X2. If the engine has not been turned over since you added the wrong fluid, it'll still be contained in that reservoir and not yet circulated throughout the system. If you've started the engine (even for a short time), you'll have circulated that fluid through the system and the flush/removal procedure will be more involved. Don't risk your rack, pump or hoses if you can help it. If it has not been started, keep it that way and get the car towed the one mile to the shop. Make sure you notify the shop personnel so they know not to start it after the truck drops it off. The Passat requires a specific type of fluid in the power steering system. Make sure the shop knows this and doesn't use the wrong stuff. If you've already started the car, you've circulated the fluid and may as well drive the car the one mile to the shop.