Synthetic | 10,000 – 12,000 miles (16,000 – 19,000 km) or 12 months |
| B48A20M0 | 5W-30, 5W-40, 0W-40 | 5.3 quarts (5.0 liters) | Synthetic | 10,000 – 12,000 miles (16,000 – 19,000 km) or 12 months |
| B48A20M1 | 5W-30, 5W-40, 0W-40 | 5.5 quarts (5.2 liters) | Synthetic | 10,000 – 12,000 miles (16,000 – 19,000 km) or 12 months |
| B48A20O0 | 5W-30, 5W-40, 0W-40 | 5.5 quarts (5.2 liters) | Synthetic | 10,000 – 12,000 miles (16,000 – 19,000 km) or 12 months |
| B48A20T1 | 5W-30, 5W-40, 0W-40 | 5.3 quarts (5.0 liters) | Synthetic | 10,000 – 12,000 miles (16,000 – 19,000 km) or 12 months |
| B48B20U1 | 5W-30, 5W-40, 0W-40 | 5.3 quarts (5.0 liters) | Synthetic | 10,000 – 12,000 miles (16,000 – 19,000 km) or 12 months |
| B48B20M0 | 5W-30, 5W-40, 0W-40 | 5.3 quarts (5.0 liters) | Synthetic | 10,000 – 12,000 miles (16,000 – 19,000 km) or 12 months |
| B48B20M1 | 5W-30, 5W-40, 0W-40 | 5.5 quarts (5.2 liters) | Synthetic | 10,000 – 12,000 miles (16,000 – 19,000 km) or 12 months |
| B48B20O0 | 5W-30, 5W-40, 0W-40 | 5.5 quarts (5.2 liters) | Synthetic | 10,000 – 12,000 miles (16,000 – 19,000 km) or 12 months |
| B48B20O1 | 5W-30, 5W-40, 0W-40 | 5.5 quarts (5.2 liters) | Synthetic | 10,000 – 12,000 miles (16,000 – 19,000 km) or 12 months |
| B48A20A | 5W-30, 5W-40, 0W-40 | 5.3 quarts (5.0 liters) | Synthetic | 10,000 – 12,000 miles (16,000 – 19,000 km) or 12 months |
| B48A20ATU | 5W-30, 5W-40, 0W-40 | 5.3 quarts (5.0 liters) | Synthetic | 10,000 – 12,000 miles (16,000 – 19,000 km) or 12 months |
| B48A20B | 5W-30, 5W-40, 0W-40 | 5.5 quarts (5.2 liters) | Synthetic | 10,000 – 12,000 miles (16,000 – 19,000 km) or 12 months |
| B48A20BTU | 5W-30, 5W-40, 0W-40 | 5.5 quarts (5.2 liters) | Synthetic | 10,000 – 12,000 miles (16,000 – 19,000 km) or 12 months |
Estimated fuel consumption
A table of estimated fuel consumption for 10 different BMW models equipped with the B48 engine:
| Vehicle Model | MPG (Miles per gallon) | L/100 km (Liters per 100 kilometers) |
|---|---|---|
| BMW 2 Series Gran Coupe | 29 – 35 | 8.1 – 6.7 |
| BMW 3 Series Sedan | 28 – 35 | 8.4 – 6.7 |
| BMW 4 Series Coupe | 29 – 34 | 8.1 – 7.0 |
| BMW X1 sDrive20i | 34 – 39 | 6.9 – 6.0 |
| BMW X1 xDrive20i | 33 – 37 | 7.1 – 6.4 |
| MINI Cooper S Hardtop | 29 – 34 | 8.1 – 7.0 |
| MINI Cooper S Countryman | 27 – 32 | 8.7 – 7.4 |
| MINI Cooper S Convertible | 28 – 33 | 8.4 – 7.1 |
| MINI Clubman Cooper S | 28 – 33 | 8.4 – 7.1 |
| MINI Countryman Cooper S | 27 – 32 | 8.7 – 7.4 |
Please note that these are estimates based on official fuel economy ratings and actual fuel economy can vary depending on factors such as vehicle weight, transmission type, driving conditions, and more. It is recommended to refer to the official fuel economy ratings of a specific BMW or MINI model equipped with the B48 engine for a more accurate estimate.
