After installing a new interior, it is possible to discover water damage in electronics or wire harnesses. Additionally, there may be an unpleasant lingering fire smell on warm days.
Moreover, if the interior is saturated, there is a potential danger of mould and corrosion occurring under the carpet.
I believed that fire damage referred to the previous Cat B classification, which thus rendered the vehicle ineligible for road use.
If you are interested in disposing of it, you may consider repurchasing it with the intention of dismantling it, or exploring the possibility of selling it to a Mercedes breaker. However, it is not advisable to invest a significant amount of money in purchasing a new interior.
Apologies for the unfortunate circumstances.