NHTSA Complaint #11603630 — 2023 MERCEDES-BENZ SPRINTER 2500

I am writing to express my concern and seek assistance regarding a significant issue with my nearly new commercial vehicle, a Mercedes-Benz Sprinter 2500, purchased in 2023. The vehicle currently has 118,000 miles. Recently, I encountered problems with the Diesel Exhaust Fluid (DEF) system. Upon taking the vehicle to the dealership where I originally purchased it, they conducted a diagnostic and informed me that the entire DEF system needs to be replaced, estimating the repair cost to be around $11,000 to $12,000. While I understand that repairs can be costly, my primary concern is that the dealership is not addressing the root cause of the problem but instead opting to replace the entire system without a thorough investigation. Given the relatively low mileage and age of the vehicle, this issue is both unexpected and concerning. I believe that such a significant problem with a critical system should be thoroughly investigated to determine if it is an isolated incident or indicative of a broader issue affecting similar models. I am requesting your assistance in the following ways: 1. Thorough Investigation: Ensure a comprehensive investigation is conducted to identify the specific cause of the DEF system failure. 2. Potential Recall: Evaluate whether this issue is widespread and, if so, consider initiating a recall campaign. 3. Repair Support: Provide support or coverage for the necessary repairs given the nature and extent of the issue. I have attached all relevant documentation, including the dealership’s diagnostic report and repair estimate. I appreciate your prompt attention to this matter and look forward to your response.