Would seem that the previous owner was misled into believing it had a run-in service when it in fact hadn't... then the garage selling it now knocked him down £1k, are aware and yet still marketing it high!
https://www.pistonheads.com/gassing/top ... 78086&i=20
"I have just sold my Z4MC (14k miles ruby black) to a trader for a straight purchase at £28.5k , however on close inspection it transpired that the running in service stamp in the book was erroneous and the car never actually had it's running in service. some scrote in the past had just filled this in but there is no record within BMW UK or supplying dealer network as evidence to say it had that service. (note to self to run better checks if i buy one again!).
As a result of this the trader offered me £27.5k which I accepted.
The car is now for sale for £36k. A significant mark up but maybe not so much if you consider applicable tax on that potential profit and the fact that people need to make a living!
It is however being advertised as having a full service history which is obviously incorrect."