The reports mention recurring electrical door faults above 20,000 km: the central locking does not open or close every door, the window regulator does not respond first time, or the rear windows still move the front ones after the touch switch has been toggled. The symptom is often intermittent: it typically appears in the cold and on the first start.

This is rarely a loss of value. But an intermittent fault will most likely not appear on the test drive. That is why you have to ask about it specifically and look for it in the service book, rather than waiting for it to show itself.