BMW 5 Series (E34) vs. BMW 5 Series (E39)

Stock Motor

The BMW 5 Series is an iconic and beloved lineup of luxury sedans known for their performance and sophistication. In this article, we will compare the stock motors of two significant generations: the BMW 5 Series (E34) and the BMW 5 Series (E39). These models represent different eras in BMW's history and showcase the evolution of the 5 Series' stock motors over time.

BMW 5 Series (E34):

The BMW 5 Series (E34) was produced from 1988 to 1996 and made a significant impact in the midsize luxury sedan segment. The stock motors in the E34 generation were available in various configurations. The base model, the 525i, featured a 2.5-liter inline-six engine producing around 168 horsepower and 164 lb-ft of torque. The 535i, a more powerful variant, boasted a 3.5-liter inline-six engine generating approximately 208 horsepower and 225 lb-ft of torque. These engines delivered a smooth power delivery, excellent refinement, and a balanced driving experience, making the E34 a popular choice among BMW enthusiasts.

BMW 5 Series (E39):

The BMW 5 Series (E39) was produced from 1995 to 2003 and represented a significant leap forward in terms of design and technology. The stock motors in the E39 generation offered enhanced performance and advancements compared to its predecessor. The base 528i featured a 2.8-liter inline-six engine producing around 190 horsepower and 206 lb-ft of torque, providing brisk acceleration and a refined driving experience. The 540i, the high-performance variant, boasted a 4.4-liter V8 engine delivering approximately 282 horsepower and 324 lb-ft of torque, offering impressive power and thrilling performance.

Engine Technology and Enhancements:

The E39 generation showcased advancements in engine technology, including improved fuel injection systems, variable valve timing, and enhanced engine management systems. These enhancements resulted in increased power output, improved fuel efficiency, and reduced emissions compared to the E34 generation. The E39's stock motors offered a refined power delivery, smooth acceleration, and a balance between performance and comfort.

Transmission Options:

Both the E34 and E39 generations of the BMW 5 Series provided a range of transmission options to suit driver preferences. The E34 offered a choice between a five-speed manual transmission and a four-speed automatic transmission. The E39 continued this tradition but also introduced a six-speed manual transmission option, providing improved gear ratios and a more engaging driving experience. The availability of the six-speed manual transmission in the E39 enhanced the overall performance and driver involvement.

Driving Experience and Performance:

The differences in stock motors between the E34 and E39 generations translate into distinct driving experiences. The E34 offered a refined and engaging driving experience, with responsive handling, precise steering, and a smooth power delivery. The E39, with its more advanced engine technology and increased power output, provided even more exhilaration and dynamic performance, particularly in the higher-performance variants. The E39's stock motors delivered impressive acceleration, refined handling, and a sense of confidence on the road.

Legacy and Collectibility:

Both the E34 and E39 generations of the BMW 5 Series are considered iconic and have a strong following among automotive enthusiasts. The E34 is appreciated for its timeless design, balanced performance, and historical significance as a quintessential BMW. The E39, with its blend of luxury and performance, is regarded as one of the best 5 Series generations ever produced. Both generations have gained collectibility and are highly valued among BMW enthusiasts.

The stock motors of the BMW 5 Series (E34) and BMW 5 Series (E39) exemplify the engineering excellence and driving pleasure that define the 5 Series lineage. While the E34 generation showcased a refined and balanced driving experience, the E39 generation took it a step further with enhanced power, advanced engine technology, and improved overall performance. Whether you appreciate the timeless charm of the E34 or the dynamic performance of the E39, both generations of the BMW 5 Series offer a blend of luxury, performance, and driving pleasure that continues to captivate automotive enthusiasts.

Tuning Ability

BMW 5 Series E34:

Upgraded Intake:

Dinan High-Flow Air Mass Meter

K&N Performance Air Filter

AC Schnitzer Cold Air Intake Kit

Enhanced Exhaust Systems:

Supersprint Stainless Steel Exhaust System

Remus Sport Exhaust

Borla Cat-Back Exhaust System

Forced Induction Upgrades:

Dinan Turbocharger Upgrade

Active Autowerke Supercharger Kit

VF Engineering Twin Screw Supercharger

Fuel Management Enhancements:

Dinan Performance Engine Software

Turner Motorsport Performance Chips

Powerchip ECU Tuning

Ignition Options:

NGK Iridium IX Spark Plugs

Bosch Ignition Coils

MSD Ignition Control Module

BMW 5 Series E39:

Upgraded Intake:

aFe Magnum Force Intake System

Dinan High-Flow Air Mass Meter

BMC High-Performance Air Filter

Enhanced Exhaust Systems:

Eisenmann Race Exhaust System

Supersprint Sport Exhaust

Borla Cat-Back Exhaust System

Forced Induction Upgrades:

Dinan Supercharger Kit

VF Engineering Vortech Supercharger System

RMS Stage 2 Turbocharger Kit

Fuel Management Enhancements:

Dinan Performance Engine Software

Turner Motorsport Performance Chips

Powerchip ECU Tuning

Ignition Options:

NGK Iridium IX Spark Plugs

Bosch Ignition Coils

MSD Ignition Control Module

Comparison and Critique:

Forced Induction Upgrades: Both the E34 and E39 5 Series offer significant potential for forced induction upgrades, with supercharger and turbocharger options providing substantial power gains and improved performance.

