BMW 335i vs. M3 - Which Model Is a Better Buy? | Performance, Reliability, Cost of Ownership and More.
Written By: BAVMODS Team
Updated: June 5, 2024
BMW 335i vs. M3: Which Model Is a Better Buy?
The longstanding comparison between the turbocharged 335i and the naturally aspirated V8 M3 remains relevant today. With both models offering so much, which one deserves the crown?
BMW 335i: The Modern 2JZ
Engine and Performance
The BMW 335i, introduced in 2006, is powered by the highly acclaimed N54 twin-turbo inline-six engine. This engine, known for its smooth and linear power delivery, produces 300 horsepower and 300 lb-ft of torque, allowing the 335i to accelerate from 0 to 60 mph in just over five seconds. The N54's design includes an open-deck block, aluminum construction, and direct fuel injection, which contribute to its impressive performance and efficiency. Enthusiasts often compare the N54 to the legendary Toyota 2JZ engine due to its tuning potential and durability.
The tuning community has embraced the N54 engine for its ability to handle significant power upgrades. With simple modifications like a JB4 tuner, downpipes, and upgraded intercoolers, it's common to see 335i models pushing 400+ horsepower on pump fuel. More extensive modifications, including larger turbochargers and custom tuning, can result in power figures exceeding 600 horsepower, making the 335i a formidable competitor on the track and the street.
Reliability
While the N54 engine is celebrated for its performance, it is also notorious for several common reliability issues. Owners frequently report problems with the high-pressure fuel pump (HPFP), fuel injectors, and turbochargers. The HPFP is particularly troublesome and can fail without warning, often requiring replacement at a cost of around $1,200. Fuel injectors can also be problematic, with replacements costing about $200 each.
The electric water pump is another common failure point, typically costing $800-$1,000 to replace. Additionally, the N54 engine is prone to carbon buildup on the intake valves, which can affect performance and require periodic cleaning, typically costing $500-$1,000. Despite these issues, many owners find that regular maintenance and proactive repairs can mitigate some of these costs and keep the 335i running smoothly.
Average Maintenance Costs
- High-Pressure Fuel Pump (HPFP) Replacement: ~$1,200
- Fuel Injectors Replacement: ~$200 each
- Electric Water Pump Replacement: $800-$1,000
- Carbon Buildup Cleaning: $500-$1,000
- Oil Change: $100-$150
- Brake Pad Replacement: $300-$500
- Average Annual Maintenance and Repairs: $1,500-$2,500
Cost of Ownership
Owning a BMW 335i can be a thrilling experience, but it's essential to consider the costs involved. On average, owners report spending between $1,500 and $2,500 annually on maintenance and repairs. Routine services like oil changes cost around $100-$150, while brake pad replacements range from $300-$500. More significant repairs, such as HPFP and water pump replacements, can add to the overall cost of ownership.
Fuel economy is another consideration, with the 335i averaging around 17.5 miles per gallon in city driving and up to 26 mpg on the highway. While the car's performance is impressive, its fuel efficiency may not be ideal for those seeking a more economical daily driver.
Pros and Cons
Pros:
- Performance: The N54 engine offers exceptional performance with smooth power delivery and significant tuning potential. The twin-turbo setup provides ample torque across the RPM range, making the 335i a joy to drive.
- Luxury and Sportiness: The 335i strikes a perfect balance between luxury and sportiness, featuring a stylish design and high-quality interior materials. The car's sleek lines and aggressive stance make it a head-turner.
- Handling: With its sport-tuned suspension and rear-wheel-drive layout, the 335i offers excellent handling and driving dynamics. The car feels planted and responsive, providing a confident driving experience on both twisty roads and highways.
Cons:
- Reliability Issues: Common problems with the HPFP, fuel injectors, and turbochargers can lead to high repair costs. These issues can be frustrating for owners who expect a trouble-free ownership experience.
- Cost of Ownership: Maintenance and repair costs are higher compared to non-luxury brands. Prospective buyers should budget for potential repairs and regular maintenance to keep the car in top condition.
- Interior Space: The back seats and trunk space are limited, especially in the convertible version. While the 335i is suitable for daily driving and weekend getaways, it may not be the best choice for those needing ample cargo or passenger space.
