@Concept24
I just watched the Car Wizard video that you mentioned. Wow, a lot to unpack there. First, I need to disclose that I've seen a lot of this guy's videos. I take real issue with the guy on some key things in a lot of his videos. He seems to be an almost entirely self-taught mechanic with no significant structured training background for the work that he's doing, either in a manufacturer training program or in any general purpose academic automotive or engineering discipline. I get that he's ex-military and was trained to work on tanks in the military. That's not in ANY way related to the knowledge or context that you need in order to hold yourself out as a "master mechanic" (or even to work competently) on commercially sold automobiles. There's a reason why heavy diesel mechanics focus on that and don't try to fix Subaru Outbacks. There's a reason why Honda mechanics don't just assume that they know everything they need to know to fix a piece of heavy diesel equipment like a Cat D9 bulldozer, even if they can look at the problem and understand what's broken.
Look, I'm not saying he's wrong to be working in the trade, far from it... but he's very obviously leaning on his innate intelligence and ability to make inferences about what "seems right" contextually, rather than operating on any directly acquired knowledge from primary sources. And that's fine when you're just trying to get things done for a few customers and not broadcasting to the world. But this guy is running a YouTube channel and holding himself out as a serious expert (literally the "Car Wizard") and he's just not that.
In the case of the specific video that you mention... this guy's customer is junking a nice Audi luxury crossover in very good condition because it has an engine problem. Literally sending the whole car to the junkyard. I just spent 5 minutes on Car-Part and have a list of sub-40k mile used 2.0T engines out of Q5s for between $3500 and $4500 that can be sourced regionally or delivered nationwide on an LTL pallet for a couple hundred bucks in freight. The amount of time a competent mechanic would take to swap an Audi engine (whole engine) is literally like 4 or 5 hours of labor at most. The whole thing yanks out pretty quickly if you aren't screwing around taking half of it apart for no reason, like he's describing in the "work needed" part of his spiel to the customer. I mean jesus, he literally walked the audience through how he could give her $2500 for the car, fix the whole thing back to running order, then have his buddy sell the car post-repair and have a profit to make everyone whole with... I mean why wouldn't that be the customer's best option under her own ownership, if she didn't want the car? Restore the asset to saleable condition and sell it if she doesn't want it, don't gift it to a junkyard/recycler for $500. That's absurd, the yard is going to make somewhere around $10k in profit over time on the stripped parts.
This stuff just breaks my head. It's certainly not an example of Audis being terrible, it's an example of bad mechanic advice and bad math, used together to construct an absurd scenario for the benefit of YouTube comment section angst. It's just slow-roll clickbait. Stop encouraging this guy.