Mercedes GLA 45 AMG: Evolution Through the Years – Spotting the Differences

The Mercedes Gla 45 Amg, a vehicle that blurs the lines between a practical SUV and a thrilling hot hatch, has captivated enthusiasts since its inception. Debuting as a 2015 model, it immediately set a benchmark with its potent 2.0-liter turbocharged engine, then the most powerful of its kind in production. Often debated and compared, the GLA 45 AMG has seen subtle yet significant changes across its model years. Having personally owned both a 2015 and a 2017 model, I’ve gained firsthand experience with these nuances, providing a unique perspective on the evolution of this dynamic machine. This article will delve into the key distinctions between the GLA 45 AMG models from its initial 2015 release up to 2019, offering a detailed comparison for those looking to understand the model’s progression.

Understanding the GLA 45 AMG Evolution

To effectively illustrate the changes, it’s helpful to categorize the GLA 45 AMG model years into distinct phases, reflecting their developmental stages:

• GLA 1.0 – 2015: The pioneering model, establishing the foundation.
• GLA 1.5 – 2016/2017: Refinements and upgrades over the original.
• GLA 2.0 – 2018/2019: The facelifted generation with visual and feature enhancements.
• GLA 3.0 – 2020/2021+: The completely redesigned new generation, representing a significant leap forward (though not directly compared in this article, as the focus remains on the pre-2020 models).

While a comprehensive facelift arrived in 2018, the 2016 and 2017 models incorporated enough notable updates to differentiate them from the 2015 original, justifying the “1.5” designation and separating the 2015-2017 range into these sub-generations. Let’s explore the mechanical, exterior, and interior variations that define these model years up to 2019.

Mechanical Upgrades and Performance Enhancements

The heart of the GLA 45 AMG, its engine, saw an early performance boost:

• Power Output: The 2015 model boasted 355 horsepower and 332 lb-ft of torque. From 2016 onwards, power was increased to 375 horsepower and 350 lb-ft of torque, all from the same robust M133 engine. This power bump translated to a noticeable improvement in acceleration.
• Acceleration: The initial 2015 GLA 45 AMG was advertised with a 0-60 mph time of 4.8 seconds. Real-world testing often mirrored this, with consistent 4.9-second times achievable even without launch control. The increased power in the 2016-2019 models shaved half a second off this time, bringing the official 0-60 mph sprint down to 4.3 seconds. This improvement, while not massive on paper, is definitely perceptible behind the wheel.
• Driving Modes: Another key mechanical update in the 2016+ models was the introduction of additional driving modes. While the 2015 offered Comfort (C), Sport (S), and Manual (M) modes, the 2016 and later versions added Sport+ and, with the optional Dynamic Plus package, the even more aggressive RACE mode. Sport+ sharpens throttle response, firms up the suspension (if equipped with adaptive dampers), and adjusts transmission mapping for a more dynamic driving experience. RACE mode takes this a step further, optimizing all systems for maximum performance on track.

Alt text: Close-up comparison of the side badges on GLA 45 AMG models, showing “AMG” under the “TURBO” script on a 2015 model versus “4MATIC” on a 2016 or newer model.

• Transmission Refinements: Perhaps one of the most significant mechanical differentiators lies in the transmission. The 2015 GLA 45 AMG utilized transmission code 15, while the 2016-2019 models featured an updated transmission with code 16. This wasn’t just a code change; it represented a substantial remapping of the transmission, particularly in the lower gears. The 2015 models were sometimes criticized for being slightly jerky or laggy when starting from a standstill, especially in low gear. While owners often adapted to this characteristic – some even jokingly referred to developing “45 foot” to manage the throttle response – it could be noticeable, especially to those unfamiliar with dual-clutch transmissions or high-performance vehicles. The updated transmission in the 2016+ models addressed this issue, offering smoother and more responsive low-speed behavior and a more immediate “grab” from a stop.

