2021 Mercedes-Benz GLB200

The 2021 Mercedes-Benz GLB200 is a compact SUV known for its versatile interior, optional third-row seating, and stylish design. The GLB200 is equipped with a 1.3-liter turbocharged inline-4 engine producing 163 horsepower and 250 Nm of torque. Other engine options available in the GLB range include the GLB250 with a more powerful 2.0-liter turbo engine, and diesel variants in some markets. Transmission options include a 7-speed dual-clutch automatic. Owners generally appreciate the GLB’s spaciousness for its class, its comfortable ride, and its tech-forward interior. Some common dislikes include the somewhat underpowered base engine, the occasionally clunky transmission, and the higher price point compared to competitors.

Engine

1.3L Turbocharged Inline-4

• Excessive Oil Consumption
  • Description/Symptoms: Some owners have reported higher than expected oil consumption, requiring more frequent top-ups between scheduled oil changes. The issue typically manifests as low oil warnings appearing on the dashboard.
  • Solution: In some cases, dealers have performed oil consumption tests to determine the extent of the issue. Depending on the severity, potential fixes range from software updates to address potential sensor malfunctions or, in more extreme cases, engine component replacement.
  • Estimated Cost to Fix: Diagnosis: $100 - $200, Software update: $100 - $300, Engine component replacement: $2,000 - $8,000+
  • Recalls: None Found

Transmission

7-Speed Dual-Clutch Automatic

• Rough Shifting/Hesitation
  • Description/Symptoms: Some owners have experienced rough or jerky shifting, particularly at low speeds or during initial acceleration. Hesitation when accelerating from a stop is also a reported symptom.
  • Solution: Software updates to the transmission control module (TCM) are often the first step in addressing this issue. In some cases, replacement of the valve body or even the entire transmission may be required.
  • Estimated Cost to Fix: Software update: $150 - $350, Valve body replacement: $1,500 - $3,000, Transmission replacement: $5,000 - $8,000+
  • Recalls: None Found

Electrical

• MBUX Infotainment System Freezing/Crashing
  • Description/Symptoms: The Mercedes-Benz User Experience (MBUX) infotainment system can occasionally freeze, crash, or become unresponsive. This can affect navigation, audio, and vehicle settings.
  • Solution: Performing a system reset or updating the MBUX software to the latest version often resolves the issue. In some cases, the infotainment system’s control unit may need replacement.
  • Estimated Cost to Fix: Software update: $0 - $200, Control unit replacement: $800 - $2,000+
  • Recalls: None Found
• Sensor Malfunctions (Parking Sensors, Blind Spot Monitoring)
  • Description/Symptoms: Malfunctions with parking sensors or blind spot monitoring systems can occur, leading to false alarms or a complete failure of the system.
  • Solution: Diagnosis to identify the faulty sensor. Replacement of the malfunctioning sensor is typically required.
  • Estimated Cost to Fix: Diagnosis: $100 - $200, Sensor replacement: $300 - $800+ (per sensor)
  • Recalls: None Found

Interior

• Rattling Noises
  • Description/Symptoms: Some owners have reported rattling noises emanating from various areas within the interior, such as the dashboard, door panels, or rear cargo area.
  • Solution: Identifying the source of the rattle is crucial. The fix often involves tightening loose components, applying felt tape to contact points, or replacing faulty clips or fasteners.
  • Estimated Cost to Fix: $100 - $500+ (depending on the complexity of the repair)
  • Recalls: None Found
• Malfunctioning Seat Adjustments
  • Description/Symptoms: Power seat adjustments may malfunction, failing to move the seat in certain directions or becoming completely inoperative.
  • Solution: Diagnosis to check for faulty wiring, motors, or switches. Replacement of the malfunctioning component is usually necessary.
  • Estimated Cost to Fix: Diagnosis: $100 - $200, Component replacement: $300 - $1,000+
  • Recalls: None Found

Exterior

• Malfunctioning Power Liftgate
  • Description/Symptoms: The power liftgate may fail to open or close properly, or may stop functioning altogether.
  • Solution: Diagnosis to check for faulty struts, sensors, or the liftgate motor. Replacement of the malfunctioning component is typically required.
  • Estimated Cost to Fix: Diagnosis: $100 - $200, Component replacement: $400 - $1,200+
  • Recalls: None Found

Suspension

No Issues Found

Summary

The 2021 Mercedes-Benz GLB200, while offering a compelling blend of practicality and luxury, does exhibit some common issues. The most frequently reported problems involve the transmission’s rough shifting, electrical glitches with the MBUX system and sensors, and interior rattles. Engine issues such as oil consumption are less frequent but can be costly to address. The severity of these issues ranges from minor inconveniences to potentially expensive repairs. Potential buyers should be aware of these potential problems and thoroughly inspect any used GLB200 before purchase.