Hi everybody,
the Tipo I drive, 1.7 diesel has 172.000 km, all filters and engine oil are being changed on regular basis; injectors were replaced at 150.000 km. Now the car lost its power at acceleration, when being just minimaly loaded or driving uphill; the top speed reduced from 160 km/h to 140 km/h. Satisfying power can be achieved only on high speed of the main engine shaft rotation (e.g. driving in 4th insted of 5th gear) or/and full gas. The power lost did not appear over night, but it is obvious and it is more perceptible in very hot weather (more than 25 deg. Cel.) There is no engine oil consumption or any black smoke from exhaust. The car simply does not have the power anymore from unknow reason. The fuel consumption did not increase heavily. After fuel filter being replaced (advice from a mechanic) there is no a positive change.
Thanks for help, explanations, solutions !
Best Regards, Klemen