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2004 Mercedes-Benz CLK-Class Overview, Reviews, Ratings & Specs

Rating: 4.82
Based on 33 Owner Reviews โ–ถ
Cathleen V | March 31, 2025
The 2004 Mercedes-Benz CLK-Class represents the second generation (W209) of this popular coupe and convertible. Building upon Mercedes-Benz's reputation for luxury and engineering, the CLK offered a blend of style and performance. Key trims included the CLK320, CLK500, and the high-performance CLK55 AMG. Pricing ranged from approximately $40,000 to $70,000 when new. Its sleek, pillarless design and comfortable interior made it a sought-after personal luxury car, offering a refined driving experience.
The Good

The 2004 CLK-Class offers a compelling blend of luxury and performance. Its elegant design and comfortable interior provide emotional appeal. From a practical standpoint, it delivers respectable reliability (though not flawless), a smooth ride, and decent fuel efficiency, especially in the CLK320. Performance enthusiasts will appreciate the CLK500 and CLK55 AMG's powerful engines.

The Bad

Potential weaknesses of the 2004 CLK-Class include electrical issues (sensor malfunctions, lighting problems), occasional transmission glitches, and potential for rust, especially in areas with road salt. Suspension components can wear, leading to costly repairs. The CLK55 AMG has higher maintenance costs due to its performance-oriented parts. Prior maintenance history is critical.

2004 Mercedes-Benz CLK-Class: Quick Overview

  • Engine Options:
    • CLK320: 3.2L V6
    • CLK500: 5.0L V8
    • CLK55 AMG: 5.4L V8
  • Horsepower:
    • CLK320: 215 hp
    • CLK500: 302 hp
    • CLK55 AMG: 362 hp
  • Fuel Economy (City/Highway MPG): (Estimates, may vary)
    • CLK320: 18/26
    • CLK500: 16/23
    • CLK55 AMG: 15/21
  • 0-60 mph Times: (Estimates, may vary)
    • CLK320: ~7.5 seconds
    • CLK500: ~6.0 seconds
    • CLK55 AMG: ~5.2 seconds
  • Towing Capacity: Not Recommended
  • Trim-Level Features:
    • CLK320: Leather upholstery, dual-zone climate control, power seats, premium sound system, sunroof, alloy wheels.
    • CLK500: Adds or upgrades upon CLK320 features, including larger wheels, sport-tuned suspension, upgraded interior trim, and sometimes navigation.
    • CLK55 AMG: High-performance engine and transmission, AMG-specific body styling, sport seats, upgraded brakes, performance suspension, and unique interior appointments.

2004 Mercedes-Benz CLK-Class Specifications

Vehicle Information
Year 2004
Make Mercedes-Benz
Model CLK-Class
Trim -
Style 2-Door Coupe 5.0-Liter
Type Coupe
Category Subcompact Car
Manufacturing Details
Made In Germany
Manufacturing City BRERNEN
Dimensions
Doors 2-Door
Curb Weight 1626.13 kg
Gross Vehicle Weight Rating -
Overall Height 140.72 cm
Overall Length 463.8 cm
Overall Width 173.99 cm
Wheelbase Length 271.53 cm
Standard Seating 4
Engine & Performance
Engine 5.0-L V-8 SOHC 24V
Engine Size 5L
Engine Cylinders 8
Transmission 5-Speed Automatic
Transmission Type Automatic
Transmission Speeds 5-Speed
Drivetrain Rear-Wheel Drive
Additional Features
Anti-Brake System 4-Wheel ABS
Steering Type Rack & Pinion
Pricing
Manufacturer Suggested Retail Price (MSRP) $53,450 USD
Invoice Price $49,709 USD
Delivery Charges $720 USD

Vehicle History Report

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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 2004 Mercedes-Benz CLK-Class Have?

