The second-generation Cadillac CTS, produced from 2007 to 2013, was celebrated for its bold styling, luxurious features, and powerful V6 and V8 engines. However, like many vehicles from this era, the CTS has its fair share of common problems that prospective buyers and current owners should be aware of. This article will cover the key problem areas, what to look for when buying, and what to expect in terms of ownership costs for this iconic American luxury sedan.
1. Engine Issues
Timing Chain Stretching: One of the most frequently reported problems in the 2007-2013 Cadillac CTS, particularly with the 3.6L V6 engine, is timing chain stretching. This issue is common in Cadillac’s LY7 and LFX V6 engines and tends to occur when oil changes are delayed or low oil levels persist. A stretched timing chain can lead to poor engine performance, rough idling, and even engine failure if left untreated. Timing chain replacement is a significant repair, often costing between $1,500 and $2,500.
Oil Consumption: Many CTS models from this generation are known for high oil consumption, especially with the 3.6L V6 engine. Some owners report burning a quart of oil every 1,000 to 2,000 miles. This can exacerbate timing chain issues and lead to additional wear on engine components if oil levels are not checked and topped off regularly. Regular oil level checks are essential, and it’s recommended to follow a more frequent oil change schedule.
Misfires and Carbon Buildup: Carbon buildup is another problem that affects the direct-injection 3.6L engine in the CTS. Over time, carbon deposits accumulate on the intake valves, leading to misfires, poor throttle response, and reduced fuel efficiency. This is a common issue with direct-injection engines, and many owners opt for intake cleaning services to address it, which can cost between $400 and $800.
2. Transmission and Drivetrain Problems
Transmission Slipping and Hard Shifting: The CTS often suffers from transmission issues, including slipping, delayed shifts, and hard shifts, especially with the 6-speed automatic transmission. These issues can arise due to software problems or mechanical wear, particularly in high-mileage vehicles. A transmission fluid flush or software reprogramming can sometimes resolve these problems, though in some cases, a rebuild or replacement may be necessary. Rebuilding a transmission can cost upwards of $3,000.
Driveshaft and Differential Noise: Owners of the CTS AWD (all-wheel-drive) model frequently report noises from the driveshaft and differential, which are sometimes linked to worn-out bearings or driveshaft issues. In severe cases, differential or driveshaft repairs can run between $1,200 and $2,500. Regular maintenance and prompt attention to any unusual sounds can prevent these problems from escalating.
3. Suspension and Steering Concerns
Premature Wear on Suspension Components: Suspension issues are common in the 2007-2013 CTS, particularly with bushings, ball joints, and control arms. Owners often report noises from the suspension, such as clunks or squeaks, especially when driving over rough roads. Replacing worn-out bushings and ball joints can improve the ride quality, though it is labor-intensive. The cost for these repairs can range from $800 to $1,500.
Steering Rack Leaks: Some CTS models develop leaks in the steering rack, which can lead to reduced steering performance and, eventually, complete failure if the fluid runs out. Replacing the steering rack is an expensive repair, typically costing between $1,000 and $2,000. Regular checks for power steering fluid leaks can help catch this issue early.
Strut Mount Failures: Front strut mounts on the CTS are also known to wear out prematurely, leading to knocking noises and vibrations. Replacing strut mounts can improve handling, but it’s best done with full suspension servicing, which can cost up to $1,000 or more if shocks or struts also need replacement.
4. Electrical and Interior Issues
Infotainment System Malfunctions: The CTS is equipped with Cadillac’s advanced (for the time) infotainment system, which can develop various glitches, including unresponsive touchscreens, audio issues, and problems with navigation. These problems are often software-related, but in some cases, hardware failures require replacement of the infotainment module, which can be costly—upwards of $1,500 at a dealership.
Power Window and Door Lock Failures: Electrical issues are common in the CTS, especially with power windows and door locks. Failing window regulators can leave windows stuck in the open or closed position, while door lock actuators can stop working altogether. Window regulator replacement can cost around $300 to $500 per door.
Battery Drainage and Parasitic Draws: Many CTS owners report unexplained battery drainage, often due to parasitic electrical draws from faulty modules or wiring. This issue can be difficult to diagnose and may require a thorough inspection of the vehicle’s electrical system, which can be costly and time-consuming.
5. Exterior and Body Concerns
Sunroof Leaks: CTS models equipped with a sunroof sometimes experience leaks, which can allow water to seep into the cabin. This issue is usually caused by clogged sunroof drains, which can be cleared with regular maintenance. However, if water damage has occurred, it can lead to mold, electrical issues, and even rust, potentially leading to a costly repair.
Paint and Clear Coat Peeling: The 2007-2013 CTS can develop paint issues, especially in high-sun areas. The clear coat on these models tends to wear out prematurely, leading to peeling and fading. Repainting can be costly, and it’s advisable to check the paint quality carefully when buying a CTS.
What to Look for When Buying a Cadillac CTS (2007-2013)
If you’re considering purchasing a 2007-2013 Cadillac CTS, here’s a checklist of things to inspect before making your decision:
Service Records: Look for complete service records, especially proof of regular oil changes. This can indicate whether the previous owner took good care of the engine, which is crucial for avoiding timing chain and oil consumption problems.
Check for Engine and Transmission Issues: Test-drive the car to see if there are any unusual noises, delayed shifting, or transmission slipping. Any signs of hesitation or harsh shifting could be a red flag.
Listen for Suspension Noises: Take the CTS over bumps to listen for clunking or squeaking sounds, which could indicate suspension wear.
Test All Electronics: Make sure to test the infotainment system, power windows, door locks, and climate controls to ensure they’re working correctly.
Inspect the Sunroof and Look for Water Damage: If the car has a sunroof, check the interior for any signs of water stains or leaks, particularly on the roof lining and floor mats.
How Expensive Is It to Own a Cadillac CTS (2007-2013)?
The Cadillac CTS from this generation can be a rewarding vehicle to own but is often more expensive to maintain than many other midsize sedans. Here’s an overview of what you can expect:
Annual Maintenance Costs: Basic maintenance costs can range from $800 to $1,200 per year, depending on usage and parts replaced. However, if major issues arise—such as timing chain replacement or transmission repair—these costs can rise significantly.
Fuel and Oil Consumption: The CTS, particularly the 3.6L V6, is known for high oil consumption, which means more frequent oil top-offs and changes. It’s also relatively thirsty, with fuel economy in the low 20s for combined driving.
Insurance and Depreciation: The CTS is a luxury vehicle, so insurance costs are higher than for non-luxury sedans. Additionally, the value of used CTS models has depreciated over the years, making them affordable to buy but costly to repair relative to their value.
Final Thoughts
The 2007-2013 Cadillac CTS is a stylish, powerful luxury sedan that offers an engaging driving experience. However, it also comes with notable reliability concerns, particularly related to engine, transmission, and suspension components. If you’re considering buying one, be prepared for potentially high maintenance costs and ensure the car has been well-maintained with a complete service history.
For those who are willing to invest in ongoing upkeep and tackle occasional repair costs, the Cadillac CTS can be a rewarding choice, delivering both luxury and performance. With careful buying and diligent maintenance, it’s possible to enjoy the CTS experience while keeping surprises to a minimum.