Mercedes-benz Sprinter 2500 problems

Common Mercedes-benz Sprinter 2500 problems

The Mercedes-Benz Sprinter 2500 is known for its dependability and popularity among drivers. However, as with any vehicle, it has its share of issues that may arise. Here are some of the common problems with the Mercedes-Benz Sprinter 2500, based on complaints from owners:

• Faulty DEF Heater: A common issue in the 2020 model and newer Sprinters is a faulty DEF (Diesel Exhaust Fluid) heater. The heater element burns out, causing the engine light to come on. This issue can be more problematic during winter months and in colder climates, potentially leading to an active start countdown.

• Broken Exhaust Flex Pipe: This is a common problem for the 2007 or the 906 chassis with the V6 OM642 diesel engine. Leaks from the exhaust, coming from the flex pipe, can melt the nearby wiring, causing the engine to shut off, not restart, and start the countdown. This issue can be more prevalent in 2007 to 2009 models, where the flex pipe is part of the catalytic converter. In 2010 and newer models, it's a part of the Diesel Particular Filter.

• No Start Count Down Dep-Counter: The Sprinter 2010 and newer models with Bluetec may experience a no start countdown if there are issues with the DEF level or Nox sensors and other components related to the DEF/Adblue. If the countdown has started, it's recommended to have the van diagnosed before it gets to the last few remaining start cycles.

• Clogged DPF: The DPF, or Diesel Particular Filter, in the Sprinter can gather soot until it reaches a level to perform regeneration. If the ash builds up inside the DPF, it will not burn out if the wrong engine oil is used. This can lead to a clogged DPF and restricted exhaust flow. If the content of ash is too high, the only option may be to replace the DPF.

• Reduced Power / Limp Mode: Sprinters have a Limp Mode, which is a safety feature to protect the engine from damage. It can be activated if the engine is pushed too hard. When the MIL illuminates or the check engine light starts flashing, it's an indicator of Limp Mode. It's trying to lower engine power to prevent further damage to affected components.

• Oil Cooler Leaks: Oil cooler leaks are common on the 2007 to present models with the OM642 engine. The oil cooler seals are where most of the engine oil leaks take place. These leaks can be expensive to repair due to the difficulty of reaching the oil cooler. The turbocharger, intake manifold, and other parts have to be removed to gain access to it.

• Glow Plug Problems: Just like all diesel engines, the glow plugs and modules in the Sprinter will not last forever. Sometimes the plugs will break off in the cylinder head. There is a special tool to drill out and extract the glow plug without removing the cylinder head.

• Injector Issue or Black Death: Another problem, known as "Black Death," is the copper seal ring which is located in the middle of the injectors. If it deteriorates, combustion gasses can escape, causing a black tar and coal-like material to accumulate over the fuel injectors. This can lead to reduced power and other issues.

• Bad EGR Valve: Some owners have reported issues with the EGR valve, which can lead to the vehicle being in the dealership for extended periods. This issue can be difficult to resolve due to supply chain problems and the time it takes to manufacture the necessary parts.

These are some of the common problems reported by Mercedes-Benz Sprinter 2500 owners. Regular maintenance and addressing issues promptly can help ensure the longevity and reliability of the vehicle.