Hello – into the scene ! Does anyone know advice ??? Fage / facts: When my 850er, 2.5 L is reached the operating temperature – and I turn off the engine, I sometimes have to wait 3-5 minutes – until it starts again … Starter turns quite normal. In my opinion then either the ignition spark or fuel is missing … (Symtom similar to the defective immobilizer) I have already renewed the petrol pump relay. Have always thought of the engine in the warm state (in stupid places or situations) – in order to then possibly not to hinder the subsequent traffic … But this phenomenon is independent of the outside temperatures … If it were the engine temp sensor, it would start worse, but it would start… The engine now has 382,000 KM (!) on it – and otherwise runs great ! WHAT CAN BE ??? I am grateful for every tip ! Thanks & Greeting Mr. Lollypop