The Mercedes CLS is a car that attracts a lot of attention. Its stylish design, luxurious features, and strong performance make it stand out in the world of midsize luxury sedans. But, like every car, not every year is perfect.
Some model years have more problems than others. If you are thinking about buying a used Mercedes CLS, knowing which years to avoid can save you money and frustration.
Let’s take a close look at the Mercedes CLS, the years with the most issues, and what you need to know before making a decision. This guide will help you understand which CLS models are smart buys—and which ones could bring expensive headaches.
Why The Mercedes Cls Is Special
The Mercedes CLS first appeared in 2004 and created a new segment: the four-door coupe. It combined the comfort of a sedan with the sporty style of a coupe. Over the years, Mercedes has released several versions, each with updates in design, technology, and performance. The CLS is popular for its:
- Sleek looks: The car’s low roofline and aggressive stance.
- Luxury interior: High-quality materials, advanced tech, and comfortable seats.
- Strong engines: From V6 to powerful V8s and even AMG versions.
But the CLS is also a complex car. With more features comes more chance for problems, especially as the car ages.
Mercedes Cls Generations Overview
Before looking at specific years to avoid, it helps to know the main generations of the CLS:
| Generation | Model Years (US) | Key Features |
|---|---|---|
| First (W219) | 2006–2011 | Original design, 5.0L V8, air suspension |
| Second (W218) | 2012–2018 | Restyled body, new engines, more tech |
| Third (C257) | 2019–present | Modern design, inline-6 engines, hybrid tech |
Each generation has its strengths and weaknesses. Most of the major issues are found in the earlier two generations.
Mercedes Cls Years To Avoid
Some CLS years have a reputation for reliability problems, high repair costs, or serious design flaws. Here are the main years most experts and owners say you should avoid:
- 2006 CLS (First US Year)
- 2007–2008 CLS
- 2012 CLS (First Year of W218)
- 2013 CLS
- 2015 CLS (Early Facelift Issues)
Let’s break down why these years are risky, what problems you may face, and how they compare to better model years.
1. 2006 Mercedes Cls (first Us Year)
The 2006 model was the first CLS available in the United States, known as the CLS500. It impressed buyers with its bold styling and strong V8. But as a first-year model, it suffered from:
- Electronic problems: Many owners report issues with the COMAND system (navigation, audio), failing sensors, and dashboard glitches.
- Air suspension failures: The AIRMATIC system is expensive to fix. Repairs often cost $2,000–$4,000.
- Oil leaks: The V8 engine had common leaks from valve cover gaskets and other seals.
- Transmission problems: Some early 7-speed automatics experienced rough shifting or failure.
These problems make the 2006 a high-risk option, especially if it has high mileage or incomplete service records.
2. 2007–2008 Mercedes Cls
The next two years continued many of the same issues. Problems to watch for include:
- Expensive suspension repairs: AIRMATIC compressors and air struts often fail around 60,000–80,000 miles.
- Electrical gremlins: Persistent warning lights, power window failures, and keyless entry issues.
- Brake system flaws: The Sensotronic Brake Control (SBC) system can fail, leading to costly repairs and even safety concerns.
Many owners reported that the car spent too much time in the shop. For a luxury car, this is disappointing and expensive.
3. 2012 Mercedes Cls (w218 Launch Year)
The second generation CLS brought a new design and many new features. The 2012 model, however, had “first-year jitters”:
- Turbocharged engine problems: The CLS550’s twin-turbo V8 had early issues with timing chain stretch, oil leaks, and turbo coolant leaks.
- Electronics: More complex systems led to frequent glitches with navigation, backup cameras, and the infotainment system.
- Interior quality slips: Some owners noticed rattles, peeling trim, and premature wear.
Choosing a 2012 model often means dealing with bugs that Mercedes fixed in later years.
4. 2013 Mercedes Cls
The 2013 model year continued some of the early W218 problems. Reports focus on:
- Fuel system faults: High-pressure fuel pumps and injectors were less reliable.
