2009 Mercedes-Benz CLK-Class: What's New, Specs & Features
Last updated August 4, 2026
The main change for the 2009 Mercedes-Benz CLK-Class is that heated front seats become standard across the lineup. Otherwise, this is a lightly updated final-year model with no major changes to its engines, transmission, styling, or chassis.
About the 2009 Mercedes-Benz CLK-Class
2nd generation (2003-2009), final model year before Mercedes replaced the CLK with the two-door E-Class.
The 2009 CLK-Class is Mercedes-Benz’s stylish four-seat luxury two-door, sold as either a coupe or a soft-top convertible. Mercedes markets it as a mix of timeless design, strong performance, and everyday comfort rather than as a stripped-down sports car. Its appeal is the elegant shape, rich leather-and-wood cabin, smooth automatic transmission, and relaxed high-speed driving feel, with the CLK550 adding a more muscular V8-backed personality for shoppers who want the same format with more punch.
The CLK 350 is the refined everyday model, pairing a 268-hp V6 with leather, wood trim, and a comfort-focused cabin. The CLK 550 adds a 382-hp V8, sport suspension, stronger brakes, shift paddles, and more aggressive body styling. Both are four-seat, rear-wheel-drive luxury two-doors sold as coupes and convertibles.
What changed, by category
2009 Mercedes-Benz CLK-Class specs and features by trim
| Feature | ||
|---|---|---|
| Engine | V6, 3.5 Liter | V8, 5.5 Liter |
| Transmission | Auto, 7-Spd Touch Shift | Auto, 7-Spd Touch Shift |
| Drivetrain | RWD | RWD |
| Fuel Type | Gas | Gas |
| MPG City | 17 mpg | 15 mpg |
| MPG Highway | 25 mpg | 21–22 mpg |
| Horsepower | 268 hp | 382 hp |
| Torque | 258 lb-ft | 391 lb-ft |
| Trunk/Cargo | 8.6–10.4 cu-ft | 8.6–10.4 cu-ft |
| Rear Legroom | 30.4–33 in | 30.4–33 in |
| Seats | 4 | 4 |
| Doors | 2 | 2 |
| Alarm System | ||
| Alloy Wheels | ||
| Auto-Dimming Exterior Mirrors | ||
| Fog Lights | ||
| Power Moonroof | ||
| Rear Spoiler | ||
| Bluetooth | ||
| Navigation System | ||
| Premium Audio | ||
| Auto-Dimming Interior Mirror | ||
| Dual-Zone Climate Control | ||
| Heated Front Seats | ||
| Integrated Garage Door Opener | ||
| Leather Seats | ||
| Proximity Keyless Entry | ||
| Remote Start | ||
| Ventilated Front Seats | ||
Frequently asked questions
What changed on the 2009 Mercedes-Benz CLK-Class?
Heated front seats become standard on every 2009 CLK-Class. The engines, 7-speed automatic transmission, rear-wheel-drive layout, styling, and chassis otherwise carry over without major changes.
Was the 2009 Mercedes-Benz CLK-Class redesigned?
No, the 2009 CLK-Class was not redesigned. It is the final year of the second-generation CLK, with only a light equipment update before the two-door E-Class replaced it.
Is 2009 the final year of the Mercedes-Benz CLK-Class?
Yes, 2009 is the final model year of the second-generation CLK-Class in the U.S. Mercedes replaced it with the two-door E-Class.
What is the difference between the 2009 CLK 350 and CLK 550?
The 2009 CLK 350 has a 268-hp 3.5-liter V6 and a comfort-focused setup. The CLK 550 has a 382-hp 5.5-liter V8, sport suspension, stronger brakes, shift paddles, and sportier exterior trim.
Did the 2009 CLK-Class get a new engine or transmission?
No, the 2009 CLK-Class keeps the existing V6 and V8 engines, 7-speed automatic transmission, and rear-wheel-drive layout. The year’s main update is standard heated front seats.