2009 Mercedes-Benz Andare

The 2009 Mercedes-Benz GLK350 was the first model year for the GLK-Class, a compact luxury SUV. It was offered with a 3.5L V6 engine (268 hp and 258 lb-ft of torque) and a 7-speed automatic transmission (7G-Tronic). Owners generally appreciate the GLK350’s refined ride, solid build quality, and distinctive styling. However, some common complaints include relatively poor fuel economy for its class and a somewhat cramped rear seat.

Engine

3.5L V6 (M272)

• Oil Leaks from Oil Filter Housing Gasket
  • Description/Symptoms: Oil leaking from the oil filter housing, visible drips under the vehicle. Low oil level warning light may illuminate.
  • Solution: Replacement of the oil filter housing gasket.
  • Estimated Cost to Fix: $200 - $400
• Camshaft Adjuster Solenoid (Cam Magnet) Leaks
  • Description/Symptoms: Oil leaking from the camshaft adjuster solenoids (cam magnets). Can lead to oil contamination of wiring harnesses.
  • Solution: Replacement of the camshaft adjuster solenoids and cleaning of any affected wiring.
  • Estimated Cost to Fix: $150 - $300 per solenoid (typically multiple solenoids are replaced).
  • Recalls: None Found
• Check Engine Light Due to Failed Crankshaft Position Sensor
  • Description/Symptoms: The engine may stall intermittently or refuse to start. The check engine light will be illuminated. Diagnostic trouble codes (DTCs) P0335, P0336, P0337, P0338, or P0339 may be present.
  • Solution: Replacement of the crankshaft position sensor.
  • Estimated Cost to Fix: $150 - $300
  • Recalls: None Found

Transmission

7-Speed Automatic (7G-Tronic/722.9)

• Rough Shifting/Slipping
  • Description/Symptoms: Harsh or delayed shifts, particularly between 2nd and 3rd gear. Slipping during acceleration. Diagnostic trouble codes (DTCs) related to transmission gear ratio errors.
  • Solution: Replacement of the conductor plate, valve body, or entire transmission. Conductor plate issues are very common on the 722.9 transmission.
  • Estimated Cost to Fix: $500 - $2500+ (depending on the extent of the damage and required repair).
  • Recalls: None Found
• Torque Converter Failure
  • Description/Symptoms: Shuddering or vibrations, especially at lower speeds. Stalling.
  • Solution: Replacement of the torque converter.
  • Estimated Cost to Fix: $1500 - $3000
  • Recalls: None Found

Suspension

• Front Lower Control Arm Bushings Failure
  • Description/Symptoms: Clunking or rattling noise from the front suspension, especially when going over bumps. Poor handling and uneven tire wear.
  • Solution: Replacement of the front lower control arm bushings or the entire control arm assembly.
  • Estimated Cost to Fix: $300 - $600 per side.
  • Recalls: None Found

Electrical

• Faulty EIS (Electronic Ignition Switch) / Key Issues
  • Description/Symptoms: Key not recognized, difficulty starting the car, or the car not starting at all.
  • Solution: Replacement of the EIS module or key. This requires programming and can only be done by a qualified technician.
  • Estimated Cost to Fix: $700 - $1500+
  • Recalls: None Found
• Malfunctioning Power Tailgate Motor/Actuator
  • Description/Symptoms: Power tailgate not opening or closing properly, making unusual noises, or failing completely.
  • Solution: Replacement of the power tailgate motor or actuator.
  • Estimated Cost to Fix: $500 - $1000
  • Recalls: None Found

Exterior

• Rust on Trunk Lid/ Around License Plate
  • Description/Symptoms: Rust bubbles forming on the trunk lid, particularly around the license plate area.
  • Solution: Repair of the affected area by sanding, priming, and repainting. If the rust is extensive, replacement of the trunk lid may be necessary.
  • Estimated Cost to Fix: $300 - $1000+ (depending on severity and repair method).
  • Recalls: None Found

Interior

• Malfunctioning Sunroof
  • Description/Symptoms: Sunroof not opening or closing properly, getting stuck, or making excessive noise.
  • Solution: Diagnosis and repair of the sunroof mechanism, including lubrication, replacement of damaged parts (guides, motor), or complete sunroof assembly replacement.
  • Estimated Cost to Fix: $200 - $1000+ (depending on the nature of the fault).
  • Recalls: None Found

Summary

The 2009 Mercedes-Benz GLK350, while generally a reliable vehicle for its time, has common issues related to its engine (oil leaks), transmission (rough shifting), suspension (control arm bushings), and electrical systems (EIS, power tailgate). While some issues, like the camshaft adjuster solenoid leaks, are relatively inexpensive to fix, others, like transmission problems, can be quite costly. Potential buyers should be aware of these potential maintenance costs and have a pre-purchase inspection performed by a qualified mechanic familiar with Mercedes-Benz vehicles.