- Adaptive headlights: Frequent failures of the Intelligent Light System meant expensive bulb and module replacements.
- Turbo cooling issues: Overheating turbos led to expensive repairs if not caught early.
While some cars are reliable, many 2013 owners faced above-average repair bills.
5. 2015 Mercedes Cls (early Facelift Issues)
The 2015 model got a facelift with new headlights, updated infotainment, and new engines. But:
- Teething problems: Early 2015 models suffered from software bugs in the COMAND system and issues with the new LED headlights.
- 9-speed transmission: The new 9G-TRONIC gearbox had reports of rough shifts and electronic glitches in its first year.
Later 2015 builds (after mid-year) were more reliable, but early 2015s are risky unless updates have been made.
Most Common Problems In Cls Years To Avoid
Understanding the most frequent issues helps explain why certain CLS years are best left alone. Here’s a summary of the top trouble spots:
| Problem Area | Typical Repair Cost | Years Most Affected |
|---|---|---|
| Air Suspension Failure | $2,000–$4,000 | 2006–2008 |
| COMAND Electronics | $800–$2,500 | 2006, 2012–2015 |
| Turbocharger Leaks | $1,500–$3,000 | 2012–2013 |
| SBC Brake System | $1,200–$2,500 | 2006–2008 |
| Transmission Issues | $2,500–$5,000 | 2006, 2015 |
Two overlooked insights for buyers:
- Many electronic problems only appear after several years, so a used CLS can run well on a short test drive but develop issues soon after purchase.
- Air suspension repairs are sometimes “fixed” with cheaper parts, but these may fail again quickly—always check for repair receipts using genuine Mercedes parts.
Years Of The Mercedes Cls That Are Safe Bets
If you want a CLS but want to avoid the risk, some years stand out for better reliability and lower repair costs:
- 2009–2011 CLS (W219): The final years of the first generation. By this point, most early problems were solved. The 5.5L V8 in the CLS550 is strong and less prone to leaks than earlier versions.
- 2014, 2016–2018 CLS (W218): These years saw most early issues fixed. The engines are more reliable, and electronics are less buggy. The CLS400 (V6 turbo) is considered a solid choice.
- 2019–Present CLS (C257): The newest generation uses inline-6 engines with mild-hybrid tech. So far, there are few major complaints, and the car has high owner satisfaction.
If you find a well-maintained example from these years, you are less likely to face major headaches.
Buying Tips For A Used Mercedes Cls
If you are set on a CLS, careful shopping can help you avoid trouble—even in the riskier years. Here’s what you should do:
- Check the service history: Look for a complete record of oil changes, major repairs, and recall work. Gaps in maintenance are a red flag.
- Inspect the air suspension: Listen for noisy compressors, sagging corners, or dashboard warnings. Walk away if you see leaks or uneven ride height.
- Test all electronics: Try every button, screen, and feature during your test drive. Pay attention to the COMAND system, lights, and sensors.
- Get a pre-purchase inspection: Have a Mercedes specialist check the car—especially the engine, transmission, and suspension.
- Ask about warranty coverage: Some used CLS models may be covered by a certified pre-owned (CPO) warranty, which can save you thousands if something breaks.
A common mistake: Many buyers focus on mileage alone. But a well-maintained high-mileage CLS is often more reliable than a low-mileage car with poor or incomplete service.
How The Cls Compares To Other Mercedes Models
If you love Mercedes but want fewer risks, consider how the CLS stacks up against similar models:
| Model | Main Strengths | Main Weaknesses | Best Years |
|---|---|---|---|
| CLS-Class | Style, performance, luxury | Complex electronics, air suspension | 2009–2011, 2016–2018 |
| E-Class | Comfort, reliability, easier to maintain | Less sporty styling | 2010–2015, 2017–2020 |
| S-Class | Ultimate luxury, advanced features | Very expensive to repair | 2014–2017 |
The E-Class is a good alternative if you want less risk and easier maintenance. The S-Class offers more luxury but has even higher repair costs.
