Why have used cars become so expensive and which brand is worth buying?

The market seems to be completely depleted of good, affordable used cars. What do you do if you urgently need another car? Which brand or retailer can you still trust? I'm looking for a practical station wagon (not a high-roof station wagon) that can also transport garden bags, building materials, etc., and has room for…

Audi A3 8P (2008) – Instrument cluster keeps failing! Electric windows, turn signals, and air conditioning don't work… can anyone help?

The problem usually occurs when the car is at “temperature”. Then the instrument cluster starts acting up, going on and off… until it dies completely. The lights in the cluster work, though, and they also show when I turn on the high beams or the hazard lights. So I'm assuming the cluster isn't broken. Once…