Audi q5 2009 injector and Alternator and auxiliary belt work gone wrong Hi all so I had a injector go on my audi q5 2009 and had a mechanic to put a new injector in it and a Alternator and auxiliary belt so after the work be done I take it for a drive did about 2miles than Start it to make Allowed tapping noise so get hold of mechanic and he's said get it home than he will come and have a look at it so start my journey again but before I get back home properly do 5/6 miles a Warning light saying oil too hot over turn engine off before I Even had the chance too Pullover a big bang and engine cuts out so gets out car oil everywhere he comes and has a look the pistol has cracked and put a hole in the block Either on chamber 3 or 4 now what I need to no is how dose a piston just do that and if the mechanic do something to it or is just bad luck
If the belt was improperly tensioned, the water pump might not have been turning fast enough to prevent overheating.
