2011 Mercedes-Benz Boxer 40

The 2011 Mercedes-Benz Sprinter, known as the “Boxer 40” in some markets, is a popular choice for commercial use due to its versatility and cargo capacity. Engine options for the 2011 Sprinter typically included a 2.1-liter inline-4 diesel engine (OM651) producing around 129 horsepower and 225 lb-ft of torque, and a 3.0-liter V6 diesel engine (OM642) producing approximately 188 horsepower and 325 lb-ft of torque. Transmission options generally consisted of a 5-speed automatic or a 6-speed manual, depending on the engine and market. Owners often appreciate the Sprinter’s spacious interior, good fuel economy (for its class), and comfortable ride. Some common dislikes include its relatively high price point, potential for expensive repairs, and occasional electrical quirks.

Engine

2.1L Inline-4 Diesel (OM651)

• Injector Failure
  • Description/Symptoms: Rough idling, misfires, decreased fuel economy, and potential engine stalling. Fault codes related to injector performance may be present.
  • Solution: Replacement of faulty injectors. It is often recommended to replace all injectors at the same time to ensure balanced performance.
  • Estimated Cost to Fix: $400 - $800+ per injector.
  • Recalls: None Found
• Timing Chain Issues
  • Description/Symptoms: Rattling noises, particularly on startup. In severe cases, timing chain failure can lead to significant engine damage.
  • Solution: Replacement of the timing chain, tensioner, and guides.
  • Estimated Cost to Fix: $1500 - $3000+
  • Recalls: None Found

3.0L V6 Diesel (OM642)

• Oil Cooler Leaks
  • Description/Symptoms: Oil leaks, often observed near the front of the engine. A burning oil smell may also be present.
  • Solution: Replacement of the oil cooler and associated gaskets. This is a labor-intensive job due to the cooler’s location.
  • Estimated Cost to Fix: $1000 - $2500+
  • Recalls: None Found
• Swirl Motor Failure
  • Description/Symptoms: Check engine light, reduced engine performance, and potential limp mode. Fault codes related to the swirl flaps or swirl motor are common.
  • Solution: Replacement of the swirl motor or swirl flap assembly. Some aftermarket options offer delete kits to bypass the system.
  • Estimated Cost to Fix: $500 - $1500+
  • Recalls: None Found

Transmission

5-Speed Automatic (NAG1/W5A580)

• Torque Converter Issues
  • Description/Symptoms: Shuddering during gear changes, slipping, or complete failure to engage gears.
  • Solution: Replacement of the torque converter.
  • Estimated Cost to Fix: $1500 - $3000+
  • Recalls: None Found
• Valve Body Problems
  • Description/Symptoms: Harsh or delayed shifting, erratic gear selection, or complete transmission failure.
  • Solution: Replacement or rebuild of the valve body.
  • Estimated Cost to Fix: $800 - $2000+
  • Recalls: None Found

Suspension

• Front Strut Failure
  • Description/Symptoms: Clunking noises, especially when going over bumps. Reduced ride quality and handling.
  • Solution: Replacement of the front struts.
  • Estimated Cost to Fix: $400 - $800+ per pair
  • Recalls: None Found
• Rear Leaf Spring Sagging or Breakage
  • Description/Symptoms: Vehicle sits lower in the rear, reduced load-carrying capacity, and potential clunking noises.
  • Solution: Replacement of the rear leaf springs.
  • Estimated Cost to Fix: $500 - $1200+ per pair
  • Recalls: None Found

Electrical

• Glow Plug Failure
  • Description/Symptoms: Difficult starting, especially in cold weather. Check engine light and glow plug-related fault codes.
  • Solution: Replacement of faulty glow plugs. It is often recommended to replace all glow plugs at the same time.
  • Estimated Cost to Fix: $200 - $500+
  • Recalls: None Found
• EGR Valve Issues
  • Description/Symptoms: Check engine light, rough idling, decreased engine performance, and excessive smoke.
  • Solution: Replacement of the EGR valve.
  • Estimated Cost to Fix: $300 - $800+
  • Recalls: None Found

Exterior

• Sliding Door Problems
  • Description/Symptoms: Difficulty opening or closing, sticking, or requiring excessive force.
  • Solution: Lubrication of the door tracks and rollers. Replacement of damaged rollers or hinges.
  • Estimated Cost to Fix: $100 - $500+
  • Recalls: None Found
• Rust Issues
  • Description/Symptoms: Rust formation, especially around wheel wells, door seams, and underbody.
  • Solution: Rust repair and prevention measures.
  • Estimated Cost to Fix: Varies greatly depending on severity.
  • Recalls: None Found

Interior

• HVAC Blower Motor Failure
  • Description/Symptoms: No air blowing from the vents or intermittent operation.
  • Solution: Replacement of the blower motor.
  • Estimated Cost to Fix: $200 - $500+
  • Recalls: None Found
• Power Window Malfunctions
  • Description/Symptoms: Windows that do not go up or down, or windows that only move intermittently.
  • Solution: Replacement of the window motor or regulator.
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found

Summary

The 2011 Mercedes-Benz Sprinter (Boxer 40) can be a reliable workhorse, but it’s prone to some potentially costly issues. Engine problems, particularly with the diesel engines, are common and can involve expensive repairs like injector or oil cooler replacements. Transmission issues are also a concern. Suspension and electrical problems are also prevalent. Rust is a known issue and should be inspected. While these issues are not present in every vehicle, potential buyers should be aware of them and carefully inspect any used Sprinter before purchase. The severity and cost of these issues can vary, with some repairs costing several thousand dollars.