Interior and Comfort
The BMW 335i’s interior is a blend of luxury and practicality, featuring high-quality materials and thoughtful design. The front seats are well-bolstered, providing excellent support during spirited driving while remaining comfortable for long journeys. Many models come with leather upholstery, which was standard on BMWs when the 335i was released, adding to the car's premium feel. The thigh support extensions are particularly appreciated on long drives, enhancing overall comfort.
The car’s interior layout is driver-focused, with intuitive controls and a clear, straightforward instrument cluster. While some modern BMWs feature digital displays, the 335i’s analog gauges provide essential information without the risk of glare, ensuring visibility in all lighting conditions. The optional iDrive system, available on some models, integrates navigation and entertainment features, although its early versions can be less user-friendly compared to more recent iterations.
Practicality
The practicality of the 335i varies between the coupe, sedan, and convertible models. The coupe and convertible versions offer limited rear-seat space, making them less ideal for carrying multiple passengers regularly. The sedan variant provides more rear-seat room, making it a better option for those needing occasional rear passenger accommodation.
Trunk space is also limited, especially in the convertible due to the storage requirements of the retractable hardtop. The glovebox and door pockets offer some additional storage, but overall, the 335i is best suited for those who prioritize performance and style over practicality.
Conclusion
The BMW 335i with the N54 engine remains a beloved choice among car enthusiasts for its impressive performance and tuning potential. While it comes with some reliability concerns and higher maintenance costs, the driving experience it offers can be well worth the investment. Its blend of luxury, sportiness, and performance makes it a compelling option for those seeking a high-performance used car.
Prospective buyers should be prepared for the associated costs and ensure regular maintenance to keep the car running smoothly. Despite its quirks, the 335i provides a thrilling driving experience and a strong connection to the road, embodying the essence of BMW’s “Ultimate Driving Machine” philosophy. As parts become scarcer and the car ages, its value among collectors and enthusiasts is likely to increase, solidifying its place in automotive history.
Whether you are looking for a project car to modify or a daily driver that delivers an exhilarating experience, the BMW 335i stands out as a compelling option. Just be mindful of its quirks and be prepared to invest in its upkeep to fully enjoy everything this remarkable vehicle has to offer.
BMW M3: Last of the V8
Engine and Performance
The BMW E9X M3 is powered by the S65 engine, a naturally aspirated 4.0-liter V8 that produces 414 horsepower and 295 lb-ft of torque. This high-revving engine, capable of reaching an 8,400 RPM redline, provides a smooth and exhilarating power delivery. The M3 can accelerate from 0 to 60 mph in about 4.1 seconds when equipped with the DCT (Dual-Clutch Transmission), and slightly slower with the six-speed manual.
Key Stats:
- Fuel Economy: 14 mpg (city), 20 mpg (highway)
- 0-60 mph: Approximately 4.1 seconds (DCT)
- Horsepower: 414 hp
- Torque: 295 lb-ft
The S65 engine is celebrated for its responsiveness and thrilling engine note, often compared to high-performance engines found in supercars. It offers a unique driving experience that is becoming rare in modern cars due to the prevalence of turbocharging.
Reliability and Common Issues
While the S65 engine is praised for its performance, it has some common reliability issues. The most notorious are the rod bearing failures and throttle actuator problems. Rod bearings should be replaced as a preventative measure around 60,000 to 80,000 miles to avoid catastrophic engine failure. Throttle actuators, which control the engine's throttle response, tend to fail between 60,000 and 100,000 miles.
Average Maintenance Costs:
- Rod Bearing Replacement: $2,300 to $2,800
- Throttle Actuator Replacement: $1,900 to $2,500
- Valve Cover Gasket Replacement: $900 to $1,500
- Idle Control Valve Replacement: $1,100 to $1,700
- Fuel Breather Valve Replacement: $500 to $1,000
Cost of Ownership
Owning an E9X M3 can be an exhilarating experience, but it's essential to be aware of the associated costs. On average, owners report spending between $2,500 and $4,000 annually on maintenance and repairs. Routine services such as oil changes cost around $150, while more significant repairs like rod bearing replacements can add up.
Fuel economy is another consideration, with the M3 averaging around 14 miles per gallon in city driving and up to 20 mpg on the highway. While the car's performance is impressive, its fuel efficiency may not be ideal for those seeking a more economical daily driver.
Pros and Cons
Pros:
- Performance: The S65 engine offers exceptional performance with a thrilling high-revving experience. The car's precise handling and rear-wheel-drive layout provide a rewarding driving experience.