Exhaust Systems: Both models present a variety of exhaust systems, each providing unique sound and performance characteristics, catering to individual preferences.

Fuel Management: Advanced engine management systems allow for precise fuel management and tuning capabilities, ensuring optimal engine performance and reliability for both vehicles.

Ignition Options: Upgrading ignition components enhances spark performance and engine efficiency, contributing to improved power and throttle response for both generations.

Tuning Community: Both the E34 and E39 5 Series have vibrant aftermarket support for tuning upgrades, offering a wide range of products and solutions for customization and performance enhancement.

Suspension

Technology and Engineering:

E34 (1987-1996):

The E34 featured a traditional suspension setup, which consisted of a front MacPherson strut and a rear multi-link system.

While the E34's suspension provided a smooth and comfortable ride, it was more oriented towards luxury and daily commuting rather than aggressive driving or track performance.

E39 (1995-2003):

The E39, a successor to the E34, came with a more advanced suspension system that reflected BMW's commitment to dynamic driving characteristics.

BMW introduced the "Double Wishbone" front suspension, also known as the "Z-axle," which enhanced steering precision and reduced torque steer.

At the rear, the E39 featured a multi-link setup similar to its predecessor, but with improvements to enhance stability and handling.

Handling and Performance:

E34:

The E34's suspension, though comfortable, had a noticeable amount of body roll during cornering and spirited driving.

Enthusiasts appreciated the smoothness and refined feel of the E34's suspension, but it lacked the sporty edge found in later 5 Series models.

E39:

The E39's advanced suspension components significantly improved the car's handling and performance capabilities.

With reduced body roll and enhanced stability, the E39 offered a more engaging and dynamic driving experience, making it a favorite among driving enthusiasts.

Adaptive Suspension (Optional):

E34:

The E34 did not offer an adaptive suspension system during its production run, limiting the driver's ability to customize the ride and handling characteristics.

E39:

BMW introduced the optional "Electronic Damper Control" (EDC) system for the E39, which allowed drivers to adjust the suspension's firmness electronically.

This feature gave drivers the flexibility to switch between comfort and sport modes, tailoring the suspension to suit their preferences and driving conditions.

Ride Comfort and Road Noise:

E34:

The E34's traditional suspension provided a comfortable and plush ride, ideal for long-distance cruising and daily commutes.

However, road imperfections and noise were more noticeable inside the cabin compared to modern suspension systems.

E39:

While the E39's suspension improved handling and performance, BMW managed to retain a high level of ride comfort, striking a balance between sportiness and luxury.

The E39's suspension system minimized road noise and vibrations, ensuring a quieter and more refined driving experience.

Interior

Design and Aesthetics:

E34 (1987-1996):

The E34 boasted a classic and elegant interior design with a driver-focused cockpit layout.

High-quality materials, including premium leather upholstery and genuine wood trim, exuded luxury and sophistication.

The dashboard featured a straightforward, functional design, showcasing analog gauges and a simple center console.

E39 (1995-2003):

The E39 introduced a more modern and refined interior design, emphasizing a sense of spaciousness and comfort.

Soft-touch materials were extensively used throughout the cabin, providing a plush and inviting atmosphere.

The dashboard featured a more contemporary layout, integrating a digital information display and a user-friendly center console.

Technology and Infotainment:

E34:

The E34's technology was ahead of its time during the late '80s and early '90s, but compared to modern standards, it lacked the advanced features found in later models.

Basic amenities included a cassette player, optional CD changer, and manual climate control.

E39:

The E39 marked a significant leap in terms of technology and infotainment.

It introduced features like the iDrive system (optional), which offered centralized control over various functions, including navigation, audio, and climate control.

The E39 also offered a premium sound system, upgraded CD changers, and optional GPS navigation.

Comfort and Seating:

E34:

The E34 provided comfortable seating, especially in the front, with ample headroom and legroom for most occupants.

Rear seat space was adequate, but it might feel a bit tight for taller passengers during longer journeys.

E39:

The E39 improved upon the E34's comfort levels, offering more supportive and ergonomic seats.

Rear seat space was more generous, providing increased legroom and comfort for passengers, making it ideal for extended trips.

Driver Assistance and Safety: E34:

The E34 featured standard safety equipment for its time, such as airbags, anti-lock brakes (ABS), and stability control in later models.

Advanced driver assistance technologies were not as prevalent in this generation.

E39:

The E39 showcased BMW's commitment to safety, incorporating more advanced driver assistance features.

Some models offered optional features like adaptive cruise control, parking sensors, and dynamic stability control, setting new benchmarks in safety standards.

Storage and Cargo Space:

E34:

The E34 provided a reasonable amount of storage options, including door pockets, a center armrest compartment, and a glovebox.

The trunk offered sufficient cargo space, but it had a narrower opening compared to modern sedans.

E39:

The E39 offered enhanced storage solutions, with more practical compartments and cupholders, adding to passenger convenience.

The trunk space was more versatile, with a wider opening and foldable rear seats, allowing for additional cargo capacity when needed.

The interior of the BMW 5 Series has continuously evolved to meet the expectations of discerning drivers and passengers. The E34 presented a classic and luxurious cabin, embracing the timeless appeal of BMW's design ethos. On the other hand, the E39 showcased technological advancements and an increased focus on comfort and convenience.