Once again for the current occasion: Man fills petrol in his diesel (I know more about woman, but here it was the man) Car is towed to the contract workshop and examined there: KV: Total damage of the engine > new engine 6200 Euro (withdrawn since approx. 2000 discount) fortunately a second workshop was commissioned with an examination: Result: cleaning of the fuel system and renewing the filters about 400,- € other case: engine becomes loud, contract workshop after examination: Z Over 200 000 km better scrap the vehicle. Second workshop: Searches for chips, but does not take place; Threads newly used in cylinder head: 390,- € certainly not individual cases, but with technically helpless customers probably often the fate… I can derive from my experience as an electronics technician: If the workshop can only exchange complete units, instead of running detailed troubleshooting, (which is a good fac In my industry for comparison: a defective condensator in a circuit board (power supply, control, module) costs 50 euros at an expensive exchange, the complete circuit board (power supply, control, module) between 150,- to 3000,- € . If the “technician” can not search for the defective condensator, he has to exchange the circuit board (power supply, control, module) … So as a summary one has to say: who knows a workshop with good experts, should be happy appreciate, because this is a privilege that not all customers / people have.