- Luxury and Sportiness: The E9X M3 strikes a perfect balance between luxury and sportiness, featuring a stylish design and high-quality interior materials. The carbon fiber roof option on the E92 coupe reduces weight and lowers the center of gravity.
- Practicality: Despite being a high-performance sports car, the M3 offers practicality for everyday use with a usable trunk and rear seats.
Cons:
- Reliability Issues: Common problems with rod bearings and throttle actuators can lead to high repair costs. These issues can be frustrating for owners who expect a trouble-free ownership experience.
- Cost of Ownership: Maintenance and repair costs are higher compared to non-luxury brands. Prospective buyers should budget for potential repairs and regular maintenance to keep the car in top condition.
- Fuel Efficiency: The M3's fuel economy is lower than more modern, turbocharged competitors, which may be a concern for those looking for an economical daily driver.
Interior and Comfort
The BMW E9X M3’s interior is a blend of luxury and practicality, featuring high-quality materials and thoughtful design. The front seats are well-bolstered, providing excellent support during spirited driving while remaining comfortable for long journeys. Many models come with leather upholstery, adding to the car's premium feel.
The car’s interior layout is driver-focused, with intuitive controls and a clear, straightforward instrument cluster. The optional iDrive system, available on some models, integrates navigation and entertainment features, although its early versions can be less user-friendly compared to more recent iterations.
Practicality
The practicality of the E9X M3 varies between the coupe, sedan, and convertible models. The coupe and convertible versions offer limited rear-seat space, making them less ideal for carrying multiple passengers regularly. The sedan variant provides more rear-seat room, making it a better option for those needing occasional rear passenger accommodation.
Trunk space is also limited, especially in the convertible due to the storage requirements of the retractable hardtop. The glovebox and door pockets offer some additional storage, but overall, the M3 is best suited for those who prioritize performance and style over practicality.
Conclusion
The BMW E9X M3 remains a beloved choice among car enthusiasts for its impressive performance and engaging driving experience. While it comes with some reliability concerns and higher maintenance costs, the thrill of driving it can be well worth the investment. Its blend of luxury, sportiness, and performance makes it a compelling option for those seeking a high-performance used car.
Prospective buyers should be prepared for the associated costs and ensure regular maintenance to keep the car running smoothly. Despite its quirks, the E9X M3 provides a thrilling driving experience and a strong connection to the road, embodying the essence of BMW’s “Ultimate Driving Machine” philosophy. As parts become scarcer and the car ages, its value among collectors and enthusiasts is likely to increase, solidifying its place in automotive history.
Whether you are looking for a project car to modify or a daily driver that delivers an exhilarating experience, the BMW E9X M3 stands out as a compelling option. Just be mindful of its quirks and be prepared to invest in its upkeep to fully enjoy everything this remarkable vehicle has to offer.
Verdict
When deciding between the BMW 335i and the M3, the choice ultimately depends on your priorities. The 335i, with its turbocharged N54 engine, offers impressive tuning potential and better fuel economy, making it an exciting option for those who enjoy modifying their cars and seek a balance between performance and practicality. However, its reliability issues and maintenance costs can be a drawback.
On the other hand, the M3, with its naturally aspirated S65 V8, delivers a unique, high-revving driving experience that is hard to find in modern cars. The M3's engine, capable of reaching an 8,400 RPM redline, provides a thrilling, responsive power delivery and an exhilarating soundtrack that enthusiasts crave. The "M" experience goes beyond the engine; the M3 benefits from extensive M-specific engineering, including a more rigid chassis, a sport-tuned suspension, and advanced aerodynamics, all designed to enhance handling and performance.
The M3’s precise steering, rear-wheel-drive layout, and perfectly balanced weight distribution result in superior handling and an engaging driving experience, whether on twisty roads or the track. The E92 coupe's carbon fiber roof lowers the center of gravity, improving stability and agility. Additionally, the M3's interior, with high-quality materials and supportive seats, offers a driver-focused environment that enhances the connection between car and driver.
While the M3 also comes with significant maintenance costs and potential reliability concerns, its raw performance, engaging driving dynamics, and the unparalleled "M" experience make it the better buy for enthusiasts seeking an authentic, high-performance sports car. The M3 is not just a car; it's an embodiment of BMW's "Ultimate Driving Machine" philosophy, making it a standout choice for those who value driving pleasure above all else.