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2003 Mercedes-Benz CLK-Class Overview, Reviews, Ratings & Specs

Rating: 4.69
Based on 18 Owner Reviews โ–ถ
Drew B | March 31, 2025
The 2003 Mercedes-Benz CLK-Class is a luxurious and stylish coupe and convertible that offered a blend of performance and elegance. Part of the second generation (W209), it followed the successful first generation CLK. Key trims included the CLK320 and the CLK500. The CLK was popular for its sophisticated styling, comfortable ride, and prestigious Mercedes-Benz badge. Original pricing ranged from around $40,000 to $60,000, depending on the trim and options.
The Good

The 2003 CLK offers a compelling blend of luxury and performance. It boasts a comfortable and refined ride appealing to practical buyers seeking reliability and safety. Emotionally, the CLK provides a stylish design and the prestige of the Mercedes-Benz brand, delivering an enjoyable and confident driving experience, particularly with the more powerful V8 engine.

The Bad

Potential weaknesses of the 2003 CLK include electrical issues, particularly with sensors and modules. Some owners have reported problems with the climate control system and the convertible top mechanism (if applicable). Rust can be a concern in certain climates. Maintenance can be expensive due to the car's complexity and the cost of Mercedes-Benz parts.

2003 Mercedes-Benz CLK-Class: Quick Overview

  • Engine Options:
    • CLK320: 3.2L V6
    • CLK500: 5.0L V8
  • Horsepower:
    • CLK320: 215 hp
    • CLK500: 302 hp
  • Fuel Economy (estimated):
    • CLK320: 17 mpg city / 24 mpg highway
    • CLK500: 16 mpg city / 23 mpg highway
  • 0-60 Times (estimated):
    • CLK320: 7.4 seconds
    • CLK500: 6.0 seconds
  • Towing Capacity: Not recommended or specified by Mercedes-Benz for towing.
  • Trim-Level Features:
    • CLK320: Standard features include leather upholstery, automatic climate control, power seats, premium sound system, alloy wheels, anti-lock brakes (ABS), stability control.
    • CLK500: Adds to CLK320 with larger engine, upgraded brakes, sport-tuned suspension, and potentially more premium interior trim options.
  • Common options (both trims):
    • Sunroof
    • Heated Seats
    • Navigation System
    • Xenon Headlights
    • Premium Leather

Note: Specifications can vary slightly depending on the exact configuration and optional equipment.

2003 Mercedes-Benz CLK-Class Specifications

Vehicle Information
Year 2003
Make Mercedes-Benz
Model CLK-Class
Trim -
Style 2-Door Cabriolet 4.3-Liter
Type Convertible
Category Compact Car
Manufacturing Details
Made In Germany
Manufacturing City BRERNEN
Dimensions
Doors 2-Door
Curb Weight -
Gross Vehicle Weight Rating -
Overall Height -
Overall Length -
Overall Width -
Wheelbase Length -
Standard Seating -
Engine & Performance
Engine 3.2L V6
Engine Size 3.2L
Engine Cylinders 6
Transmission -
Transmission Type -
Transmission Speeds -
Drivetrain Rear-Wheel Drive
Additional Features
Anti-Brake System -
Steering Type -
Pricing
Manufacturer Suggested Retail Price (MSRP) -
Invoice Price -
Delivery Charges -

Vehicle History Report

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Specifications
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Events
NMVTIS Title
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Salvage/Rebuilt
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Accident
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Theft
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Open Lien
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Past Sale
Listings
Safety
Recalls
Odometer
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Market Price
Analysis

What Problems Does the 2003 Mercedes-Benz CLK-Class Have?

Frequently reported problems with the 2003 Mercedes-Benz CLK-Class often involve electrical systems. Sensor failures, particularly related to the engine and transmission, are common. Issues with the climate control system, such as malfunctioning blend doors or compressor failures, also appear frequently. For convertible models, the hydraulic system for the convertible top can develop leaks or failures. Rust, especially in areas prone to road salt, is a long-term concern.

Specific recalls for the 2003 model year should be checked with the National Highway Traffic Safety Administration (NHTSA) using the vehicle identification number (VIN). However, recalls can occur for issues like fuel leaks or airbag malfunctions. Long-term reliability concerns revolve around the cost of maintaining a luxury vehicle. Parts can be expensive, and specialized knowledge may be required for repairs. Over time, rubber components such as hoses and seals can deteriorate, leading to leaks. Early W209 models (2003-2004) may experience more electrical glitches compared to later years.

How long will the 2003 Mercedes-Benz CLK-Class last?

Given their age, most 2003 CLK-Class models will have accumulated significant mileage, typically ranging from 150,000 to 250,000 miles or more. With diligent maintenance, including regular oil changes, fluid flushes, and timely replacement of worn parts, these cars can last well beyond 20 years. However, neglecting maintenance will drastically shorten their lifespan. Long-term durability hinges on addressing potential weaknesses like rust, electrical gremlins, and hydraulic system issues (convertible). Expect to replace suspension components, bushings, and engine mounts over time. Proper storage can significantly extend the life of soft top convertibles.

