2010 Audi A5 Crank No Start. Hi, I have a 2010 Audi A5 Quattro with a 2.0t TFSI engine that cranks but does not start. It seems to be a very peculiar situation and am out of ideas so I'm hoping someone will be able to help. Basically a few months ago I bought the car with a seized engine and swapped it with a junkyard engine. On a side note, a good friend who owned an 05 A4 2.0T Q had the same issue, and the car would not start at all. He had it towed to the dealer Knopf in Bethlehem Pennsylvania, and they apparently replaced his coil packs, and reflashed the ecu. Two days later, he parked the car, went into a restaurant and came outside to find his car on fire. Comfort Control Module. 1. A4 (B7 Platform) Discussion - Cranks but no start troubleshooting - Hi I recently have had a few weird starts in the past few mornings then today my b7 a4 decided not to start it keeps cranking but never catches. It recently has had a new battery and spark plugs done few months ago, so I should start with fuel to make Mbakar. AUTO START/STOP MALFUNCTION ON 2017. Q7. Some of you are probably jealous that I have this issue as it is a convenient issue, but knowing that there might be something wrong with the car just doesn't sink right. So as the title sums up in think my auto start/stop is not working properly. First connect red cable to the positive terminal of your A4’s dead battery, then to the positive terminal of donor battery. Next connect black cable to the negative terminal of donor battery, then to the bare metal in the engine bay of your A4. Start the donor vehicle and then your A4. Remove the cables in reverse order. If the ECM or it’s relay fail, the entire engine management system will be left without power and will not function as a result. A bad relay may cause the vehicle to crank, but not start, or sometimes not even crank at all. 3. Battery drain or dead battery. A failed ECM power relay can also cause a battery drain or dead battery. If the relay Q7 MK 1 Discussion - 2013 Q7 crank but no start - I recently purchased a used 2013 q7 for my wife. Tonight while I was at worked she called and said it would not start. It would crank over but not start. After 5 attempts it started and is running fine with no drive ability issues. I am new to the European car world. Jan 30, 2017. #2. I wouldn't spend any more money on parts until it has been properly plugged into Audi (VAG group) diagnostic software so that any engine management fault can be pinpointed. The fact that two items have been replaced in the past (without any long term improvement) suggests that this has not yet been done and that your mechanic after i finished doing a major job on this audi , all of a sudden there was no crank no start problem, i looked for relays in my car and found that the ones If your car is hard to start when warm, you can trace the issue to one or more potential faulty components. For example: Clogged air filter. Corroded or loose battery terminal or cable. Corroded or loose engine ground connection. Vapor lock in the fuel system. Faulty fuel system. Engine control system problems. T19hU.