Mercedes-Benz CLK320 W209 New Owners
Gizmo Guy provides a comprehensive look at the specifications, features, common issues, maintenance, and online resources associated with his Mercedes CLK320 W209.
Mercedes CLK320 Tips for New Owners
CLK Key Issues to Watch Out For
- Radiator:
The Valeo radiator is a critical point of failure in these cars and should be a priority for inspection and possible replacement. It’s prone to mixing coolant and transmission fluid, which can cause serious damage. - Transmission:
Be aware of potential leaks from the transmission electrical connector pilot bushing. Also, due to the radiator issues, keep an eye out for transmission problems. - Engine:
Watch for oil leaks from the valve/head cover gaskets, which are a common issue. Additionally, the crankshaft position sensor and mass airflow (MAF) sensor can fail, leading to rough idling, stalling, or poor performance. - Electrical:
Be prepared for possible pixel loss in the instrument cluster and potential issues with the brake light switch. - General:
Keep an eye out for rust, especially if you live in an area where salt is used on roads. - Electronic Modules:
The CLK320 W209 body control module is a key systems like the engine, transmission, and safety features. Failures can lead to costly repairs, with parts and labor can cost over a thousand dollar. Common issues include engine and transmission problems, electrical malfunctions, and airbag failures. To avoid expensive repairs, maintain the battery, perform regular diagnostics, and address warning lights promptly..
Maintenance Tips
- Service Schedules:
Adhere to the “A” and “B” service schedules.- “A” Service (approximately every 10,000 miles): Includes basic checks and an oil change.
- “B” Service (approximately every 20,000 miles): Includes all “A” service items plus air filter, cabin filter, and brake fluid replacement.
- Fluid Checks:
Regularly check and change engine oil, transmission fluid, coolant, and brake fluid. - Inspect Regularly:
Inspect belts and hoses for wear and tear and replace them as needed. - Address Leaks:
Investigate and repair any fluid leaks promptly to avoid further damage. - Maintain Electrical Systems:
Ensure all lights and sensors are working correctly. - Proactive Radiator Replacement:
Due to the high failure rate of the Valeo radiator, it is strongly recommended to consider replacing it proactively to prevent mixing of coolant and transmission fluid.
This information will help you stay on top of maintenance and prevent costly repairs, ensuring you enjoy your 2003 Mercedes-Benz CLK320 Elegance for years to come.
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Mercedes CLK320 C209 Coupe Overview
CLK X209 Specifications and Features
The 2003 CLK320 Elegance is equipped with a robust 3.2L V6 engine, boasting six cylinders in a V-form configuration with three valves per cylinder 1. This engine generates an impressive 215 hp at 5,700 rpm and 221 lb-ft of torque at 3,000 rpm, delivering a balance of performance and fuel efficiency with a combined fuel economy of 20 MPG 2. Power is delivered to the rear wheels through a smooth 5-speed automatic transmission 2.
With a generous fuel tank capacity of 70.00L 3, the CLK320 Elegance is ready for extended journeys. Notable dimensions include a length of 4567mm, a width of 1722mm, and a height of 1380mm 3. With a curb weight of 1695kg, the CLK320 Elegance offers a balance of agility and stability 3.
| Feature | Description |
|---|---|
| Engine | 3.2L V6 |
| Horsepower | 215 hp @ 5,700 rpm |
| Torque | 221 lb-ft @ 3,000 rpm |
| Transmission | 5-speed automatic |
| Drive Type | Rear-wheel drive |
| Fuel Economy | 20 MPG (combined) |
| Fuel Tank Capacity | 70.00L |
| Length | 4567mm |
| Width | 1722mm |
| Height | 1380mm |
| Curb Weight | 1695kg |
| Wheelbase | 2690mm 3 |
The CLK320 Elegance boasts an array of features, including:
- Comfort and Convenience: Dual power front seats, leather seats, power windows 4, and cruise control 4.
- Exterior: A range of exterior colors are available, including Alabaster White, Black Opalin Metallic, Brilliant Silver Metallic, Capri Blue Metallic, Desert Silver Metallic, Everest Green Metallic, Firemist, Obsidian Black Metallic, Orion Blue Metallic, and Pewter Silver Metallic 5. The Elegance trim comes standard with 16-inch alloy wheels, an electric convertible top, and metallic paint 3.
- Warranty: The CLK320 Elegance comes with a 4 yr./ 50,000 mi basic warranty, a 4 yr./ 50,000 mi drivetrain warranty, and a 4 yr./ 50,000 mi rust warranty 2.
In addition to the standard features, the CLK320 Elegance offered a variety of option packs to enhance the driving experience. These included:
- 17″ Alloy Wheels 5 spoke sport with Sports Suspension: This package upgraded the wheels and suspension for a sportier look and feel6.
- Parktronic System: This package added front and rear parking distance control for easier maneuvering6.
