The 2015 Mercedes-Benz CLA Class marked a significant entry point into the luxury sedan market, offering a blend of style, performance, and Mercedes-Benz prestige in a compact package. This article delves into the nuances of the 2015 Mercedes-Benz CLA Class, particularly focusing on the driving dynamics and engine options that set it apart. We’ll explore both the CLA 250 and the high-performance CLA 45 AMG, providing a comprehensive overview for potential buyers and automotive enthusiasts.
The CLA 250, the base model, is equipped with a turbocharged four-cylinder engine that delivers ample low-end torque. This power characteristic, while beneficial for everyday driving, can sometimes manifest as noticeable shifts in the lower speed ranges. The seven-speed dual-clutch transmission in the CLA 250 prioritizes fuel efficiency, rapidly upshifting to achieve optimal gas mileage. Drivers have the option to shift from the Eco mode to Sport or Manual modes, which sharpens throttle response and reveals a degree of turbo lag. Above 30 mph, the gear changes become smoother, seamlessly integrating with the vehicle’s momentum. However, demanding quick downshifts at highway speeds can introduce a slight delay.
The CLA 45 AMG variant elevates the performance to a different echelon. Its enhanced four-cylinder engine, featuring a twin-scroll turbocharger, boasts increased boost pressure and a reduced compression ratio, resulting in exhilarating power output. Initially reported at 4.6 seconds, the 0-60 mph acceleration time for the CLA 45 AMG was subsequently revised to an impressive 4.5 seconds. The engine’s redline is also raised by 200 rpm compared to the CLA 250, reaching 6,700 rpm. The torque curve is designed to peak later and sustain for a longer duration. An optional active-exhaust system further enhances the auditory experience, employing a butterfly flap to modulate the exhaust note from a subtle hum during normal driving to an aggressive roar at full throttle.
Both the CLA 250 and 2015 Mercedes-Benz CLA 45 AMG utilize a seven-speed dual-clutch transmission. However, the AMG model receives a more robust version to accommodate its higher torque output. The CLA 250 features drive mode selection via a column shifter, while the CLA 45 AMG employs a console-mounted shift lever. Both models offer steering-wheel paddles that enable a 30-second manual-shift mode, after which the transmission reverts to automatic operation.
The shift characteristics are markedly different between the two models. The CLA 45 AMG offers driver-selectable modes – Comfort, Sport, and Manual – coupled with rev-matching for quicker and cleaner gear changes. In manual mode, the driver assumes full control, aligning with AMG’s performance-oriented philosophy.
A standard feature across all 2015 Mercedes-Benz CLA Class models is the stop/start system. While contributing to fuel efficiency, it can introduce noticeable vibrations through the drivetrain during engine shutoff and restart cycles, particularly at brief pauses. The all-wheel-drive system, available on certain CLA 250 models and standard on the CLA 45 AMG, dynamically distributes torque from nearly 100 percent front-wheel drive to a 50/50 front/rear split via a multi-disc clutch. This system contributes to smoother launches and gear changes, especially compared to the front-wheel-drive configuration.
The CLA 250 largely adopts a mono-spec configuration in terms of chassis setup. All versions are equipped with electric power steering and, in the U.S. market, come standard with the “sport” suspension, featuring lowered ride height and sport-tuned springs. 17-inch run-flat tires are standard, with optional upgrades to 18-inch wheels, including choices for summer tires and perforated brake discs. For ride comfort, opting for the 17-inch wheels is advisable, as the 18-inch wheels can exacerbate the already firm sport-tuned ride.
The handling of the 2015 Mercedes-Benz CLA Class is characterized by its assertive and almost defiant nature in corners, contrasting with the traditional Mercedes emphasis on ride comfort. The Direct Steer system incorporates a variable steering rack that increases steering ratio and effort as the steering wheel moves off-center. This results in a weighty steering feel and quick turn-in response. While electric power steering numbness is present to some extent, the all-wheel-drive version of the CLA 250 offers superior power delivery and dynamic handling. There isn’t a dedicated sport mode to alter steering feel in the CLA 250, which aligns with its broader appeal to a wider range of Mercedes-Benz customers.
In the 2015 Mercedes-Benz CLA 45 AMG, the suspension, steering, and braking systems undergo specific AMG tuning, resulting in even flatter cornering and enhanced steering feedback. The electric power steering in the AMG model features a fixed ratio, though steering weight still varies with vehicle speed. The suspension is revised with three links per front wheel and stiffer bearings to manage increased torque and traction loads. The rear suspension utilizes a four-link design with coil springs and a body-mounted subframe. Thicker anti-roll bars are fitted both front and rear. The CLA 45 AMG rides approximately an inch lower and has a rear track that is nearly half an inch wider than the CLA 250.
The CLA 45 AMG comes standard with 18-inch wheels fitted with performance tires, with optional 19-inch wheels available for even greater grip. Upgraded AMG brakes are managed by the ESP system’s Sport mode, which emulates torque vectoring to further enhance handling prowess. The result is exceptional grip and rapid acceleration, combined with neutral handling that masks its front-wheel-drive underpinnings. The CLA 45 AMG features AMG’s Racestart launch control, maximizing the dual-clutch transmission’s capabilities for optimal launches. Understeer is effectively mitigated by the all-wheel-drive system, and any potential torque steer is neutralized by the electric steering. Unlike the CLA 250, the CLA 45 AMG provides more tactile feedback from the road surface, contributing to a more engaging driving experience. It stands out as a well-engineered and exhilarating compact performance sedan within the 2015 Mercedes-Benz CLA Class lineup.
In conclusion, the 2015 Mercedes-Benz CLA Class offers two distinct personalities. The CLA 250 provides a stylish and efficient entry into the Mercedes-Benz brand, suitable for daily driving with a touch of sporty flair. The CLA 45 AMG, on the other hand, transforms the CLA into a potent performance machine, delivering thrilling acceleration and handling for driving enthusiasts. Both models showcase Mercedes-Benz’s commitment to quality and innovation, catering to different preferences within the compact luxury segment.