• Exhaust System Options: Sport vs. Performance: The exhaust system is a crucial element in the AMG experience, and the GLA 45 AMG offered two distinct options: the standard AMG Sport Exhaust system and the optional AMG Performance Exhaust system. Mechanically, the primary difference lies in the resonators. The Sport system incorporates two resonators, one in the front and one in the rear section of the mid-pipe, leading to a more muffled sound. In contrast, the Performance system utilizes only a single, smaller resonator at the front of the mid-pipe, resulting in a significantly louder and more aggressive exhaust note. Electrically, the Performance Exhaust adds a button on the dashboard that activates a sound generator, artificially amplifying engine noise within the cabin for an even more immersive auditory experience. In terms of sound characteristics, the Sport exhaust produces a deeper, more subdued burble, especially at idle and during revving in park or neutral. The Performance exhaust, however, delivers a much louder, snappier, and crackly tone. Under load, upshifts with the Performance exhaust are characterized by sharp, gunshot-like cracks, while deceleration and downshifts are accompanied by pronounced crackles and pops. While the Sport system still offers a pleasant pop on upshifts and makes it easier to induce burbles on deceleration, the Performance exhaust is undeniably the choice for those who prioritize a loud and dramatic sound experience. The relatively modest factory cost for the Performance Exhaust made it a highly desirable option.

Alt text: Interior view of a 2017 Mercedes GLA 45 AMG dashboard, focusing on the button for the AMG Performance Exhaust system, indicating the option for driver-controlled exhaust sound enhancement.

• AMG Dynamic Plus Package: For drivers seeking the ultimate performance edge, the AMG Dynamic Plus Package was available, albeit somewhat rare. This package included several performance-enhancing features:
  • 2-Stage Dampening Sport Suspension: This upgraded suspension system offered adjustable damping, allowing for a firmer and more controlled ride, especially beneficial for track driving.
  • Increased Top Speed: The Dynamic Plus package raised the electronically limited top speed, allowing for higher maximum velocity where permitted.
  • RACE Mode: As mentioned earlier, this package unlocked the most aggressive RACE driving mode, optimizing the car for track use with ultra-responsive settings.
  • Limited Slip Front Differential (LSD): Crucially, the Dynamic Plus package was the only way to obtain a mechanical limited-slip front differential directly from the factory. The LSD significantly improves traction and handling, particularly during hard cornering and acceleration, making it a highly sought-after feature for performance enthusiasts and track-day participants. While the sport suspension component could be ordered as a standalone option, the LSD remained exclusive to the Dynamic Plus Package.

Exterior Styling and Design Changes

The exterior of the GLA 45 AMG evolved gradually, with some subtle tweaks before the more significant 2018 facelift:

• Subtle Pre-Facelift Differences (2015-2017): The most easily discernible exterior changes between the 2015 and 2016-2017 models are found in the badging. On the side fender badge, 2015 models feature “AMG” script beneath the “TURBO” lettering, while 2016 and later models replace “AMG” with “4MATIC,” reflecting the standard all-wheel-drive system. Additionally, the rear badging layout shifted. In 2015, “GLA 45” was positioned on the left side of the tailgate, and the AMG badge on the right. From 2016 onward, these positions were reversed, with the AMG badge moving to the left.

• 2018/2019 Facelift: The 2018 and 2019 model years brought a true facelift, introducing more substantial visual updates. The front fascia received a more aggressive design with a revised front diffuser and larger, more pronounced air vents, enhancing the car’s sporty stance. The headlights were also updated with a new LED design. At the rear, the diffuser was reshaped, although somewhat controversially, it became visually smaller than the pre-facelift version and incorporated more plastic cladding around the exhaust outlets, which were previously more integrated into the diffuser itself. One of the most praised aspects of the facelift was the taillights, which adopted a striking “stardust” or “crystal” appearance for the twin horizontal running light strips, adding a touch of sophistication and modernity. These model years also saw the introduction of a new multi-spoke 19-inch wheel design, further refreshing the GLA 45 AMG’s look.

Alt text: Front three-quarter view of a 2018 or 2019 Mercedes GLA 45 AMG, emphasizing the redesigned front grille, headlights, and bumper with larger air intakes, characteristic of the facelifted model.

