Help with the purchase of used cars up to 1000€/ purchase decision

Hello together, I am looking for a good used one, but do not know me well, is important to me above all, automatic and „max. 9L inner place. My budget is at approx. 1000€. I would be very grateful if someone can help me with this or give me tips (diseases of the respective manufacturer, especially with high km-stand, worth knowing etc.), on which I will not have after a short time, expensive and annoying workshop visits o.ä. I have now according to me Here’s an example of the vehicles: “Golf 1.6 TDI DPF BMT DSG with 105PS-1.Hand+SH cared for” EZ10/11 -150,000km- 11000€ VB “MB CLC 200 CDI DPF with 122PS -1.Hand+SH cared for” EZ06/09- 150.000km- for 10500€ VB “Golf 1.4 TSI DSG with 122PS -2.Hand without SH” EZ05/09- 119,000km for 8600€ VB “BMW 320d DPF with 177PS – 1.Hand+SH cared for” EZ10/08- 199,000km for 1000€ VB Thank you in advance, Joe