I’m an Audi owner. My local dealership’s service department is designed to extract maximum cash, not fix problems.
I “have a guy”, in that I have a local independent shop that has been servicing my vehicles for almost 30 years. In that time, they’ve demonstrated that they are willing to “act against interest” in dealing with their customers (recommending against replacement when it is not needed, letting me know when something is covered by warranty so I should take it to the dealer, etc.).
Last year, my A/C went out (just blowing warm air). Took it to my guy, who noted that the refrigerant was out, did a leak check and couldn’t find any leaks, refilled the A/C (~$250, cost of refrigerant was about $100/lb, which will be important later). A few weeks later it was blowing warm air again, so I took it back and they did a more thorough leak check, even keeping the car overnight so they could check with the engine cold. Couldn’t find the leak but they tightened whatever they could, refilled the refrigerant and sent me on my way (no charge). Sure enough, a few weeks later, it’s blowing warm. I take the car in, and they ask if they can have it for a couple of days. They have an A/C guy they use, but he’s only available certain days. I leave the car, and they call me few days later. Their guy has done everything he can and believes that the problem is the evaporator.
The problem is that the evaporator is deep inside the dash of the car, so replacing it requires taking the entire dash out and then putting it back in, which then requires full recalibration of the dash electronics. My guy says this would probably be around $1200-1500, but they can’t do this because they stand behind all their repairs and they can’t guarantee the electronics recalibration, which they have no expertise in. (a less scrupulous mechanic could have just done the replacement and hoped the electronics worked out). Their advice is to take it to the dealer. Further, they advise me that I shouldn’t let the dealer know the full gory details, just that I took it to an independent mechanic, that they advised me that it was the evaporator, and they couldn’t do the job.
So, I take the car to the dealer, let them know what I’ve been told. They take it in for “full twenty-point inspection” (which I had done at my guys shop a few months earlier). Cost $250 plus cost of refilling the refrigerant (cost: ~$450/lb) and they can’t find anything wrong, so they send me on my way (no they did not check the evaporator, because checking something that deep in the dash is a lot of work). A few weeks later, it’s blowing warm again, so I take it back in. They keep it for a day and let me know that they’ve found a bad valve that is the source of the leak and replacement will be $1500, but they are going to discount it to $1200 (googling I found that one of the things a bad evaporator can cause is failure of this valve). What could I do? I said fix it and picked up the “repaired” car.
A few weeks later…you can’t be surprised, can you? It’s blowing warm again, I take the car back to the dealer and they take it for a day and call me an let me know that they’ve identified the evaporator as the problem! The evaporator is subject to an extended warranty due to known problems, so even though my car is long out of the standard warranty period, it will be replaced under warranty (is the light dawning folks?). A few days later, I get my car back and there have been no problems with the A/C since then.
So, let me count the ways. They jobbed me for a full inspection the car didn’t need even though I had brought it in for a specific problem, charged me a 4X markup on refrigerant (over standard markup- the refrigerant is ~$30/lb retail, standard shop markup is to $100-120), charged me for a valve replacement that may not have been needed (the valve in question is right out in the open in the engine compartment, so the fact that no leak was found prior is suspicious), and generally extended the amount of time I was without the car.
But they always had very nice videos they sent me (which is how I could see that the “bad valve” was easily leak tested). And now they send me emails and texts asking what they need to do to win my service business!