Buying used car after 5 months of damage will cost merchants?

Good evening. I bought a used Ford Kuga from a dealership on 24.05.2016. This was a direct purchase contract between me and the dealer, so no resale on behalf of a third person. – we did not have a used car warranty, since the purchase contract stated one year warranty for material defects (purchase contract template of 08/2015) Now the following: On 07.11.2016 came the message engine malfunction in the vehicle, then I called the dealership u With the statement that this would be normal for the car. On 09.11.2016 I wanted to drive early on to work, battery dead. No light, no unlocking anything was possible at the car. Then I called the ADAC, he towed my car to the workshop, on the day a new battery was installed within 2 hours although they were told they would have to order first. Well, nothing thought about it, and that’s all. the 160€ paid. Since a battery is now a wear part. Well the highlight, this week on 15.11.2016 I wanted to drive to friends in the evening, the steering went already a bit difficult, the light started to flicker during the ride and car went out. I informed the car dealership, telephone, these just hung up. Then I called the ADAC this towed me back to the car dealership. There the car stood until Thursday because we had holiday on Wednesday. On Donnersta g drove early at times to the car dealership, to which all this explains everything and yesterday came the call that the alternator is over, the whole should cost me 460€. Today the call came that car can be picked up tomorrow. Now I wonder what I have with the one year warranty? And that one year is also divided again, that is to say that until half a year of purchase the dealers should stand for any shortage and have to fix this for free? or do they want to drag me over the table? Half a year will run out on 24.11.2016.