Poor running 159 2.2 with stretched timing belt which has jumped teeth

We have previously had in a 159 2.2 with the engine management light on diagnosing the fault as a stretched timing chain.Unfortnately the customer has carried on driving the car until it started to run badly and lost power.The stretched chain is now so loose it has jumped teeth and the engine is not timed up correctly.Luckily no internal damage has been done but still a costly repair.Everyone thought chains would last and would never need changing but we are seeing more and more cars that need timing chains.

159 Timing chain so loose it saggs

Correctly tensioned chain