Frequently reported problems for the 2004 Mercedes-Benz CLK-Class often revolve around electrical systems. Sensor malfunctions, particularly those related to the mass airflow sensor or oxygen sensors, are common. Lighting issues, including problems with the instrument cluster or exterior lights, also appear frequently in owner reports. Transmission problems, such as rough shifting or delayed engagement, have been noted, particularly in higher-mileage examples. Rust can be a concern, especially in areas prone to road salt use. Check undercarriage, wheel wells, and around body seams. Suspension components, including control arm bushings and ball joints, are prone to wear and may require replacement. Recalls have been issued for various issues over the years; it's important to check the vehicle's VIN with the NHTSA (National Highway Traffic Safety Administration) to ensure all applicable recalls have been addressed.

Long-term reliability concerns often involve the aging of rubber components, such as hoses and seals, leading to leaks. The CLK55 AMG, while offering exhilarating performance, can be more expensive to maintain due to the specialized nature of its parts and higher performance demands. Engine mounts may also fail prematurely, particularly in the higher-performance models.

How long will the 2004 Mercedes-Benz CLK-Class last?

With proper maintenance, a 2004 Mercedes-Benz CLK-Class can easily reach 200,000 miles or more, potentially providing 15-20 years of service. However, consistent maintenance is crucial. Neglecting scheduled services will drastically shorten its lifespan. Long-term durability hinges on addressing known weaknesses, like electrical issues and rust. Regularly inspecting and replacing worn suspension components is also key. Engines, especially the V6 and V8, are generally robust if properly maintained. Preventative maintenance focused on the cooling system can help extend its engine life. Cars with documented service history command a premium.

What Technology & Safety Features are Included?

The 2004 Mercedes-Benz CLK-Class came standard with a decent array of technology for its time. Entertainment features included a premium sound system (often Bose), a single-disc CD player, and AM/FM radio. Navigation was available as an option, using a screen integrated into the center console. Driver-assistance features were limited compared to modern cars, but included cruise control and rain-sensing wipers. Safety features were more comprehensive, including anti-lock brakes (ABS), electronic stability program (ESP), traction control, and multiple airbags (front, side, and curtain).

Optional features varied depending on the trim level and packages selected. These could include a sunroof, upgraded leather upholstery, heated seats, a multi-disc CD changer, and parking sensors. The COMAND system, integrating navigation and audio controls, was also an available option. Crash test ratings from the NHTSA and IIHS (Insurance Institute for Highway Safety) varied. While specific ratings for the 2004 model year can be found on their websites, the CLK-Class generally performed well in crash tests, reflecting Mercedes-Benz's commitment to safety. However, remember that safety technology has advanced significantly since 2004.

What Colors Options are Available?

Exterior Colors
Black
Arctic White
Brilliant Silver Metallic
Obsidian Black Metallic
Mars Red
Capri Blue Metallic
Desert Silver Metallic
Flint Grey Metallic
Tealite Blue Metallic
Interior Colors
Alpaca Grey
Ash
Black
Quartz

2004 Mercedes-Benz CLK-Class Prices and Market Value

When new, the 2004 Mercedes-Benz CLK-Class ranged from approximately $40,000 for the CLK320 to over $70,000 for the CLK55 AMG. Current used market prices vary significantly based on condition, mileage, and location. Expect to find CLK320 models in good condition for around $5,000-$10,000, while CLK500 models might fetch $7,000-$12,000. CLK55 AMG models, due to their rarity and performance, command a higher premium, ranging from $15,000-$25,000 or more, depending on condition. Low mileage, a clean title, and documented maintenance history significantly increase resale value. Convertibles generally hold their value slightly better than coupes. Depreciation has been substantial, as is typical for luxury vehicles of this age.

2004 Mercedes-Benz CLK-Class Cost of Ownership

The 2004 Mercedes-Benz CLK-Class is generally not an economical car to own long-term. Insurance costs are moderate but higher than average. Fuel costs can be significant, especially with the V8 engines. Maintenance and repair costs can be substantial, as Mercedes-Benz parts and labor are generally expensive. Unexpected repairs can quickly add up, making a thorough pre-purchase inspection essential. Budgeting for regular maintenance and potential repairs is crucial to avoid financial surprises. The CLK55 AMG will be the most expensive to maintain and repair due to its performance parts.

