Replacing the Accessory Belt and Flushing the Coolant
A while back, the car started to make a noise. You know the noise; it has happened to all of us at some point. It sounds like money leaving your wallet. Well, ok not really, but as we all know old cars need more love then newer ones. Our Audi is no exception. In reality there was a knock coming from the front of the engine. Only there on cold starts, and would subside after a few minutes. However, noises should never be ignored. As it turns out, it’s a good thing we chose to look into this knock. A timing belt cover was rubbing a pulley, causing a tick. This could have being a lot worse, had we not pulled the car apart to take a look. For now the belt seems fine, and all is well, the tick is gone and we used this opportunity to upgrade some other parts, mainly the serpentine belt, as the original was worn. We also took this chance to flush the coolant, as the old stuff was spent. Getting to the belts was the most work, as we had to put the car into the service position, basically disconnecting most of the front carrier and lock. We had to disconnect some plugs; headlights etc. as well as unbolt the bumper shocks. We also had to disconnect and drain the coolant. After most of this was completed we were able to move the front end out of the way, and get at the viscous fan clutch. We removed the blades to get at the belt, and timing belt covers. (We should note, you don’t have to most of this if you just need to get to the serp belt, but we wanted to be sure that everything was working) With the T-Belt cover fixed, we turned our attention to the accessory belt and reassembly. Surprisingly, the accessory belt is very easy to put on, and our new belt was on in no time. Last but not least, we had to flush and refill the coolant. This was not as easy as we thought it would be, mainly because we don’t read…. After we figured out the basic process, we added 50/50 mix of OEM G12. Please use OEM G12 coolant in your cars, its only 25 dollars, and formulated solely for your engine. (Yes this is one of the those things, just use OEM) The process is simple enough, drain with the red drain screw at the bottom of the radiator, flush with water. (You can do this by running the car with heat at full blast for segments at a time) Drain the water, and fill with coolant, be sure to check levels regularly. We had to top off twice now, so that last step is a biggie. If you don’t do this properly, air bubbles can occur and cause your engine to overheat. The fix is simple, there is a bleeder screw in the battery bay, and you can also flush the system just by running the car again. Oh, and don’t forget that coolant is poison, so get rid of it properly. (Drinking it is not an approved method) So there you have it, tick solved, coolant flushed and parts upgraded. All in all, a good day, happy wrenching until next time. Oh and we snapped a few pictures for your viewing pleasure.