Dear Schraubengemeinde, my Volvo 850, 2,0l, 126 hp, which runs up to approx. 250 tkm, has for a long time had the following problem: – cold start in all weather conditions without problems – no problems after starting, engine runs round – if engine is switched off after approx. 3 to 15 km long drive, the engine does not ignite with a new start attempt (starter turns, engine may cause some mis-ignitions, but does not start) – after a longer waiting period (larger 25 minutes) engine starts without problems – several workshops are at ease, since problem does not occur there – were replaced there: air volume meters, spark plugs, distribution cap and runner, thermostat valve and the function of the petrol pump – if the engine has been brought back to running after this first stop, it runs without problems for hours! Since I can not make a rhyme on this behavior, I ask for your help! Thank you very much in advance!