2004 Mercedes-Benz CLK-Class Fuel Efficiency

Fuel Type Gasoline
Fuel Capacity 62.08 liters
City Mileage 6.8 km/l
Highway Mileage 9.78 km/l

2004 Mercedes-Benz CLK-Class Safety Rating

NHTSA
Side Driver Rating
Frontal Passenger Rating
Rollover Rating
Side Rear Passenger Rating
Frontal Driver Rating
IIHS
Rear Crash Protection/Head Restraint Ratings Good
Moderate Overlap Front Test Results Not Tested
Side Impact Test Results Not Tested

2004 Mercedes-Benz CLK-Class Warranty

Basic
Original warranty 48 months / 50,000 miles
Estimated remaining Expired
Powertrain
Original warranty 48 months / 50,000 miles
Estimated remaining Expired
Rust
Original warranty 48 months / 50,000 miles
Estimated remaining Expired

2004 Mercedes-Benz CLK-Class Insurance

Insurance for a 2004 Mercedes-Benz CLK-Class is moderately priced, reflecting its status as a Coupe with strong safety ratings and
reasonable repair costs.

How Does the 2004 Mercedes-Benz CLK-Class Compare to Other Coupe?

Key rivals to the 2004 Mercedes-Benz CLK-Class included the BMW 3 Series Coupe (E46), Audi A4 Cabriolet, and Lexus SC430. In terms of performance, the CLK55 AMG could rival the BMW M3 (E46), while the CLK320 and CLK500 were generally comparable to their respective BMW and Audi counterparts. Feature-wise, the CLK offered a similar level of luxury and technology. Reliability is where the CLK falls slightly behind some competitors. The Lexus SC430 is known for its superior reliability, while the BMW 3 Series offered a sportier driving experience.

Price-wise, the CLK was generally competitive. As used cars, the BMW 3 Series Coupe can be a similar or slightly cheaper option. Alternatives worth considering include the Infiniti G35 Coupe, which offers similar performance at a lower price point, though with less luxurious appointments. If reliability is a top priority, the Lexus SC430 is a strong contender. For a more engaging driving experience, the BMW 3 Series remains a solid choice. The Audi A4 Cabriolet offered similar luxury and open-top experience, but might not match the CLK's performance or prestige.

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1 2023 Toyota Camry (5.0โ˜…)
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5 2022 Mazda MX-30 (4.0โ˜…)
6 2024 BMW M3 (0.0โ˜…)
7 2023 Ford Mustang (5.0โ˜…)
8 2023 Mercedes-Benz AMG GT (0.0โ˜…)
9 2023 Audi A3 (0.0โ˜…)
10 2023 Chevrolet Camaro (5.0โ˜…)
11 2023 Hyundai Elantra Hybrid (0.0โ˜…)
12 2023 Nissan Altima (4.0โ˜…)
745 2004 Mercedes-Benz CLK-Class (5.0โ˜…)

Final Verdict: Is the 2004 Mercedes-Benz CLK-Class a Good Coupe?

The 2004 Mercedes-Benz CLK-Class is ideal for someone seeking a stylish and comfortable coupe or convertible with a touch of luxury. It's worth buying *if* you're prepared for potential maintenance costs and prioritize a smooth ride and elegant design over ultimate reliability. Buying used is the only option at this point, and a pre-purchase inspection is crucial. The CLK320 offers a good balance of fuel economy and performance, while the CLK500 provides more power. The CLK55 AMG is for enthusiasts willing to pay a premium for a high-performance experience. Look for a well-maintained example with a comprehensive service history to minimize potential headaches. Ensure all recalls have been addressed.