• Optional Aero Wing: Across all GLA 45 AMG model years, an optional rear aerodynamic wing was available. This wing is a matter of personal taste, but it undeniably amplifies the car’s sporty and race-inspired aesthetic. Choosing the wing creates a more overtly performance-oriented look, while omitting it results in a slightly more understated or “sleeper” appearance. Factory-installed wings are typically permanently mounted, requiring bodywork to remove cleanly.

• AMG Carbon Fiber Exterior Package: For those seeking an even more exclusive and high-performance appearance, the AMG Carbon Fiber Exterior Package was offered as a factory option. This package, quite expensive and often requiring the Night Package as a prerequisite, added carbon fiber elements to the mirror caps, front splitter, side trim inserts, and rear diffuser. The carbon fiber weave used in this package is of very high quality, adding a premium and sporty touch that is universally admired by car enthusiasts. Due to its cost, it was more frequently seen on custom-ordered vehicles rather than dealer-stock showroom models.

• Panoramic Sunroof: A popular standalone option for the GLA 45 AMG was the panoramic sunroof. This feature replaced almost the entire roof panel with glass, dramatically opening up the cabin to natural light and offering expansive views. While desirable for cruising in pleasant weather and for photography, the panoramic sunroof can be less practical in colder climates or at high speeds due to potential heat loss or wind noise. Opting out of the sunroof provides slightly increased headroom due to the standard roof’s more contoured shape and also results in a painted roof with two body styling lines that flow seamlessly from the hood to the front of the car, contributing to a sleeker roofline.

Interior Technology and Refinements

The interior of the GLA 45 AMG also saw notable advancements, particularly in technology:

• COMAND Infotainment Systems: NTG 4.5 vs. NTG 5/5.5: A significant interior upgrade occurred with the infotainment system. The 2015 GLA 45 AMG was equipped with the older COMAND NTG 4.5 system. By 2016, this was replaced with the much more advanced NTG 5/5.5 system. NTG 4.5, even at the time, felt somewhat dated, and by modern standards, it is considerably less sophisticated. NTG 5/5.5, while now also aging, represented a major leap forward. For tech-savvy buyers, the NTG 5/5.5 system is a clear preference. It introduced features like an AMG-specific engine data display showing live horsepower and torque output, vehicle telemetry data for performance monitoring, improved navigation with enhanced graphics and routing, and a favorites menu for quick access to frequently used functions. The screen quality itself also saw a substantial improvement with NTG 5/5.5, offering higher resolution and better clarity.

• Apple CarPlay and Android Auto Integration: A key feature introduced with the NTG 5/5.5 system in 2016 was Apple CarPlay and Android Auto compatibility. This allowed for seamless smartphone integration, mirroring phone interfaces on the car’s screen for navigation, music, calls, and messaging. However, using CarPlay and Android Auto with the COMAND rotary knob and buttons can feel somewhat less intuitive than touchscreen-based systems, as these interfaces are primarily designed for touch input.

• AMG Performance Seats: The optional AMG Performance Seats, manufactured by Recaro, are a highly desirable interior upgrade. These seats were available in Dinamica microfiber/alcantara, black leather, or AMG red-cut leather upholstery. They offer significantly enhanced lateral support compared to the standard comfort seats, “hugging” occupants in place during spirited driving, rather than the feeling of sitting “on top” of the seat. In addition to standard seat adjustments, the Performance Seats also include electronic side bolster adjustments, allowing drivers to customize the level of lateral support. The headrest design is also different, with a less pronounced forward slope compared to the comfort seats, which some drivers found more comfortable, especially on longer journeys. The Recaro seats also contribute to a more sporty and focused interior aesthetic. Many owners who initially didn’t prioritize these seats found them to be indispensable after experiencing their benefits.

• MB-Tex Top Stitched Dash: Often paired with the leather upholstery package, the MB-Tex top-stitched dashboard option added a luxurious touch to the interior. This option featured a leather-like material with contrasting stitching, available in white or red, across the upper dashboard. It elevates the perceived quality and premium feel of the cabin significantly. A minor drawback noted by some owners is potential glare from the stitching on the windshield in bright sunlight, but this is generally not a major issue.

