Hey you members, a question, what would you do in the following case ? So you have been in possession of an Audi A6, type 4B, Quattro, 2.8 L, 193 PS, 6 Zyl. – 30 V, Bj. 2000 Now, as you know, an e.g. 60 000 KM inspection is not cheap, especially since the car has Longlife 2. Well, Longlife 2 – 0W30 oil, the litre can already cost over 20,- Euronen and since the car with oil filter already needs 6 liters, that would be 120,- Euronen (240,- Alte Deutschmark) only for ÖL. The cost of spark plugs, oil filters (longlife), air filters and even the working time. Well, you do your own inspection, assuming that you had a commercial car workshop in the past and that you still have one or the other tool. So now to the case (true event) yourself. So you start, stupid as you are, to pick up the horse from behind, in which you first carry out the oil and oil filter change. Now you courageously reach for the Zü ndkerzenschlüssel, cylinder 6. 5. 4. 3. 2. Spark plugs out ….ok. But with the 1st cylinder you can see now……, the candle does not move a millimeter. Man(s) is not born stupid: And the following is tried to take the cutting edge. a: Let the engine (right) cool off ….Try to turn off…and…nix. b: Warm up the engine and then cool down the spark plug with a little bit of nitrogen ….Try to turn off…and…also nix. c: Careful turning up and turning ….again nix. All The VAG partner, who had carried out the last inspection, must have shot the candles properly, or turned dirt in and then, another attempt with a little more force … and … PENG…..Won..smile……turned out and found out………….you had lost. The spark plug thread was torn off, so you can now turn out 50 % of the thread with the ceramic inside guide. Even a turn in again is possible, so that the car could easily risk But that’s not a condition, because a new candle must come in sooner or later. Well, 50 % of the spark plug thread is stuck absolutely firmly in the spark plug thread of the cylinder head and that is that half of the above thread is visible and usable. Now good advice is expensive. Lt. VAG has to lower the cylinder head…. Cost factor without small parts approx.1000,- Euro. Sch…e my (your) expensive oil change, ………was now everything for the cat? And according to various engine repairs etzungsfirmen, only head shakes and shoulder shrugs, no thanks, or if only with head disassembly. Do you have to straighten yourself somehow, possibly without the head having to down ? And that still without having an endoscope …because of the possible metal chips that could fall in….. Add to that, that this stupid thread sits about 25 cm sunk under the valve cover …. Watt make me nu, Watt do…sprache Zeus…???? ***Solution follows after various answers *** Gruss X_One ……. Participation………….. could happen to everyone.