Sam, thank you so much for your advice, appreciated.
I will check the alternator definitely.
I tested the car (I love manuals) I felt the first gear, to start the car from 0 km, required the revs to be quite high to be able to take off. but when the car is going, all the other gears are fine.
I heared a noise in the engine, the owner is telling me it is the water pump... I rquested him to change it for me in order to check if the noise is gone after this replacement.
I was wondering how long will the original cathalitic exhaust will last on this model, any idea?
Alex