What Technology & Safety Features are Included?

The 2003 Mercedes-Benz CLK-Class came equipped with a respectable amount of technology for its time. Standard features included a premium sound system with a CD player, automatic climate control, power windows and locks, and keyless entry. Optional features included a navigation system (typically a dated, CD-based system), a multi-disc CD changer, heated seats, and xenon headlights.

Driver-assistance features were relatively limited compared to modern cars. Standard safety features included anti-lock brakes (ABS), electronic stability control (ESP), and traction control. Front and side airbags were also standard. Optional safety features might have included rain-sensing wipers and park assist.

Crash-test ratings from the National Highway Traffic Safety Administration (NHTSA) and the Insurance Institute for Highway Safety (IIHS) should be consulted for a complete picture of the vehicle's safety performance. While specific ratings should be verified, the CLK generally performed well in crash tests for its era, reflecting Mercedes-Benz's emphasis on safety. Check NHTSA and IIHS websites for precise ratings.

What Colors Options are Available?

Exterior Colors
Black
Alabaster White
Brilliant Silver Metallic
Obsidian Black Metallic
Desert Silver Metallic
Midnight Blue
Tealite Blue Metallic
Andradite Green Metallic
Mars Red
Quartz Blue Metallic
Interior Colors
Black
Gray
Beige
Ash
Orion Blue
Cappuccino

2003 Mercedes-Benz CLK-Class Prices and Market Value

When new, the 2003 Mercedes-Benz CLK-Class ranged from approximately $40,000 to $60,000, depending on the model (CLK320 or CLK500) and options. Currently, used market prices typically range from $5,000 to $15,000, depending on condition, mileage, and location. Depreciation has been significant due to the car's age and the cost of potential repairs. Factors affecting resale value include overall condition (rust-free is key), maintenance history, mileage, and the presence of desirable options. Convertibles tend to hold slightly higher value than coupes. Low mileage examples in excellent condition command the highest prices.

2003 Mercedes-Benz CLK-Class Cost of Ownership

The 2003 CLK-Class is generally considered a costly vehicle to own long-term. Insurance costs will likely be moderate, but fuel consumption, particularly with the V8, can be high. Maintenance and repair costs are the biggest concern. Parts are often expensive, and specialized labor may be required. Budgeting for potential repairs is essential. Regular maintenance can mitigate some expenses, but unforeseen issues can quickly add up, making it less economical than more modern or less complex vehicles.

2003 Mercedes-Benz CLK-Class Fuel Efficiency

Fuel Type Gasoline
Fuel Capacity -
City Mileage -
Highway Mileage -

2003 Mercedes-Benz CLK-Class Safety Rating

NHTSA
Overall Rating Not Tested
Overall Frontal Star Rating Not Tested
Side Overall Star Rating Not Tested
Overall Rollover Star Rating Not Tested
Combined Front Seat Rating Not Tested
Combined Rear Seat Rating Not Tested
Overall Frontal Star Rating Not Tested
Frontal Barrier Star Ratings Not Tested
Side Barrier Star Ratings Not Tested
Rollover Resistance Star Rating Not Tested

2003 Mercedes-Benz CLK-Class Insurance

Insurance for a 2003 Mercedes-Benz CLK-Class is moderately priced, reflecting its status as a Convertible with strong safety ratings and
reasonable repair costs.

How Does the 2003 Mercedes-Benz CLK-Class Compare to Other Convertible?

The 2003 Mercedes-Benz CLK-Class competed with vehicles like the BMW 3 Series Coupe/Convertible (E46), Lexus SC430, and Audi A4 Cabriolet. In terms of performance, the CLK500 offered comparable power to the BMW 330Ci and the Lexus SC430. The CLK generally provided a more comfortable ride than the BMW but less sporty handling. Feature-wise, the CLK was well-equipped for its time, but the Lexus SC430 had a more modern interior design.

Reliability is where the CLK can fall short compared to the Lexus. The Lexus SC430 is generally considered more reliable, while the BMW 3 Series can have its own set of issues. Price-wise, used CLKs are generally comparable to or slightly more affordable than similar-condition BMWs and Lexus models.

Alternatives to the CLK include the BMW 3 Series (E46) for a sportier driving experience (but potentially lower reliability), or the Lexus SC430 for greater reliability and a comfortable ride (but less sporty handling). A newer, more reliable coupe or convertible from a non-luxury brand might also be a better choice for budget-conscious buyers. Consider a newer BMW 4 Series or Audi A5 for a more modern and reliable experience, albeit at a higher price point.

