Audi Tt Roadster Water Pumps From Oct 1999 to Jun 2006 Available Here. Water pumps are the heart of your car’s coolant system. MicksGarage.com understands this, which is why we stock pumps for a wide range of cars. With their rugged construction, our selection of water pumps are all designed to smoothly and efficiently move your car’s coolant from the engine to the radiator and back again. When your water pump begins to fail, your engine faces the risk of overheating. With a new water pump from MicksGarage.com, you can protect your car and keep your engine safe. If you’re unsure which of our water pumps is right for your car, just ask one of our friendly customer service staff. They can point you in the right direction.