- Premium Sound System: This package upgraded the audio system for a more immersive listening experience6.
- Premium Package: This package included features such as rear occupant side airbags, an alarm system, Distronic adaptive cruise control, voice recognition, a power rear sunshade, Bi-Xenon headlights with headlamp washers, a heated wood/leather steering wheel, heated front seats, power-folding door mirrors, and an AMG body kit6.
- Need Bluetooth for your Mercedes CLK W209 ? Here is how you can add bluetooth to Mercedes Benz CLK320
| Safety Feature | Description |
|---|---|
| Airbags | Dual front airbags, head airbags, and side airbags 3 |
| Braking | Anti-lock brakes and brake assist 3 |
| Stability and Control | Electronic Stability Program and Traction Control System 3 |
| Security | Engine immobilizer 3 |
Common Issues and Maintenance Tips
While the 2003 CLK320 Elegance is generally reliable, proactive maintenance is essential to prevent common issues and ensure the longevity of this sophisticated machine 10. Some common issues include:
- Valeo radiator: This radiator can potentially allow transmission fluid and coolant to mix, leading to overheating and transmission damage12.
- Leaky transmission electrical connector pilot bushing: This can cause transmission fluid leaks, potentially leading to transmission problems if not addressed12.
- Leaky valve/head cover gaskets: These gaskets can lead to oil leaks, which can affect engine performance and longevity12.
- Crankshaft position sensor failure: This sensor can fail, causing engine performance problems such as rough idling, stalling, or difficulty starting13.
- Instrument cluster pixel loss: Over time, the pixels on the instrument cluster display may fail, affecting the readability of information such as speed, fuel level, and warning lights13.
- Mass airflow (MAF) sensor failure: The MAF sensor can fail, causing issues such as poor fuel economy, rough idling, and reduced engine power14.
- Brake light switch failure: This can cause the brake lights to malfunction or trigger warning lights on the dashboard, such as the ESP/BAS warning lights15.
To keep your CLK320 Elegance running smoothly, adhere to the recommended “A” and “B” service schedules 16. These service schedules outline specific maintenance tasks to be performed at regular intervals, such as:
- “A” Service (approximately every 10,000 miles): This service typically includes an oil and filter change, fluid level checks, tire pressure check and adjustment, brake inspection, and a general inspection of the vehicle.
- “B” Service (approximately every 20,000 miles): This service includes all the items in the “A” service, plus additional checks and replacements, such as replacing the air filter, cabin dust/combination filter, and brake fluid.
In addition to the scheduled maintenance, some recommended maintenance tips include:
- Regular fluid checks and changes: Engine oil, transmission fluid, coolant, and brake fluid should be checked and replaced according to the manufacturer’s recommendations10.
- Inspection of belts and hoses: Regularly check for wear and tear and replace as needed11.
- Addressing leaks promptly: Any signs of fluid leaks should be investigated and repaired to prevent further damage17.
- Maintaining electrical systems: Ensure proper functioning of lights, sensors, and other electrical components18.
Conclusion
The 2003 Mercedes-Benz CLK320 Elegance C209 Coupe embodies Mercedes-Benz’s commitment to crafting refined and stylish vehicles. Its powerful engine, elegant design, and comprehensive features make it a compelling choice for those seeking a luxurious driving experience. While potential issues exist, proactive maintenance and engagement with online communities can help ensure a rewarding ownership journey. To further explore the CLK320 Elegance, delve into the enthusiast forums, watch the videos mentioned above, and read the insightful reviews from reputable sources.
Works cited
1. Mercedes-Benz CLK 320 C209 Elegance 2002-2005 | Autocatalog – Autogidas, accessed January 9, 2025, https://m.autogidas.lt/en/auto-katalogas/mercedes-benz/clk-320/c209-elegance-2002-2005-k46778
2. Used 2003 Mercedes-Benz CLK-Class CLK320 Specs & Features | Edmunds, accessed January 9, 2025, https://www.edmunds.com/mercedes-benz/clk-class/2003/st-100166454/features-specs/
3. Mercedes-Benz CLK-Class CLK320 Elegance 2003 Price & Specs …, accessed January 9, 2025, https://www.carsguide.com.au/mercedes-benz/clk-class/price/2003/clk320-elegance
4. 2003 Mercedes-Benz CLK-Class Specs, Features & Options – Kelley Blue Book, accessed January 9, 2025, https://www.kbb.com/mercedes-benz/clk-class/2003/specs/
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11. Avoid These Costly Problems – Mercedes CLK – C and E-Class… – YouTube, accessed January 9, 2025, https://www.youtube.com/watch?v=xQG0tOPS2yk
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17. 100K Mile 320CLK–Preventive Maintenance Items? | Mercedes-Benz Forum, accessed January 9, 2025, https://www.benzworld.org/threads/100k-mile-320clk-preventive-maintenance-items.1715419/
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