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As a suitable replacement for prevalent but environmentally hazardous fibrous materials used in exhaust system silencers, innovative micro-perforated (MP) elements have been progressively implemented for internal combustion engine noise control during the past decades. Although MP elements are already massproduced for IC engine noise control, surprisingly few scientific publications can still be found on the endurance of these MP elements. Recently the reliability of MP element was studied by the authors for a small four-stroke petrol engine silencer application. The results clearly demonstrated that the performance of the micro-perforated elements is influenced by the contamination of residual combustion products of the exhaust gas. In this paper the endurance of MP element tested in small industrial diesel engine application of a novel unmanned ground vehicle (UGV) has been treated.