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Final Verdict: Is the 2003 Mercedes-Benz CLK-Class a Good Convertible?

The 2003 Mercedes-Benz CLK-Class is ideal for someone who appreciates classic Mercedes-Benz styling and is willing to accept the potential for higher maintenance costs. It's worth buying *if* you find a well-maintained example with a comprehensive service history and a pre-purchase inspection by a qualified mechanic. The CLK320 is a good choice for those prioritizing fuel economy and a comfortable ride, while the CLK500 offers more spirited performance. It's generally not recommended for buyers seeking trouble-free, economical transportation. Being prepared for potential repairs is crucial. A rust-free example is a must, especially in regions with harsh winters. Consider the convertible only if the top mechanism is in good working order.

2003 Mercedes-Benz CLK-Class Owner Reviews

4.69
Consumer Rating, Based on 18 Consumer Reviews
Overall rating
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JayHBK on June 25, 2020

Only if u have $$$$$

This car is a money pit Donโ€™t get this car Unless you have a lot of money to blow I donโ€™t know why am even putting this review because itโ€™s kind of pointless because youโ€™re gonna have to see for yourself when you start being mad because of every other Mercedes dealership youโ€™re going to get to know personally

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Tony on October 2, 2019

This car drives and runs great

This car is fun to drive and look at. Drives like a sports car and a luxury car at the same time. This car has it all.

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Carl-B on September 6, 2017

Convertible CLK430

The Mercedes CLK 430 Cab is one enjoyable experience that I wish other could experience. The car with the V8 has enough power and features to be enjoyable throughout the year. Maintenance is easy for a DIY, and if you limit your visits to the dealership the cost of upkeep is reasonable.

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Red on May 24, 2017

Timeless style

Can't beat Mercedes reliability and style. Built like a tank for safety. Fun to drive. Love this car!

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carbug on May 11, 2017

Classic Beauty, What a pleasure to drive?

My first CLK was a 2001 320 hardtop, which was the first time a personally owned a Mercedes. Unless you actually own one you really never get to really appreciate the collective profound effect of the thoughtfulness towards , your safety, comfort and supreme driving experience that goes into the design and production of these automobiles. This is true especially when compared to "regular cars". I lost my first one in an accident, but while I had two other cars, an Audi Convertible and a Volvo, my heart was only content when I was very fortunate to find a 2003 CLK 430 convertible , in pristine condition and on 30K miles. You can imagine the joy. These cars have powerful engines that deliver performance on demand. The braking is excellent. The ride is smooth, but it is what the cabin and lovely seats dot you that is beyond mention. The exterior design is a head turner, quite something for a 20 year old inspiration. If you are lucky to find one of these babes in good condition, GET IT. You will Love It.

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Riche on November 30, 2015

Easy car Buy

I found this car on Cars.com. I was able to look for the exact car I wanted and find a great price. This gave me the ability to compare as well. A great way to buy a car!

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wolfbear on January 15, 2015

Good looks and reliability

This a great handling and good looking machine. Responsive handling and quick acceleration. Not to mention the gas mileage is stupendous.

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New Owner on May 2, 2013

Great people to work with!

I just purchased a great Mercedes from these guys and feel very comfortable writing this stellar review about them. They were courteous, reasonable, honest and helped give me the time and consideration to make a thorough inspection of the vehicle and and made sure every detail of my concerns was taken care of. I am very happy with this dealership and thier sales people. It is rare in my 40 years of driving and buying cars to get lucky enough to run into human beings with such class! And I got a great car for a reasonable price!

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AMG Pete on April 9, 2013

Most Amazing Car for the Money

Un.Freakin.Believable. This thing is a 100% German muscle car. I mean seriously - 5.5L Euro V8, signed by the engineer who hand built the motor. Respect. I searched up and down and nearly bought a Maserati Coupe. Very glad I went with Germany instead of Italy. With 3 kids I still need a 4 seater and I don't think they get any cooler for the money. Pure awesome.

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sauce on September 29, 2012

2003 mercedes benz clk 500

Excellent service! From the time i pulled into the lot, i was treated with top notch service. Im very satisfied with my purchase. I will reccomend these guys to anybody who's looking to buy a car

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Drew B

Drew is a seasoned automotive expert and contributor to VinCheck.info. With nearly 15 years of experience as a former Porsche technician, he brings a wealth of hands-on knowledge to his writing. Born in North Carolina, a region renowned for its deep-rooted NASCAR culture, Drew developed a passion for cars early in life, often building and working on vehicles from a young age. At VINCheck, Drew leverages his extensive technical background to provide in-depth analyses of various vehicles. His articles often focus on engine performance, reliability, and maintenance insights, offering readers practical information grounded in real-world experience. Some of his notable contributions include reviews on the Mazda CX-5's longevity and detailed examinations of engine options for models like the 2011 Toyota Camry and Tacoma