2004 Mercedes-Benz CLK-Class Owner Reviews

4.82
Consumer Rating, Based on 33 Consumer Reviews
Overall rating
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Zak Khanfar on October 30, 2022

A Car Like No Others

I have my 1999 CLK 320 Convertible for 12 years , It is great car , fast, comfortable , stylish , good gas mileage , has 12 sparkplugs , 2 for each cylinder ,if you live in a city with good weather like where I live in San Diego,CA you will gett great experience with convertible car ,my top is down most of the year.

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Michelle on July 24, 2022

The 2-door hard top coup.

This model from very late 90s to very early 2000's (mine is a 2004) are great cars. The 6clydr M112 and M113 engines are Benz's best

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Nissar on May 19, 2021

As close to perfect as it gets.

The most balanced car I've ever owned. Not over or under powered. Very comfortable, timeless design and very good on MPG for that kind of power.

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Kickdown-169 on April 13, 2020

Nice Convertible

I purchased a 2004 CLK 320 Convertible for summer fun this year, iร‚ยดm really happy, nice enginge, good sound, comfortable ride, a lot of features for the age of the car.

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RICHARD on July 31, 2019

very nice auto even my neighbors are impressed

excellent auto. just had it for less than a day but love it the car has been well taken care of and we expect it to last a long time

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dgd on July 24, 2019

fun classic AMG convertible

comfort, performance and quality. Not many around so exclusive room for 4 great fun summer top down cruising rock solid and get plenty of compliments

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Dbbobizee on June 29, 2019

Very comfortable, agile fun car to drive.

Plenty of legroom. Sleek style, a true head Turner. It's fun driving this car. With all the available power options..plush leather seats. Very comfortable all around.

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PassionForCars on April 14, 2019

Literally the most reliable car I've ever owned

The Mercedes-Benz CLK 320 Coupe V6 is very spacious inside yet compact so it's very easy to park. As the original owner, I have driven it for 14 years and absolutely enjoyed it as it's been extremely reliable, sporty, and fun! I have kept up with its services and it's been worth it as it runs like a champ at 89,000 miles. Truly can't go wrong with this solid german engine!

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Gaucho1997 on December 25, 2018

Most Beautiful Car I've Ever Owned!

This car is powerful, compact, beautiful to look at and be seen in. Every time I get in it, I feel pampered. The cadet blue color is a definite rare, and distinct color among these CLK cars and not to mention the power of the V8 in a smaller car. It's like the Mustang 5.0 engine but in a luxury car. That's why I got it myself.

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VTS on November 3, 2018

Outstanding in every way.

My previous three vehicles were Japanese and I loved them all (2000 Civic 4 door, 2013 Toyota Corolla and 2017 Civic again) but I really, really wanted a Benz and specifically THIS Benz. Something about the design of the CLK class ends up as the quintessential Mercedes sporty but classy look that is forever timeless. I got it at a steal with 104,000 miles, all original everything, two owners, clean carfax, perfect documented maintenance history, no repairs needed, and had my local Mercedes dealer check it over along with my buddy who was a Benz tech for 30 years. This car is built to last, and the combination of the quiet and comfy interior (for the coupe, at least) and wonderfully tight construction all around, from handling to the powerful engine response and Tiptronic options...it's all too much. The car's onboard PCM even for that era was smart as hell and the luxury inside is accented exactly correctly with the wood panels. Mine was black on black on black with light grey for the headliner and I replaced that for black as well. No issues with it whatsoever and I'm happy pushing 90 plus on the highway or motoring around the city with the sick sound system blasting, Bose with the bass boost to the max with or without the woofer. I love it. You can get a great one for 5K - go grab it now.

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Cathleen V

Cathleen is an exceptional freelance writer covering hot topics in the automotive world from a gearhead's perspective. Her articles delve into various aspects of automotive technology and history, offering readers detailed insights into engine performance, reliability, and maintenance. Through her engaging and informative writing, Cathleen provides valuable information to automotive enthusiasts and consumers alike, helping them make informed decisions about vehicle maintenance and purchases.