![]() The coolant level warning light usually means that your car is running low on engine coolant, and your engine may be potentially at risk of overheating. When the coolant temperature is too hot, the warning light will be displayed on the dashboard. The computer in your car is always monitoring the coolant temperature and fluid levels to make sure that the correct temperature is always maintained. Because of this, engines are required to have a variety of passages and a pump that constantly circulates coolant throughout the engine to maintain a safe temperature. Why is My Coolant Level Warning Light On?Ĭombustion engines in cars are driven with a series of controlled explosions that generate huge amounts of heat. Will My Car Fail its MOT if the Coolant Levels Warning Light is On?.How Much Does it Cost to Fix the Coolant Levels Warning Light?.Is it Dangerous to Drive with the Coolant Levels Warning Light On?.What are the Common Reasons the Coolant Level Warning Light Will Come On?.How Does the Coolant Level Warning Light Work?.What Does it Mean When the Coolant Level Warning Light is Flashing?.What is the Coolant Level Warning Light?.Why is My Coolant Level Warning Light On?.It's pretty damn expensive but then I knew what I could be in for with another twin turbo BMW (my third), and really would rather be safe than sorry. The Easy Care powertrain warranty won't cover it until it fails completely, it won't do anything for a marginal pump that I have chosen to replace. It's my wife's car and I really don't want to risk leaving her stranded anywhere. At least I now know that the temperature really IS getting high since I monitor it with the hidden menu displayĭo I just bite the bullet and replace the pump/t'stat and know that any cooling system issues would be fixed at that point? But if the pump is acting up, what happens if it completely fails? Then I'm really stranded and I sure don't want the risk of overheating damage. Shut the engine off, restart, and all is fine again. It runs fine for days between heatups and then out of the blue it just happens. He just said it doesn't seem to working right and he was fine with whatever I decided to do.ĭo I just have him flush/refill and then bring it home? Obviously if I do that, there is no guarantee that it won't do it again. He didn't tell me that he thought I should replace it. In this case, $1403 expensive to replace the pump & thermostat. The closest BMW dealer is 180 miles away, yet there are tons of new BMW's here. I live in a very rural area and there are only a few shops that will work on german cars. I get that, but this shop has a good reputation and is listed on. Now in the back of my mind, I'm always concerned about his incentive as the shop owner to try to sell me the pump. I explained the quick heat up this morning and he concurs that something happened with the pump for it to heat up suddenly as it did. No issue here but he did volunteer to me that the pump isn't failed, but that something isn't right with it. They called me to tell me they were doing the flush and wouldn't be completed by EOB today. I told them to keep it as long as they want so that we can get this entire issue resolved. My code reader hasn't been picking anything up but they have far more diagnostic tools than I do and may be able to find something. ![]() When I dropped it off at the shop, I told them to thoroughly check & diagnose any issues that may have occurred with the pump & T'stat. The way it happened so suddenly indicated (at least to me), that the water pump or T'stat may be questionable. Waiting only seconds, I started the engine again & watched the coolant temps plummet back down to mid 80's low 90's C. ![]() I pulled over at 114C and shut the engine off. When I got to within a mile of the shop, suddenly the temps started to shoot up. Temp varied with engine load as I would expect. I watched the coolant temps settle in the mid 80s' to mid 90's C on the drive. It's a 20 mile drive to the shop from home and I had the hidden menu temp display up. Took the X3 in to a shop this morning for a coolant flush & refill.
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