2020 Mercedes-Benz Gran Viale LE

The 2020 Mercedes-Benz Gran Viale LE is a Class B RV built on the Mercedes-Benz Sprinter chassis. It’s powered by a 3.0-liter Turbo Diesel V6 engine producing 188 horsepower and 325 lb-ft of torque, paired with a 5-speed automatic transmission. Owners generally appreciate its compact size for maneuverability, fuel efficiency (for an RV), and the overall Mercedes-Benz build quality. Common dislikes often revolve around the price point compared to other RVs, the relatively small living space, and some issues related to the Sprinter chassis.

Engine

3.0L Turbo Diesel V6

• Diesel Particulate Filter (DPF) Issues
  • Description/Symptoms: Frequent DPF regeneration cycles, leading to reduced fuel economy and eventual clogging. The “Check Engine” light may illuminate, accompanied by codes related to DPF pressure or soot accumulation. In severe cases, the engine may enter limp mode.
  • Solution: Attempting a forced regeneration by driving at highway speeds for an extended period may temporarily alleviate the issue. However, a clogged DPF may require professional cleaning or replacement.
  • Estimated Cost to Fix: $500 - $2500+
  • Recalls: None Found
• Oil Cooler Leaks
  • Description/Symptoms: Oil leaks are common around the oil cooler, often dripping onto the engine or ground. The smell of burning oil may also be present. Low oil levels can trigger a warning light on the dashboard.
  • Solution: Replacing the oil cooler and related gaskets.
  • Estimated Cost to Fix: $800 - $1500
  • Recalls: None Found

Transmission

5-Speed Automatic

• Torque Converter Shudder
  • Description/Symptoms: A noticeable shudder or vibration, particularly during low-speed acceleration or when the transmission is under load. This can be more pronounced when the transmission is cold.
  • Solution: Replacing the torque converter. Sometimes a transmission flush and fluid change helps, but it is usually only a temporary fix.
  • Estimated Cost to Fix: $1500 - $3000+
  • Recalls: None Found

Suspension

• Rear Suspension Sag
  • Description/Symptoms: The rear of the vehicle sagging, especially when loaded with camping gear or passengers. This can negatively impact handling and ride quality.
  • Solution: Upgrading the rear springs, adding air suspension, or installing helper springs.
  • Estimated Cost to Fix: $500 - $2000+
  • Recalls: None Found

Electrical

• Sensor Malfunctions
  • Description/Symptoms: Erratic sensor readings leading to inaccurate data being sent to the engine control unit (ECU). This can cause a wide variety of issues including the engine going into “limp” mode.
  • Solution: Replacing the faulty sensor.
  • Estimated Cost to Fix: $100 - $500+
  • Recalls: None Found
• Auxiliary Battery Issues
  • Description/Symptoms: Failure of the house batteries to charge properly, leading to a loss of power for the RV’s appliances and systems.
  • Solution: Replacing the auxiliary batteries or repairing the charging system.
  • Estimated Cost to Fix: $200 - $1000+
  • Recalls: None Found

Exterior

• Awning Malfunctions
  • Description/Symptoms: The electric awning failing to extend or retract properly due to motor or mechanism issues.
  • Solution: Repairing or replacing the awning motor or mechanism.
  • Estimated Cost to Fix: $300 - $1000+
  • Recalls: None Found

Interior

• Water Pump Failure
  • Description/Symptoms: The water pump failing to provide water pressure to the sinks, shower, and toilet.
  • Solution: Replacing the water pump.
  • Estimated Cost to Fix: $100 - $300+
  • Recalls: None Found
• Refrigerator Issues
  • Description/Symptoms: The refrigerator failing to cool properly, either on propane or electric power.
  • Solution: Repairing or replacing the refrigerator components or the entire refrigerator.
  • Estimated Cost to Fix: $200 - $2000+
  • Recalls: None Found

Summary

The 2020 Mercedes-Benz Gran Viale LE, while generally well-regarded, experiences some common issues primarily related to the Sprinter chassis components. The most concerning are the engine DPF issues, transmission torque converter shudder, and electrical gremlins. Repair costs can vary significantly depending on the severity and complexity of the problem, potentially ranging from a few hundred dollars to several thousand. Addressing these proactively can help ensure a more reliable and enjoyable RV experience.