2020 Mercedes-Benz Sprinter 3500

The 2020 Mercedes-Benz Sprinter 3500 is a versatile van popular for commercial use, camper conversions, and passenger transport. It’s known for its spacious interior, customizable configurations, and relatively smooth ride compared to other vans. However, owners have reported some common issues. Available engines include a 3.0L V6 diesel engine producing 188 hp and 325 lb-ft of torque. People appreciate the Sprinter’s cargo capacity and customization options, but some dislike its size and potential for reliability issues.

Engine

3.0L V6 Diesel (OM642)

• Diesel Exhaust Fluid (DEF) System Issues
  • Description/Symptoms: Malfunction Indicator Light (MIL) illuminated, “Check Engine” light on, DEF level sensor failure, DEF injector clogging, DEF quality sensor malfunction, leading to limp mode or inability to start.
  • Solution: Replacement of faulty sensors (level, quality), injector cleaning or replacement, DEF pump replacement, or complete DEF tank assembly replacement. Diagnosis using Mercedes-Benz diagnostic tools is crucial.
  • Estimated Cost to Fix: $200 - $2000+ depending on the component.
  • Recalls: None Found
• Oil Leaks
  • Description/Symptoms: Visible oil leaks from various locations on the engine, including the oil cooler, oil filter housing, and valve cover gaskets. Low oil level warning lights.
  • Solution: Replacement of gaskets and seals at the leak locations. Proper tightening of fasteners and inspection of components for cracks or damage.
  • Estimated Cost to Fix: $150 - $800+ depending on the location and complexity of the repair.
  • Recalls: None Found
• Turbocharger Issues
  • Description/Symptoms: Loss of power, whistling noises from the engine, “Check Engine” light, and potential turbocharger failure.
  • Solution: Replacement of the turbocharger. Inspection of the oil supply line to the turbocharger for blockage.
  • Estimated Cost to Fix: $1500 - $3000+
  • Recalls: None Found

Transmission

7G-Tronic Automatic Transmission

• Torque Converter Failure
  • Description/Symptoms: Shuddering or vibration during acceleration, especially at low speeds. Delayed or harsh shifting. Transmission slipping.
  • Solution: Replacement of the torque converter. Flushing the transmission fluid and inspecting for debris.
  • Estimated Cost to Fix: $1500 - $3000+
  • Recalls: None Found
• Valve Body Issues
  • Description/Symptoms: Erratic shifting, harsh shifts, delayed engagement of gears, transmission slipping.
  • Solution: Replacement or rebuild of the valve body. In some cases, a software update may address the issue.
  • Estimated Cost to Fix: $800 - $2000+
  • Recalls: None Found

Suspension

• Rear Leaf Spring Issues
  • Description/Symptoms: Sagging rear suspension, especially when loaded. Clunking noises from the rear suspension.
  • Solution: Replacement of worn or broken leaf springs. Upgrading to heavier-duty leaf springs for vehicles frequently carrying heavy loads.
  • Estimated Cost to Fix: $500 - $1500+ per side.
  • Recalls: None Found

Electrical

• Sensor Failures
  • Description/Symptoms: Various warning lights illuminated on the dashboard (ABS, ESP, TPMS, etc.). Malfunctions of electronic systems.
  • Solution: Diagnosis using Mercedes-Benz diagnostic tools to identify the faulty sensor. Replacement of the faulty sensor.
  • Estimated Cost to Fix: $100 - $500+ per sensor.
  • Recalls: None Found
• Wiring Harness Issues
  • Description/Symptoms: Intermittent electrical problems, such as lights flickering, systems malfunctioning, or difficulty starting.
  • Solution: Inspection of wiring harnesses for damage, corrosion, or loose connections. Repair or replacement of damaged wiring.
  • Estimated Cost to Fix: $200 - $1000+ depending on the extent of the damage.
  • Recalls: None Found
• Battery Issues
  • Description/Symptoms: Difficulty starting the engine, especially in cold weather. Rapid battery drain.
  • Solution: Battery replacement, ensure the correct specification and CCA (Cold Cranking Amps) rating. Diagnosis and repair of parasitic draws.
  • Estimated Cost to Fix: $200 - $500+
  • Recalls: None Found

Exterior

• Sliding Door Issues
  • Description/Symptoms: Difficulty opening or closing the sliding door, sticking, binding, or excessive noise.
  • Solution: Adjustment of door latches and hinges. Lubrication of moving parts. Replacement of worn rollers or guides.
  • Estimated Cost to Fix: $100 - $500+
  • Recalls: None Found

Interior

• HVAC Malfunctions
  • Description/Symptoms: Inconsistent heating or cooling, failure of the blower motor, or issues with the temperature control system.
  • Solution: Diagnosis of the HVAC system. Replacement of faulty components such as the blower motor, resistor, or control module. Refrigerant recharge.
  • Estimated Cost to Fix: $200 - $800+
  • Recalls: None Found

Summary

The 2020 Mercedes-Benz Sprinter 3500 has some potential issues that owners should be aware of. Engine and transmission problems, particularly related to the DEF system and torque converter, can be costly to repair. Electrical issues can also be common and frustrating. While the Sprinter offers versatility and customization, potential buyers should factor in the possibility of these repairs. The severity ranges from minor sensor replacements to major component failures, with costs ranging from a few hundred to several thousand dollars. A thorough inspection and maintenance history review are recommended before purchasing.