Reliability of the BMW B48 Engine
Overall, the B48 engine is known for its reliability. It is a well-built engine that is designed to last for a long time. However, like all engines, it is not immune to problems. Some of the common issues that B48 engine owners have reported include:
Timing Chain Tensioner Failure
The timing chain tensioner is a critical component of the engine’s timing system. If it fails, it can cause serious engine damage. Some B48 engine owners have reported issues with the timing chain tensioner, which can cause the chain to become loose or even break. This can cause the engine to run poorly, or even fail completely.
Water Pump Failure
The water pump is another critical component of the engine. It is responsible for circulating coolant throughout the engine to keep it cool. If the water pump fails, it can cause the engine to overheat, which can cause serious damage. Some B48 engine owners have reported issues with the water pump, which can cause leaks or failure.
Oil Leaks
Some B48 engine owners have reported oil leaks, which can be caused by a variety of issues. Common causes of oil leaks include faulty gaskets, worn seals, or damaged oil lines. If left untreated, oil leaks can cause serious engine damage.
Turbocharger Failure
The B48 engine is equipped with a twin-scroll turbocharger, which can provide a significant boost in power. However, the turbocharger is also a potential point of failure. Some B48 engine owners have reported issues with the turbocharger, which can cause poor performance or even engine failure.
BMW B48 maintenance schedule with estimated costs
| Maintenance Item | Interval | Estimated Cost |
|---|---|---|
| Oil and Filter Change | 10,000 miles or 1 year | $100 – $150 |
| Air Filter Replacement | 30,000 miles | $50 – $100 |
| Spark Plug Replacement | 60,000 miles | $300 – $500 |
| Brake Fluid Flush | 2 years | $100 – $150 |
| Coolant Flush | 3 years | $150 – $250 |
| Transmission Fluid Flush | 60,000 miles or 5 years | $300 – $500 |
| Timing Belt Replacement | 90,000 miles | $800 – $1,200 |
| Fuel Filter Replacement | 60,000 miles | $100 – $150 |
| Battery Replacement | 4-5 years | $200 – $400 |
| Serpentine Belt Replacement | 60,000 miles | $100 – $200 |
| Tire Rotation | 10,000 miles | $50 – $100 |
| Wheel Alignment | As needed or every 2-3 years | $100 – $200 |
Please note that these are estimated costs and may vary depending on factors such as location, the specific maintenance item needed, and the mechanic performing the work. It is important to consult your owner’s manual for the recommended maintenance schedule for your specific vehicle and to shop around for the best prices on maintenance services.
Tuning Option for BMW B48
Here is the table with the estimated costs and horsepower gains for different tuning options:
| Tuning Option | Estimated Cost | Estimated Horsepower Gain |
|---|---|---|
| ECU Remap | $500 – $1000 | 30 – 60 horsepower |
| Piggyback Tune | $500 – $1000 | 20 – 40 horsepower |
| Downpipe | $500 – $1000 | 10 – 20 horsepower |
| Intake | $200 – $500 | 5 – 10 horsepower |
| Intercooler | $500 – $1000 | 5 – 15 horsepower |
| Exhaust | $1000 – $2000 | 10 – 20 horsepower |
| Turbo Upgrade | $3000 – $5000 | 50 – 100 horsepower |
| Supercharger Kit | $7000 – $10000 | 70 – 120 horsepower |
It’s important to note that the actual costs and horsepower gains may vary depending on the specific tuning shop, modifications made, and other factors. Additionally, tuning may void the manufacturer’s warranty, so it’s important to consider this before making any modifications.
In conclusion, BMW B48 engine tuning can provide significant horsepower gains, but it’s important to consider the costs and potential consequences before making any modifications. It’s recommended to work with reputable tuning shops and consider the overall impact on the vehicle’s performance and reliability.
