Brake light failure in the 2018 Mercedes Vito: experience and advice on self-repair

Hello, I drive a 2016 Mercedes Sprinter and had similar problems. As soon as the "brake light implausible" signal came on, I was finally able to trace the problem back to the footwell module. It was a serious problem because the module is responsible for numerous functions in the car, including the brake lights. Last time at the garage, it was actually the footwell module that was faulty. The mechanic had to replace it. It was quite a job to replace it as it is located in the footwell on the driver's side and has many cables and other components connected to it. It wasn't a quick fix, but everything worked perfectly again afterwards. The most important thing to remember is that you shouldn't leave your car on the road while the brake light is not working. It's pretty serious. Hope this helps you. Regards.

(Translated from German)

Hello, thanks for the information. Now at least I know what I have to orient myself on. Your experience with the footwell module sounds like quite a big procedure - I imagine it would be challenging to do something like that yourself. If you don't mind me asking, can you remember how expensive the repair was when the mechanic replaced the footwell module? And have you had any other problems since then? Regards.

(Translated from German)

Hello, sure, no problem. Repairing the footwell module made my pocket €475 lighter. I'm telling you, it was quite a bite, but considering how important the part is to the functionality of my Sprinter, it was well worth it. And no, I haven't had any more problems since. Of course, the "brake light implausible" signal also disappeared as soon as the module was repaired. Since then, my braking system has been running smoothly and I can drive safely on the road. Hope this helps you. Regards.

(Translated from German)

Hi, Wow, that's a bit expensive, but if it fixes the problem for good, then I'll take it. It's reassuring to hear that you haven't had any more problems after replacing the module. I think I will have to go to a mechanic after all as I don't want to take the risk of damaging something even more by trying it myself. Thanks for sharing your experiences with me - they have helped me a lot. Regards.

(Translated from German)