Real-world Owner Experiences
Many owners love their CLS, but those who bought years with common problems often share similar stories:
- “I spent over $7,000 on repairs in my first year, mostly on the air suspension and electronics.” (2007 CLS550 owner)
- “The car is amazing to drive, but every time a warning light comes on, I worry about a big bill.” (2012 CLS550 owner)
- “My 2010 CLS has been great. Only routine maintenance so far, and it still turns heads.” (2010 CLS owner)
Non-obvious insight: Some owners notice that cars with fewer options (like base audio or no air suspension) have far fewer issues. Simpler is sometimes better with the CLS.
Mercedes Cls Recalls And Safety Concerns
Another reason to avoid certain years is the number of recalls and safety issues. The 2006–2008 and 2012–2013 models had more recalls than average. Common recall reasons included:
- Airbag defects
- Brake system failures
- Electrical shorts that could cause fires
- Fuel leaks
Always check the VIN for open recalls before buying. The National Highway Traffic Safety Administration (NHTSA) is a good place to check recall history.
Cost Of Ownership: What To Expect
Buying a used luxury car means higher running costs. For risky CLS years, you should budget for:
- Routine maintenance: $1,000–$1,500 per year (oil changes, brakes, tires)
- Unexpected repairs: Can easily reach $3,000–$5,000 per year if unlucky
- Insurance: More expensive than average midsize sedans
Tip: Extended warranties can be worth the cost for the CLS, especially for years with known problems.
Should You Avoid Every Early Cls?
Not every early CLS is a problem car. Some have been cared for by loving owners and have had all major repairs done. If you find a 2006–2008 CLS with:
- Full repair records
- Recent air suspension work
- No warning lights
- Clean title and no major accidents
…it could still be a good buy, but plan for possible future repairs.
Experience-based advice: Even a “good” early CLS can surprise you with sudden repairs. If you are not prepared for this, consider a different year or a more reliable model.
Mercedes Cls: The Bottom Line
The Mercedes CLS is a beautiful, exciting car to drive. But some years come with more risk than reward. The 2006–2008 and 2012–2013 CLS models are best avoided unless you find a perfect example with proof of repairs. The 2015 model also had early facelift issues, so check the build date and service updates.
If you want to enjoy the style and performance of the CLS without constant repair bills, focus on 2009–2011, 2016–2018, or the latest models. No used luxury car is risk-free, but careful shopping and smart choices can make owning a Mercedes CLS a pleasure instead of a pain.
For more details on specific recalls and safety information, you can also visit the NHTSA official site.
Frequently Asked Questions
What Are The Worst Years For The Mercedes Cls?
The worst years for the Mercedes CLS are 2006, 2007, 2008, 2012, 2013, and early 2015. These years have the most reports of air suspension failure, electrical problems, and engine or transmission issues.
Is The Mercedes Cls Expensive To Maintain?
Yes, the CLS is more expensive to maintain than most regular cars. Expect to pay $1,000–$1,500 per year for normal maintenance. Major repairs, especially to the air suspension or electronics, can cost several thousand dollars.
Are Newer Cls Models More Reliable?
Generally, yes. The 2016–2018 and 2019–present CLS models have fewer complaints and better reliability. Mercedes improved the electronics and engines in later models.
Can I Avoid Problems By Buying A Certified Pre-owned Cls?
Buying a certified pre-owned (CPO) CLS can lower your risk. These cars have a factory warranty and are inspected by Mercedes technicians. A CPO CLS from a good year is usually a safe choice.
What Alternatives Should I Consider If I Want Fewer Problems?
If you want a luxury car with fewer issues, consider the Mercedes E-Class. It shares many features with the CLS but is often more reliable and cheaper to maintain. Other good options include the Lexus GS and BMW 5-Series.