2017 Mercedes-Benz SLC180

The 2017 Mercedes-Benz SLC180 is a sporty roadster that offers a stylish design and engaging driving experience. The SLC180 is powered by a 1.6-liter turbocharged four-cylinder engine producing 156 hp and 250 Nm of torque. Other engine options available for the 2017 SLC range include the SLC200 (2.0L turbo four-cylinder), SLC300 (2.0L turbo four-cylinder), and the AMG SLC43 (3.0L V6 biturbo). All engine options typically come with a 9G-TRONIC automatic transmission. Owners appreciate the SLC180 for its elegant styling, comfortable ride, and retractable hardtop, which allows for open-air driving. Some common complaints include limited rear visibility, a cramped interior, and the infotainment system can be difficult to use.

Engine

1.6L Turbocharged Four-Cylinder (M274)

• Oil Leaks from Valve Cover Gasket
  • Description/Symptoms: Oil leaking from the valve cover gasket, resulting in a burning smell and potential oil loss.
  • Solution: Replace the valve cover gasket.
  • Estimated Cost to Fix: $200 - $400
  • Recalls: None Found
• Camshaft Adjuster Solenoid Failure
  • Description/Symptoms: Check engine light illumination, rough idling, and decreased engine performance.
  • Solution: Replace the faulty camshaft adjuster solenoid.
  • Estimated Cost to Fix: $150 - $350
  • Recalls: None Found

Transmission

9G-TRONIC Automatic (725.0)

• Rough Shifting
  • Description/Symptoms: Harsh or jerky shifts between gears, especially at low speeds.
  • Solution: Perform a transmission fluid flush and filter change. If the problem persists, valve body replacement or transmission rebuild might be necessary.
  • Estimated Cost to Fix: $300 (fluid flush) to $2,000+ (valve body/rebuild)
  • Recalls: None Found
• Torque Converter Issues
  • Description/Symptoms: Shuddering during acceleration, especially at low speeds.
  • Solution: Replace the torque converter.
  • Estimated Cost to Fix: $1,500 - $3,000
  • Recalls: None Found

Suspension

• Front Suspension Lower Control Arm Bushing Wear
  • Description/Symptoms: Clunking noise when driving over bumps, uneven tire wear, and vague steering.
  • Solution: Replace the worn control arm bushings or the entire control arm assembly.
  • Estimated Cost to Fix: $200 - $500 per side
  • Recalls: None Found
• Rear Shock Absorber Leaks
  • Description/Symptoms: Reduced damping, bouncy ride, and visible oil leaks on the shock absorber.
  • Solution: Replace the rear shock absorbers.
  • Estimated Cost to Fix: $300 - $600 per pair
  • Recalls: None Found

Electrical

• Battery Drain Issues
  • Description/Symptoms: The vehicle battery drains quickly, especially when parked for extended periods.
  • Solution: Diagnose and repair parasitic drain. This could be caused by a faulty module, improperly installed aftermarket accessories, or a failing battery.
  • Estimated Cost to Fix: $100 - $500+ depending on the source of the drain
  • Recalls: None Found
• Retractable Hardtop Malfunctions
  • Description/Symptoms: The retractable hardtop fails to open or close properly, gets stuck midway, or displays error messages.
  • Solution: Inspect and repair the hydraulic system, including the pump, cylinders, and hoses. Check and reset the roof control module.
  • Estimated Cost to Fix: $500 - $2,000+
  • Recalls: None Found

Exterior

• Side Mirror Motor Failure
  • Description/Symptoms: The side mirror fails to adjust or fold electrically.
  • Solution: Replace the faulty side mirror motor or the entire side mirror assembly.
  • Estimated Cost to Fix: $250 - $700
  • Recalls: None Found

Interior

• Infotainment Screen Delamination
  • Description/Symptoms: The infotainment screen shows signs of delamination, with bubbling or separation of layers.
  • Solution: Replace the infotainment screen.
  • Estimated Cost to Fix: $800 - $1,500
  • Recalls: None Found
• Heater Core Failure
  • Description/Symptoms: Cabin does not heat, coolant smell, fogged up windows.
  • Solution: Replace the heater core.
  • Estimated Cost to Fix: $800 - $2000
  • Recalls: None Found

Summary

The 2017 Mercedes-Benz SLC180 presents a mix of potential issues. Engine oil leaks and camshaft adjuster solenoid failures may lead to performance reductions and require repairs. Transmission issues, particularly rough shifting and torque converter problems, might necessitate fluid changes or more extensive repairs. Suspension problems, such as worn control arm bushings and leaking shock absorbers, can impact ride comfort and handling. Electrical issues, including battery drain and retractable hardtop malfunctions, can cause inconvenience and expensive fixes. Interior issues like infotainment screen delamination can be a cosmetic issue while heater core failures can be inconvenient. The severity and cost of these potential problems range from minor to substantial, so it’s essential for prospective buyers to thoroughly inspect the vehicle and obtain a pre-purchase inspection.