I'm having problems getting my 85 euro 500sel to turn over. I have replaced the fuel pump filter distributor cap and rotor. I just had the head gasket water pump and radtior done. The only thing left is my starter. When I start my car it goes veve veve vmmm and then dies some times when it starts it puts out a black puff of smoke too. Any ideas as to why I would have these problems. By the way I had injectors done around 8 months ago.