At the end of an exit, an atypical noise from the AMG-SL engine compartment was noticed. The preliminary investigation, even under decrease of the rib belt, revealed the strong suspicion of the failure of a “New Tandem Pump” recently changed by “Exclusive Automobile”. The external appearance of the pump caused doubts as to whether it was an original pump. As to the repaired tandem pumps, it should be noted that the pump manufacturers do not supply spare parts. .A repair without original-ET raises at least questions. Exclusiv Automobile does not answer multiple requests about the scope of the repairs and exchanged parts. This is surprising, because usually the type and scope of the repairs as well as the indication of the used new parts are advertising effective. It cannot be excluded that this is an individual case, however, should warn for caution.