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afternoon- my car was hunting when accelarating (renault laguna 16v), then it was dignosed as throttle body and then injection computer which were replaced after three months at the workshop. i collected the car but after 15km it overheated, checking bonnet and water gauge there was no water and had to put about 7 liters of water in it. The radiator fan was not working, renault said i must bring it back. Now they say the cranky pulley and campbelt are faulty. can the overheat cause the cranky pulley and campbelt issue, or is it the throttle body and injection computer not assembled properly..?

i've asked them this questions and they have not answered me yet:

Why was the car without any water ??
Is it possible that during the replacement of the throttle body and the injection computer after connected back the water hoses the water and the coolant was not replaced on the car. ??
Its also obvious that the was not road test conducted on the car before delivery as this issue will have been picked up?
Because of the overheating as the result of no water in the car the radiator fan was also not working, so a lot of damages could have been as a result of that??
How was the parts assembled? could that have been the cause of the problem.?

As per your other post, what year is this car please?