Resort + Desi + Riley + Window Cleaner + Witness - S5-E1
Factual error: MacGyver and Russ are bringing two large oxygen cylinders into a room. From the way they handle them to get them off the cart and onto the floor, you can tell they are empty. To make matters even funnier, MacGyver manages to break off the valves on both tanks at the same time with just one stomp of his foot. That is physically impossible. Continuing the farce, the tanks pretty leisurely rocket away, lifting all present slowly to the skylight. I have seen a video of just one small air tank break a valve. It shot across the room, through the wall, flew through the air, and embedded itself three feet in the ground over 40 feet away. Believe me, not at all how depicted here. (00:35:20 - 00:36:20)
Rails + Pitons + Pulley + Pipe + Salt - S5-E9
Factual error: Mac's "cutting torch" was supposed to weaken the lock, and the pressure difference would do the rest, since there was "no air in the room." However, the door swings outward. If there is no air in the room, the higher pressure outside the room would keep the door closed, working against him, rather than for him. Besides this, the arc from a 12v car battery is unlikely to considerably weaken a steel lock. (00:01:15)
Barn Find + Engine Oil + La Punzonatura + Lab Rats + Tachometer - S5-E13
Factual error: MacGyver is wearing what is supposed to be a US Navy uniform. But he has the shoulder epaulets of a Lieutenant Commander, and is wearing a Chief Petty Officer service cap. (00:00:30)
Rails + Pitons + Pulley + Pipe + Salt - S5-E9
Factual error: MacGyver is using an improvised cutting torch to weaken a lock on a door. When he thinks he has cut enough he drops the torch and immediately holds on to the lock to open it. If It has been subject to a cutting torch long enough to weaken it, he would not be able to grasp the lock with his bare hands without seriously burning them. (00:15:00)
Rails + Pitons + Pulley + Pipe + Salt - S5-E9
Factual error: Every time the Phoenix Foundation airplane is shown, it has absolutely no markings. Every aircraft has to be registered somewhere and display its registration prominently, and no aircraft can fly in a country's airspace without a registration number at the very least. (00:01:55)
Banh Bao + Sterno + Drill + Burner + Mason - S5-E4
Factual error: A tracker is found in the engine compartment of a government car. To disable it, it is stomped on. And sparks fly. Inert electronics do not emit sparks when crushed. It was powered by the car battery. (00:16:20)
Banh Bao + Sterno + Drill + Burner + Mason - S5-E4
Factual error: The whiz kid is attempting to remote control a car. He asks Mattie for her cell phone, and then opens it with his hands. That is impossible. It takes a lot of effort and tools to do so. (00:12:44)
Resort + Desi + Riley + Window Cleaner + Witness - S5-E1
Factual error: MacGyver and Russ are locked in a hotel room. They cannot use their comms. MacGyver says it is because the room is secure with reinforced walls to keep comms blocked. But there is a big glass window with only bars on it. If the room were indeed secure to comms there would be a screen to complete a Faraday Cage and prevent radio frequencies from passing through. (00:26:45)
Resort + Desi + Riley + Window Cleaner + Witness - S5-E1
Factual error: Riley and Desi pick the locks on a safe deposit box and extract a hard drive. They then are going down some stairs with Jane when Jane menaces them with a gun and asks for the hard drive. Riley tells Desi not to worry and shows her the actual disk in her hand. We're later shown she opened the casing with her bare hands and the disk dropped out - not at all possible. (00:29:30 - 00:32:00)