Mercedes-Benz Reviews

Despite the dealership repairing the harness was left disconnected by their technician, I was still charged diagnostic fees when I returned to have the issue addressed. Just after paying a diagnostic fee to find what they did wrong, Being charged diagnose fees for catastrophic failure caused by the dealership's own documented oversight is a complete failure of customer service.

Throughout this entire process, the service felt purely transactional. Mercedes Corp was no help every phone call sounded like they were reading from a script. There is a clear feeling that if you aren't purchasing an E-Class or higher, you are treated as a low priority. Every conversation lacked genuine care, and they made me feel like just another number rather than a valued client. I have since traded my vehicle and moved over to Audi, where the level of service and professionalism is night and day compared to what I experienced here. If you expect thorough work and to be treated with respect regardless of the vehicle model you drive, I recommend looking elsewhere.

In November 2024, I received a “Coolant Too Hot – Stop Vehicle” warning related to the high-voltage system. Since then, the situation has been extremely frustrating and unresolved despite numerous repair attempts, including multiple service visits, repeated “no issue found” responses, full dashboard removal to access and replace wiring, and several software resets and updates.

In January 2026, the dealership diagnosed an internal failure in the MBUX system and replaced the control unit entirely. Despite this major repair, the issue continued. In March 2026, I was informed that there is currently no fix available and that a potential solution may come in a future software update. In April 2026, I spent several hours at the dealership attempting to resolve the situation. A replacement vehicle was discussed, I contacted my insurance to add the new car, and my Mercedes app was updated — only to be told afterward that the lease could not be canceled and no resolution would be provided.

Additionally, every time I was provided with a loaner vehicle, I was required to interrupt my work and personal responsibilities to return it immediately upon request. I was repeatedly warned that failure to return the loaner on time would result in charges of approximately $150 per day, adding further stress during an already difficult situation.

Mercedes-Benz Financial Services later issued a formal response stating that I am still contractually obligated to continue making my monthly payments (approximately $800/month) under any circumstance. The letter specifically states that payments must continue “even if the vehicle is stolen, destroyed, or does not satisfactorily perform,” and that any issues must be addressed with the manufacturer. In other words, I am required to keep paying for this vehicle regardless of whether it is safe, functional, or even usable.

At this point, I am left in a situation where: The dealership directs me to the manufacturer. The manufacturer has not provided a resolution. The finance company requires payment no matter the condition of the vehicle. To make matters more concerning: The vehicle is associated with a high-voltage battery recall. Charging is restricted and cannot safely be done at home. I have a minor daughter who relies on this vehicle for daily transportation. Being placed in a position where I must continue driving a vehicle with known and unresolved safety concerns while continuing to make full payments is extremely stressful. I expected a premium brand like Mercedes-Benz to stand behind its product and prioritize safety and customer care. Unfortunately, that has not been my experience. I hope this review helps other consumers make informed decisions.