2010 Mercedes-Benz GLK350

The 2010 Mercedes-Benz GLK350 is a compact luxury SUV known for its distinctive boxy styling and comfortable ride. The main engine option is a 3.5-liter V6, producing 268 horsepower and 258 lb-ft of torque, paired with a 7-speed automatic transmission. Some owners appreciate its solid build quality and Mercedes-Benz prestige, while others dislike its somewhat cramped rear seats and dated infotainment system. While no other engine options are available, the GLK350 came in either RWD or AWD configurations.

Engine

3.5L V6

• Camshaft Adjuster Solenoid (Cam Magnet) Failure
  • Description/Symptoms: Check engine light illuminated. Rough running engine. Reduced engine performance.
  • Solution: Replace the faulty camshaft adjuster solenoid (cam magnet).
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found
• Oil Filter Housing Leak
  • Description/Symptoms: Oil leak near the top of the engine. Burning oil smell. Low oil level.
  • Solution: Replace the oil filter housing and gasket.
  • Estimated Cost to Fix: $300 - $600+
  • Recalls: None Found

Transmission

7G-Tronic 7-Speed Automatic

• Torque Converter Failure
  • Description/Symptoms: Shuddering or vibrations at low speeds. Difficulty shifting gears. Transmission slipping.
  • Solution: Replace the torque converter.
  • Estimated Cost to Fix: $1,500 - $3,500+
  • Recalls: None Found
• Valve Body Issues
  • Description/Symptoms: Harsh or erratic shifting. Delay in engaging gears. Transmission slipping. Check engine light illuminated with transmission-related codes.
  • Solution: Replace or rebuild the valve body.
  • Estimated Cost to Fix: $800 - $2,000+
  • Recalls: None Found

Suspension

• Front Strut Mount Failure
  • Description/Symptoms: Clunking noise from the front suspension when going over bumps. Poor handling.
  • Solution: Replace the front strut mounts.
  • Estimated Cost to Fix: $300 - $600+ (per side)
  • Recalls: None Found
• Rear Subframe Corrosion (Salt Belt States)
  • Description/Symptoms: Rusting or cracking of the rear subframe, potentially leading to structural failure. Noise from the rear.
  • Solution: Replacement of the rear subframe
  • Estimated Cost to Fix: $1,500 - $4,000+
  • Recalls: None Found

Electrical

• Blower Motor Resistor Failure
  • Description/Symptoms: Air conditioning or heat only works on certain settings, or not at all.
  • Solution: Replace the blower motor resistor.
  • Estimated Cost to Fix: $100 - $300+
  • Recalls: None Found
• EIS (Electronic Ignition Switch) Failure
  • Description/Symptoms: Key not recognized. Car will not start. Steering wheel may not unlock.
  • Solution: Replace the EIS. May require programming by a qualified technician.
  • Estimated Cost to Fix: $800 - $1,500+
  • Recalls: None Found

Exterior

• No Issues Found

Interior

• Sunroof Issues
  • Description/Symptoms: Sunroof motor failure. Sunroof jammed or not opening/closing properly. Leaks.
  • Solution: Repair or replace the sunroof motor or associated components.
  • Estimated Cost to Fix: $300 - $1,000+
  • Recalls: None Found

Summary

The 2010 Mercedes-Benz GLK350, while generally reliable, has some common issues that prospective buyers should be aware of. Engine issues such as camshaft adjuster solenoid failure and oil filter housing leaks can occur, though are relatively inexpensive to fix. Transmission problems, especially with the torque converter and valve body, can be more costly. Suspension issues, electrical glitches, and sunroof malfunctions are also potential areas of concern. Before purchasing, a thorough inspection by a qualified mechanic is recommended, especially checking for rust or corrosion on the rear subframe in colder climates.