2012 Mercedes-Benz CLS350

Introduction:

The 2012 Mercedes-Benz CLS350 is a luxurious sedan that combines performance and style. It is powered by a 3.5-liter V6 engine that produces 302 horsepower and 273 lb-ft of torque. The CLS350 comes standard with a 7-speed automatic transmission and rear-wheel drive. All-wheel drive is available as an option. The CLS350 is praised for its smooth ride, spacious interior, and impressive handling. However, it has also been criticized for its high price tag and lack of certain features.

Engine

3.5-Liter V6

• Oil Leaks: Oil leaks can occur from various parts of the engine, such as the valve cover gaskets, oil pan, and rear main seal. Symptoms include a noticeable drop in oil level and visible oil stains on the underside of the vehicle. The solution is to replace the faulty gaskets or seals. Estimated cost to fix: $500 - $1,000+
• Timing Chain Stretch: The timing chain can stretch or break over time, causing a loss of engine power and potential engine damage. Symptoms include rattling noises, rough idling, and reduced acceleration. The solution is to replace the timing chain and related components. Estimated cost to fix: $1,500 - $2,500+

Transmission

7-Speed Automatic

• Shifting Delays and Jerks: Owners have reported experiencing delayed or rough shifting when driving at low speeds. The solution may involve updating the transmission software or replacing the TCU (Transmission Control Unit). Estimated cost to fix: $200 - $600+
• Transmission Failure: In rare cases, the transmission may fail completely, requiring a costly replacement. Symptoms include a complete lack of power or sudden gear slippage. Estimated cost to fix: $3,000 - $5,000+

Suspension

• Airmatic Suspension Leaks: The airmatic suspension system can develop leaks from the air springs or lines. Symptoms include a noticeable drop in ride height and an unstable ride. The solution is to replace the faulty air springs or lines. Estimated cost to fix: $500 - $1,500+
• Strut Failure: Struts can fail over time, leading to a rough ride, poor handling, and excessive tire wear. Symptoms include clunking or rattling noises when driving over bumps. The solution is to replace the struts. Estimated cost to fix: $400 - $800+

Electrical

• Battery Drain: Some owners have reported experiencing a parasitic battery drain, which can lead to a dead battery. The solution is to identify and fix the source of the drain, such as a faulty module or accessory. Estimated cost to fix: $200 - $500+
• Electrical Harness Issues: Electrical harnesses can develop shorts or breaks, causing various electrical problems such as flickering lights, malfunctioning accessories, and even engine problems. Symptoms can vary depending on the affected circuit. The solution is to repair or replace the affected harness. Estimated cost to fix: $300 - $1,000+

Exterior

• Door Handle Issues: Owners have reported issues with door handles becoming loose or sticking. The solution is to adjust or replace the handle. Estimated cost to fix: $100 - $300+
• Trunk Lid Misalignment: The trunk lid may not always close properly, resulting in a misaligned or partially open trunk. The solution is to adjust the lid and hinges. Estimated cost to fix: $100 - $200+

Interior

• Sunroof Rattle: A rattling noise may be heard from the sunroof when driving at certain speeds. The solution is to tighten or replace the sunroof frame and tracks. Estimated cost to fix: $200 - $500+
• Instrument Cluster Failure: The instrument cluster may fail, resulting in a loss of gauges and warning lights. The solution is to replace the instrument cluster. Estimated cost to fix: $500 - $1,000+

Summary:

The 2012 Mercedes-Benz CLS350 is a luxurious and high-performing sedan. However, it is not without its issues. Some of the more common problems include oil leaks, timing chain stretch, transmission delays, suspension leaks, electrical harness issues, door handle issues, and instrument cluster failure. While some of these issues are minor and relatively inexpensive to fix, others can be costly and time-consuming to resolve. Potential buyers should be aware of these issues before purchasing a used CLS350.