![]() Mine has been loose for about 12 years now. Air pockets will cause your entire system to jam up, and you won’t get any coolant flow. A few hours later I drove it and it didnt come back on -went to the Bap Geon to get VW coolant and let the guy look at it. The check coolant light came on when I started the car (didnt go past the center on temp gauge. ![]() After a coolant flush, you need to make sure that you get all of the air pockets out of the cooling system. Ive had my 2010 Touareg for about a year - love it. The easiest way to check is to find the coolant reservoir in the engine bay. You can leave that cover off the hood traps it when closed. Any kind of coolant leak can lead to your engine overheating in short order. ![]() Open that rad cap up with engine cold over a few days and keep and eye on that fluid level it will move around alot. Dont bother with the overflow tank its level is meaningless. Remove the black plastic cover over the top of the rad you will get to the rad cap. Just dumping the rad only a few times over a few months will do. ![]() This is why I never recommend doing a full coolant change. It will show you how to manually cycle that pump by jumping out the CHRS pump relay. Use the search forums link up top and searchĪnd read all the posts. If your vehicle is older, the coolant goes directly into the radiator and is stored there. You could be over heating the engine and never even know it. Engine coolant, commonly referred to as antifreeze, is stored within the coolant reservoir in your vehicle. Be careful with this situation because there is no temp gauge in our cars and you will have alot of air stuck in the top of the cylinder head as that's the highest point of the engine and it will not do a good job of cooling. You must cycle the thermos pump to circulate the air trapped in it. That makes it very difficult to dump the rad & engine coolant and then try to get the air out. I've definitely got some air gurgling in my heater core too.Ĭan I get this out just by parking on a hill or do I need to start messing with hoses?Ĭan I get this out just by parking on a hill or do I need to start messing with hoses?You should have had the heater on when you burped it.The shop probably didn't even know there's a thermos in the system. After that, problem solved topped off the radiator, no more surging, cool running, all good." This will allow the engine to cool down and avoid further damage. Only then did a really big burp let out and the level of the radiator dropped a lot. If the engine coolant temperature light comes on while you are driving, pull over to a safe location and turn off the engine. Finally I got frustrated with the splashing coolant mess and shut it off. I tried squeezing the hoses to help burp the air out but it kept surging. Common areas for leaks include radiator hoses, the water pump, heater core, and the radiator itself. Coolant leak: A leak in the coolant system can cause the coolant level to drop rapidly, triggering the warning light. Once it began to surge the radiator gushed out coolant in surges. This could be caused by a leak in the cooling system or simply by normal evaporation over time. The first time this happened I had the radiator cap on, the second time it was off and I was watching it. With the truck on ramps and the engine running, once the thermostat actually opened, the engine started surging again and I noticed the level in the radiator pulsing with the surges. "Problem solved and answers found! After installing a new water pump, I paid really close attention when filling/bleeding the system.
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