Today I got my car from the workshop, problem was that I had 900 rpm, the temperature indicator always only went up 1/4 and the exhaust was extremely roaring. Today then the complete ignition system was replaced, the thermostat, the temperature sensor, the suction bridge and now the speedometer 1100 rpm shows in the warm state! According to the meter this is between 850 and 900, what can this be broken now? Another problem is the roaring of the exhaust. I had the problem that he fanned gs with original cat and original end pot very quiet ran from the driving noise. Now the cat was clogged but we had to replace it, so new cat under it and then he started to tube. But noise came to 100% out of the end pot, so end pot renewed. The tube was back, so again to the workshop, Krummer is dense, Kat was replaced by an expensive, but tubes is still there, engine bearings are fine… I spin right through, where can the error now lie, if the whole Compression test: Cylinder 1 = 10 bar, Cylinder 2 = 11 bar Cylinder 3 = 11.4 bar, Cylinder 4 = 11 bar and Cyöinder 5 equal to 10 bar, sounds very balanced, should be ok according to the workshop and will not be the trigger for the problems of the engine. Spark plug picture of the old spark plugs was great, not too fat, not too lean, especially it does not burn oil. I am really overwhelmed, the car has just 180000 km down cO