2023 Mercedes-Benz CLS450

Introduction

The 2023 Mercedes-Benz CLS450 is a sleek and sporty four-door coupe that combines performance, luxury, and style. Under the hood lies a powerful inline-six engine that delivers impressive horsepower and torque. The CLS450 comes standard with a nine-speed automatic transmission that ensures smooth and responsive gear changes. Despite its renowned reputation, the CLS450 has encountered a few notable issues in its major components.

Engine

3.0L Inline-Six Engine

• Intake Valve Deposits: Over time, carbon deposits can accumulate on the intake valves, leading to reduced engine performance and fuel efficiency.
• Description/Symptoms: Reduced power, hesitation upon acceleration, increased fuel consumption.
• Solution: Cleaning or replacing the intake valves and associated components.
• Estimated Cost to Fix: $1,000 - $2,500+
• Recalls: None Found

Transmission

9-Speed Automatic Transmission

• Shift Hesitation: In some cases, the transmission may hesitate or delay in shifting gears.
• Description/Symptoms: Jerking or hesitation during acceleration or gear changes, especially at low speeds.
• Solution: Reconfiguring the transmission control module (TCM) or replacing the TCM and transmission solenoids.
• Estimated Cost to Fix: $500 - $2,000+
• Recalls: None Found

Suspension

Air Suspension

• Air Spring Leaks: The air springs in the suspension system can develop leaks, leading to reduced ride height and handling issues.
• Description/Symptoms: Vehicle sagging on one or more corners, uneven ride height, reduced stability.
• Solution: Replacing the leaking air spring or the entire air suspension module.
• Estimated Cost to Fix: $1,500 - $4,000+
• Recalls: None Found

Electrical

Power Seat Module Failure: The power seat module responsible for seat adjustments can fail, causing the seat to malfunction or become inoperable.

• Description/Symptoms: Inability to adjust the seat position, intermittent seat movement, seat heating or ventilation issues.
• Solution: Replacing the power seat module.
• Estimated Cost to Fix: $500 - $1,500+
• Recalls: None Found

Exterior

Headlight Condensation: The headlights on some models may experience condensation buildup due to poor sealing or ventilation.

• Description/Symptoms: Foggy or cloudy headlights, reduced visibility at night.
• Solution: Inspecting and replacing the headlight assembly or improving ventilation.
• Estimated Cost to Fix: $300 - $1,200+
• Recalls: None Found

Interior

Ambient Lighting Intermittence: The ambient lighting system can experience intermittent failures, causing the lights to flicker or shut off.

• Description/Symptoms: Dimming or flickering of ambient lights, complete loss of illumination.
• Solution: Replacing the faulty ambient lighting module or wiring harness.
• Estimated Cost to Fix: $400 - $800+
• Recalls: None Found

Summary

The 2023 Mercedes-Benz CLS450 exhibits a few common issues that affect its engine, transmission, suspension, electrical, exterior, and interior components. While most of these issues are relatively minor and inexpensive to fix, some, such as air suspension leaks or transmission hesitations, can be more costly and inconvenient. Overall, the CLS450 remains a desirable vehicle for its performance, style, and luxury, but potential buyers should be aware of these potential issues before making a purchase decision.