• AMG Performance Steering Wheel: For the ultimate AMG driving experience, the AMG Performance Steering Wheel was an essential option. This steering wheel features Dinamica microfiber inserts in the grip areas for enhanced tactile feel and grip, a 12 o’clock marker band (often in silver), and an AMG badge at the bottom of the wheel. The side inserts are ergonomically molded to fit comfortably in the driver’s hands. The AMG Performance Steering Wheel adds a distinctly sporty and premium ambiance to the interior, largely due to the prominent AMG badge constantly in the driver’s view. All GLA 45 AMG models are equipped with paddle shifters, and the design of these paddles was subtly refined in the 2016+ models compared to the 2015 version.

• Ambient Lighting Package: The ambient lighting package, allowing for customizable interior lighting colors, was initially offered as a relatively inexpensive standalone option. Later, it became bundled into more comprehensive premium packages. Even without the package, all GLA 45 AMGs feature ambient lighting in the same locations, but in a fixed orange color. The optional package unlocks a selection of 12 different colors, allowing drivers to personalize the cabin ambiance. While the novelty of changing colors might wear off over time, it remains a frequently used feature, especially for nighttime driving.

• Auto-Dimming Mirrors: The Convenience Package included auto-dimming rearview and driver’s side exterior mirrors. This feature automatically dims the mirrors in response to bright headlights from behind, significantly reducing glare during nighttime driving. It’s a highly practical and convenient feature that is easy to become accustomed to, making traditional manual dimming mirrors feel somewhat rudimentary by comparison. The auto-dimming rearview mirror can be retrofitted to earlier models, highlighting its desirability.

GLA 45 AMG in the Competitive Landscape

In the US market, the GLA 45 AMG occupies a somewhat unique niche, lacking direct competitors in its precise blend of size, performance, and price point. It’s sometimes referred to as the “budget AMG,” or conversely, as a “rich man’s WRX/STI,” reflecting its position relative to both mainstream performance cars and higher-tier AMG models.

• Vs. Subaru WRX/STI: In terms of outright performance, the stock GLA 45 AMG is significantly quicker than a standard WRX and comfortably outpaces a stock STI in acceleration. Interior refinement is also substantially superior in the Mercedes.

• Vs. Volkswagen Golf R: The Golf R is perhaps the closest competitor in terms of hatchback performance. However, even comparing a 2015 GLA 45 AMG to a later 2019 Golf R, the GLA 45 AMG demonstrates superior acceleration.

• Vs. Audi RS3: While the RS3 is a sedan rather than an SUV/hatchback, it’s arguably the closest competitor in terms of engine performance and overall character within the Audi range. On the highway, the two are closely matched in acceleration, although the RS3 may have a slight edge in sustained high-speed runs.

• Vs. Mercedes-AMG C43: The C43 AMG sedan is another model that might be considered by buyers looking at GLA 45 AMGs, particularly given similar price points. The C43 boasts a more luxurious interior and superior highway cruising performance, but they represent different vehicle types overall.

Conclusion: Finding Your Ideal GLA 45 AMG

The “sweet spot” in the GLA 45 AMG lineup arguably lies within the 2017-2019 model years. These models benefit from the mechanical refinements introduced in 2016, while retaining the hatchback-like spirit before the 2020 redesign shifted the GLA towards a more traditional SUV profile. However, the 2015 models remain appealing, particularly given their more accessible price point in the used market. For those new to the AMG experience, a 2015 GLA 45 AMG offers a fantastic entry point without sacrificing core AMG performance attributes.

Ultimately, the best GLA 45 AMG for any individual depends on their priorities and budget. Each model year offers a unique blend of features and characteristics. Whether you prioritize the raw, early character of the 2015, the refined performance of the 2017-2019 models, or the advanced technology of the latest generation, the Mercedes GLA 45 AMG delivers a thrilling and versatile driving experience.

Have fun exploring the options and finding your perfect AMG!

• AMGOwner