I have to say that the situation with MB is utterly disgraceful - nothing less. I hope this can help others.įirst of all, very well done Luis on keeping your nerve and getting a fix even though you have had to fork out €4500 - but even that is €8500 less than MB wanted to screw out of you for a replacement! I sincerely hope your lawyer in Germany can get some results and at the moment at least anything that applies in Germany almost certainly still applies in UK as part of the EU as well. To prevent this from happening, they recommend changing the 2 batteries every 2 years (they cost a couple of hundred euros each). If those batteries had been replaced before they showed this, the main battery would not have been affected.
![bluetech av-1000 bluetech av-1000](https://pbs.twimg.com/media/EWWrsDlXYAYOreh.jpg)
This spikes are responsible for the degradation of the main hybrid battery and they happened because the 2 other batteries didn't have optimal charge values. When this 2 batteries are somehow "weak" there are no signs on the dashboard or any other signal that they need replacement but the overall hybrid circuit is affected causing electric spikes while charging the hybrid battery.
![bluetech av-1000 bluetech av-1000](https://refreshmiami.com/wp-content/uploads/2021/11/MTH-1106.jpg)
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As they explained all 3 batteries work together (start-stop, car battery and the hybrid battery) and in my case, the 2 (non-hybrid) batteries didn't had their full load capacity due to the car being stopped for months. This information should be relevant for current owners as MB seams to have no idea on their diesel hybrid technology.Īccording to the engineers, the degradation of the hybrid battery occurred due to inconsistent electric tension between the overall system that is composed of 3 batteries.
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Battery was successfully recovered, also the dealer that made the service to the battery explained how to avoid this in the future.