BMW B48 engine price
A detailed table of the BMW B48 engine price for used, remanufactured, and new engines with the average price:
| Type of Engine | Condition | Price Range |
|---|---|---|
| Used | Good Condition, Low Mileage | $3,000 – $6,000 |
| Used | Average Condition, Average Mileage | $2,000 – $4,000 |
| Used | Poor Condition, High Mileage | $1,000 – $2,000 |
| Remanufactured | Good Condition | $4,000 – $7,000 |
| Remanufactured | Average Condition | $3,000 – $5,000 |
| Remanufactured | Poor Condition | $2,000 – $3,000 |
| New | OEM | $6,000 – $9,000 |
| New | Aftermarket | $4,000 – $7,000 |
| Average Price | $3,000 – $7,000 |
Please note that these prices are estimates and may vary depending on factors such as location, availability, and seller. It is important to do your research and buy from a reputable seller to ensure the quality of the engine. Additionally, installation costs and other associated fees may also apply.
FAQs
- What BMW models use the B48 engine?
The B48 engine is used in many BMW models, including the 2 Series, 3 Series, 4 Series, 5 Series, X1, X2, X3, and X4.
- What is the horsepower range for the B48 engine?
The B48 engine produces between 181 and 302 horsepower, depending on the model and tune.
- What are some common issues with the B48 engine?
Some common issues with the B48 engine include timing chain tensioner failure, water pump failure, oil leaks, and turbocharger failure.
- How can I prevent common issues with the B48 engine?
To prevent common issues with the B48 engine, it is important to follow the recommended maintenance schedule, address problems early, and use high-quality parts and fluids.
- Should I have a B48 engine inspected before purchasing a BMW?
Yes, it is recommended to have a qualified mechanic inspect a BMW equipped with the B48 engine before making a purchase to identify any potential issues.
- How often should I change the oil in my B48 engine?
The recommended oil change interval for the B48 engine is approximately every 10,000 miles. However, it is important to check your owner’s manual for the recommended maintenance schedule for your specific vehicle.
- Is the B48 engine fuel-efficient?
Yes, the B48 engine is designed to be fuel-efficient, and many BMW models equipped with the engine have good fuel economy ratings.
- How long does the B48 engine typically last?
The B48 engine is designed to last for a long time with proper maintenance and care. With regular maintenance, the engine can last for well over 100,000 miles.
- Can I tune my B48 engine for more power?
Yes, there are aftermarket tuning options available for the B48 engine that can increase horsepower and torque. However, it is important to choose a reputable tuner and to ensure that the modifications are done properly to prevent potential issues.
- Is the B48 engine a good choice for a BMW?
Yes, the B48 engine is a great choice for a BMW, offering a balance of performance and fuel efficiency. It is also a reliable engine when properly maintained, making it a good long-term investment.
- Are there any specific driving habits that can affect the B48 engine’s reliability?
Yes, driving habits can play a role in the B48 engine’s reliability. Aggressive driving, such as rapid acceleration and hard braking, can put extra stress on the engine and its components, potentially leading to issues down the road. It is important to drive responsibly and follow the recommended maintenance schedule to keep the engine running smoothly.
- Can I replace the timing chain tensioner myself?
Replacing the timing chain tensioner is a complex and involved process that should only be attempted by a qualified mechanic. Attempting to replace the tensioner yourself can lead to further engine damage or even complete engine failure.
- What is the cost to replace a failed water pump on a B48 engine?
The cost to replace a failed water pump on a B48 engine can vary depending on the vehicle and the mechanic. However, it can be a costly repair, with some estimates ranging from $500 to $1,000 or more.
- Can using lower quality parts and fluids affect the B48 engine’s reliability?
Yes, using lower quality parts and fluids can potentially lead to issues with the B48 engine. It is important to use high-quality parts and fluids that meet BMW’s specifications to ensure optimal performance and reliability.
- How do I know if my B48 engine is experiencing oil leaks?
If you notice oil spots on the ground where you park your car, or if you smell burning oil while driving, it may be a sign that your B48 engine is experiencing oil leaks. It is important to have the engine inspected by a qualified mechanic as soon as possible to prevent further damage.
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