M4 engine

Types of M4 engines

The M4 engine is a type of internal combustion engine that powers the BMW M4, a high-performance sports coupe. The M4 engine generates a lot of power and has a distinctive sound that sets it apart from regular engines. The BMW M4 has had several engine options since its launch in 2014. Below are some common M4 engines:

• BMW S55 engine:

  The S55 is a 3.0-liter inline-six engine that has twin turbochargers. It generates a lot of power and was used in the earlier models of the BMW M4. The standard M4 with the S55 engine generates around 425 horsepower, while the M4 Competition models generate up to 503 horsepower. The S55 engine is known for its strong performance and versatility.

• BMW S58 engine:

  The S58 is another 3.0-liter inline-six engine with twin turbochargers. However, it is a more recent engine that was introduced in the BMW M4 G82 in 2020. The S58 engine provides more power and efficiency compared to the S55 engine. The standard M4 with the S58 engine generates about 473 horsepower, while the M4 Competition models with the S58 engine can generate up to 503 horsepower.

• BMW M4 G83 Gran Coupe:

  The M4 G83 is the first-ever BMW M4 Gran Coupe. It was launched in 2023. The BMW M4 G83 Gran Coupe uses the S58 engine. The standard M4 G83 models generate about 493 horsepower, while the M4 G83 Competition models with the S58 engine can generate up to 590 horsepower.

• BMW M4 xDrive:

  The M4 xDrive is a variant of the M4 that uses the xDrive all-wheel-drive system. The xDrive system is used to enhance the traction and stability of the M4. The M4 xDrive models also use the S58 engine, with power outputs similar to the standard M4 and M4 Competition models.

Specification & Maintenance of M4 Engine

The M4 engine specification varies depending on the generation version.

• M4 Engine G82 and G83 Specifications: The base engine for the BMW M4 G82 and G83 is the S58. This 3.0-liter inline-six engine has two turbochargers that produce 473 horsepower and 406 lb-ft of torque. The M4 Competition versions increase the power to 503 hp and 442 lb-ft. Both versions have an 8-speed automatic transmission. However, the standard M4 gets the rear-wheel-drive system, while the M4 Competition gets the all-wheel-drive system.
• M4 Engine E30 Specifications: The M4 E30 is powered by the BMW S14 engine. The S14 is a naturally aspirated 2.0L inline-four engine. It has a higher compression ratio of 10.5:1. The M3 E30 engine produced between 143 hp and 195hp, depending on the variant. The M4 E30 also had 5-speed manual transmission and rear-wheel drive. The M4 E30 was produced in small numbers, with only 600 units made in 1983 to 1984.
• M4 Engine E92 Specifications: The BMW M4 E92 was powered by the N43B30 engine. This engine is a 3.0L inline-six engine with natural aspiration. It produced 265hp for the standard variant and 309hp for the M Sport variant.
• M4 Engine F82 Specifications: BMW M4 F82 uses the N55B30O1 engine, a 3.0-liter inline-six engine with a twin-scroll turbocharger. It produced 425 hp and 406 lb-ft of torque for the standard variant and 503hp and 442lb-ft for the competition variant.

The maintenance requirements for the BMW M4 engine are pretty standard. However, they may vary slightly for different engine specifications. Generally, users need to do the following to keep the M4 engine in good condition.

• Regular oil change: Schedule an oil change every 5,000 to 10,000 miles, depending on the engine specifications and usage.
• Inspect and replace air filters: Check the air filters every 10,000 miles and replace them if needed. The replacement interval for the air filters is between 40,000 and 60,000 miles.
• Inspect spark plugs: Have a mechanic check the spark plugs and ignition coils every 20,000 miles. Replace the spark plugs after 60,000 miles.
• Check engine coolant: Have a professional check the coolant level and quality every 30,000 miles. Drain and replace the coolant every four years or after 40,000 miles.
• Monitor tire conditions and maintain proper pressure: Check tire conditions and pressure before embarking on long journeys or every month. Change the tires during winter or summer.
• Follow the maintenance schedule: Adhere to the maintenance schedule recommended by BMW.

How to Choose M4 Engine

• Understand M4 Engine Types

  Get to know the various kinds of M4 engines, such as diesel, gasoline, and electric engines. Each type has its benefits and is suitable for a different kind of work. For example, if one needs an engine with a lot of power, going with a gasoline or electric engine will be a good idea. If one wants a more fuel-efficient option, then a diesel engine will do the trick.

