2020 Volkswagen Volksbus

The 2020 Volkswagen Volksbus is a popular chassis used for building various types of buses and recreational vehicles. It typically features a robust diesel engine designed for heavy-duty use. One common engine option for this vehicle is the MAN D0836 engine, which is a 6.9-liter inline-6 diesel engine producing around 290 horsepower and 811 lb-ft of torque. A defining characteristic of the Volksbus is its adaptability; customers and upfitters appreciate the reliable platform it offers for creating specialized vehicles. However, some owners have expressed concerns about the availability of specific parts and the complexity of the engine’s emissions control systems.

Engine

MAN D0836 Diesel Engine

• Diesel Particulate Filter (DPF) Issues
  • Description/Symptoms: The DPF can become clogged prematurely, leading to reduced engine performance, increased fuel consumption, and frequent regeneration cycles. Warning lights related to the exhaust system will illuminate on the dashboard.
  • Solution: Replacement of the DPF unit, along with ensuring proper maintenance and adhering to recommended driving cycles to facilitate DPF regeneration.
  • Estimated Cost to Fix: $3,000 - $6,000+
  • Recalls: None Found
• EGR Valve Failure
  • Description/Symptoms: Malfunctioning Exhaust Gas Recirculation (EGR) valve causing rough idling, poor acceleration, and increased emissions. The engine may also stall.
  • Solution: Replacement of the faulty EGR valve and cleaning of the EGR cooler.
  • Estimated Cost to Fix: $800 - $1,500+
  • Recalls: None Found

Transmission

ZF 6-Speed Automatic Transmission

• Shift Solenoid Failure
  • Description/Symptoms: Harsh or erratic shifting, failure to shift into certain gears, or transmission slipping. Diagnostic codes related to shift solenoids will be present.
  • Solution: Replacement of the faulty shift solenoid(s) within the transmission. A transmission fluid flush and filter replacement are recommended at the same time.
  • Estimated Cost to Fix: $500 - $1,200+
  • Recalls: None Found
• Torque Converter Issues
  • Description/Symptoms: Shuddering at low speeds, stalling, or unusual noises coming from the transmission.
  • Solution: Torque converter replacement. It’s often recommended to rebuild or replace the entire transmission, depending on the vehicle’s mileage and condition.
  • Estimated Cost to Fix: $2,000 - $5,000+
  • Recalls: None Found

Suspension

• Air Suspension Compressor Failure (If Equipped)
  • Description/Symptoms: Vehicle sagging on one or more corners, failure of the air suspension to adjust ride height, or an illuminated warning light on the dashboard. The air compressor may be unusually loud or not functioning at all.
  • Solution: Replacement of the air suspension compressor. Also check for leaks in the air lines and air struts/bags.
  • Estimated Cost to Fix: $800 - $2,000+
  • Recalls: None Found

Electrical

• Wiring Harness Issues
  • Description/Symptoms: Intermittent electrical problems, such as malfunctioning lights, sensors, or other electrical components. Corrosion or damage to the wiring harness is often found.
  • Solution: Repair or replacement of the damaged sections of the wiring harness. This may involve tracing wires, repairing connections, and protecting the harness from further damage.
  • Estimated Cost to Fix: $200 - $1,500+ (depending on the extent of the damage)
  • Recalls: None Found
• Sensor Malfunctions
  • Description/Symptoms: Faulty readings from various sensors, such as the mass airflow (MAF) sensor, oxygen (O2) sensors, or temperature sensors, leading to poor engine performance or warning lights.
  • Solution: Replacement of the malfunctioning sensor.
  • Estimated Cost to Fix: $100 - $500+ (per sensor)
  • Recalls: None Found

Exterior

• No Issues Found

Interior

• HVAC Blower Motor Failure
  • Description/Symptoms: The HVAC blower motor stops working, resulting in no airflow from the vents. The blower motor may also produce unusual noises before failing completely.
  • Solution: Replacement of the HVAC blower motor.
  • Estimated Cost to Fix: $200 - $600+
  • Recalls: None Found

Summary

The 2020 Volkswagen Volksbus, especially when equipped with the MAN D0836 diesel engine and ZF 6-speed automatic transmission, can experience a range of issues related to its engine, transmission, suspension, and electrical systems. The DPF, EGR valve, shift solenoids, torque converter, air suspension compressor, and wiring harnesses are particularly prone to problems. These issues can range from relatively minor sensor malfunctions to more costly repairs such as DPF or transmission replacement. Potential buyers should be aware of these common complaints and carefully inspect the vehicle’s maintenance history and current condition before purchasing.