Could you please tell me why my Volkswagen Touareg 2006 after 80 mile of running

Your question appears incomplete, so I would say -- testing is required to find out what is happening. Hands on testing can check fuel system components to see if you have adequate fuel delivery to the engine, as well as ensure there is proper exhaust flow -- you could have an internal catalytic converter restriction that could be affecting operation. Simply cannot tell without hands on testing with diagnostic equipment that is capable of reading engine processor data -- not just a "code pulling scanner".

Manual transmission???