• Determine Power Requirements

  Think about how much power is needed to do the work. The power of an M4 engine is measured in horsepower or torque. If one is using an engine for heavy work, like pulling big things or driving on rough roads, then going with an engine that has more power is needed. For lighter work, an engine with less power will be enough.

• Consider Fuel Efficiency

  Figuring out how much fuel the engine uses is important. An engine that gets good gas mileage, or fuel efficiency, will save money in the long run. Even if the engine costs more upfront, the lower fuel costs over time make it a better deal. M4 engines that run on alternative fuels like biodiesel or propane are also available. These engines can be more fuel efficient and are better for the environment.

• Evaluate Maintenance and Reliability

  When choosing an M4 engine, reliability and low maintenance needs are essential. Find out how much care each engine type needs to stay in good shape. Some engines require more frequent oil changes or special care to run well. Look for engines with features that help prevent problems, like good cooling or self-cleaning parts. That way, the engine can run for many years without major breakdowns.

• Assess Environmental Impact

  When picking an M4 engine, how good or bad it is for the environment matters. Gas and diesel engines put out gases that can hurt air quality and cause health problems. Electric engines are cleaner because they have fewer emissions. If one lives in a place with strict pollution rules, an engine with low emissions will be a smart choice.

• Budget Considerations

  Budget is one of the most important factors when choosing an M4 engine. The initial cost of the engine is just one part. Think about how much fuel it will use over the years. Also, consider the costs of caring for it, like oil and parts. Making an estimate of how much money will be needed for it all will help pick an engine that fits into the budget.

How to DIY and Replace M4 Engine

Some common tools needed to maintain and repair the BMW M4 engine include:

• Socket set: A socket set with both standard and metric sockets will be used to loosen and tighten bolts on various engine components.
• Wrench set: An assortment of wrenches in different sizes will be needed to access and adjust fasteners in tight spaces.
• Screwdriver set: A set of screwdrivers will be used for tasks like removing trim pieces or electrical connectors.
• Torx driver set: Torx drivers in various sizes will be required for specific screws used throughout the engine.
• Spark plug socket: A specialized socket with a rubber insert to grip spark plugs will be needed for spark plug changes.
• Oil filter wrench: An oil filter wrench will be used to remove and replace the engine's oil filter.
• Feeler gauge: A feeler gauge will be needed for tasks like checking and adjusting valve clearances if applicable to the engine design.
• Compression tester: This tool measures cylinder compression, diagnosing issues like worn piston rings or valve leaks.
• Timing belt/water pump replacement tool kit: If the engine has a timing belt, a specialized kit with tensioning and aligning tools will be needed for replacement.
• Piston ring compressor: A piston ring compressor will be required when installing new piston rings during an engine rebuild.

Follow these steps to install a new M4 engine successfully.

• Choose the right M4 engine replacement for the car.
• Gather necessary tools and safety gear.
Make sure to disconnect the battery, drain fluids, and remove the engine cover and intake manifold before starting the process.
• Follow the manufacturer's service manual for detailed instructions on engine disassembly and assembly.
• Prepare the new engine by installing components like the oil pan, timing components, and accessories according to the manual.
• Carefully lift the new engine using an engine hoist and position it in the engine bay, aligning it with the mounts.
• Reconnect all electrical, cooling, fuel, exhaust, and intake systems as per the manual.
• Fill the new engine with the recommended fluids, such as oil and coolant.
• Reconnect the battery and perform a pre-run checklist to ensure everything is in place.
• Start the engine and let it run for a few minutes. Check for leaks, unusual noises, and proper temperature.

Q and A

Q1: How long does the M4 engine last?

A1: The M4 engine has a lifetime warranty of up to 200,000 miles. However, the durability of the M4 engine can be affected by many factors, such as: driving habits, regular maintenance, engine load, etc.

Q2: What is the difference between the M4 Gt and the M4 Gt Competitor?

A2: The M4 GT has an M4 engine with 375 hp. The M4 GT Competitor is upgraded with an M4 engine that has 503 hp. The rest of the specifications are quite similar.

Q3: Can the M4 engine be modified to increase power?

A3: Yes. The M4 engine can be modified with the following components to increase power: New air filter, new air intake, new intercooler, upgraded turbocharger, new exhaust system, engine tuning.