Dublin, CA – Mercedes-Benz CL600 Common Problems | Auto Repair Shop News

The Mercedes-Benz CL600 has earned an iconic reputation over the years for its luxurious comfort and powerful performance. However, even high-end vehicles experience mechanical issues over time. At our shop, we have serviced many CL600 coupes over the years and have become intimately familiar with the most common problems these vehicles face. Read on as we provide an in-depth look into troubleshooting some of the most prevalent issues with the CL600.

Active Body Control System Prone to Leaks and Failures
The CL600 utilizes an active suspension system called Active Body Control (ABC) to deliver a smooth, consistent ride. However, the ABC system is plagued by hydraulic leaks, faulty pumps, and wear in the struts themselves. Owners often notice a sagging suspension, uneven ride height between sides, and various warning lights indicating a problem with the ABC system.

Repairing issues with ABC can be frustratingly expensive due to the cost of parts and complexity of the system. At our shop, we have experience tracking down leaks, replacing damaged components, and getting ABC functioning correctly again. Though it requires meticulous troubleshooting and care, we can restore this system to keep your CL600’s ride feeling like new.

Temperamental Bi-Turbo V12 Prone to Problems

While the CL600’s V12 engine provides incredible power, it does have some weak spots prone to trouble. Turbocharger failure is common, as are oil leaks from the turbo feed lines and rear main seal. These engines are also susceptible to carbon buildup around the valves and ignition coils that fail prematurely. Misfires, poor performance, and warning lights pointing to ignition coil issues are common symptoms.

At our shop, we can diagnose V12 problems accurately and have the parts sourcing and expertise to get your engine running smoothly again. From turbocharger replacements to valve cleaning services, we can tackle any issues stemming from your CL600’s brawny V12.

Transmission Woes Plague Both 5-Speed and 7-Speed Models 

The 5-speed automatic found in early CL600 models, as well as the 7-speed in later versions, can prove unreliable. Some common symptoms include delayed shifts, rough shifting, and transmission failures. Proper maintenance and fluid changes are critical for maximizing the longevity of these transmissions.

We know the innards of these transmissions intimately at our shop. Whether you’re experiencing slipping gears, warning lights, or trouble shifting, we have the diagnostic capabilities to pinpoint any mechanical issues. Our transmission rebuilding and repair services can overhaul your CL600’s transmission for reliable shifting for years to come.

Electrical Gremlins: Everything from Door Modules to Batteries

With a complex electrical system controlling everything from lighting to suspension, the CL600 can be prone to electrical faults. Door control modules can malfunction, causing windows and locks to act erratically. The COMAND system in charge of navigation and audio can also cause headaches. Faulty batteries and alternators that die prematurely are other concerns.

Our electrical diagnostic skills are second to none. We can track down wiring issues, replace defective control modules, and keep your CL600’s electrical system in top form. Don’t let failing electronics sour your enjoyment of this luxurious coupe.

Protect Your Investment with Proper Maintenance

While it has its quirks, a well-cared-for CL600 is an amazing combination of performance, luxury, and iconic style. Protect your investment by staying on top of maintenance and addressing any issues promptly. Our Mercedes-Benz specialists have the experience and skills to keep your car in peak form. Contact our shop for unmatched service for your prized CL600. We look forward to maintaining and enhancing your enjoyment of this legendary machine for years to come.