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14

"Is it safe to continue driving with low coolant as long as I continue to watch the temperature gauge? " No, the temp sensor reads coolant temperature, if the coolant gets low enough to be below the temp sensor, now the sensor is reading metal temperature of the area it is screwed into (usually cylinder head), by the time it reads too hot on the gauge the ...


7

If you do not have any leaks, then your coolant is most likely getting burned and/or going into your oil. My guess is going to be a problem with your head gasket or some crack or warping in the head. I believe coolant in oil used to turn oil more brown and make it more foamy or milky. These days, the detergents and dispersants in modern oil can reduce ...


5

First, you do need to find out where the coolant is going. There is UV dye that can help with this, and if your car is smoking, that could be a sign that the coolant is leaking into the engine rather than on the ground. For the main question, "Is it safe", as long as you keep an eye on the temperature and it's not getting too high, you should be OK in the ...


4

If it has an engine oil cooler, that is most likely the problem, a faulty oil cooler, some are made into the radiator, others have heater hoses running to a remote oil cooler, and a few I have seen are where the oil filter screws on, the oil cooler has a leak into the coolant side. The reason no coolant is in the oil is because it is a high pressure leak, ...


4

Your sample may just be non-representative. All the ones I know (I'm mostly into Japanese performance cars) have oil temps. Even many non-performance cars have an indicator that goes out once the engine is up to temperature (such as my wife's Honda Jazz) I think cars like the M135i have some cost based design decisions in order to meet their price point - ...


4

Use a coolant flush kit You can add a 'T' to one of your radiator hoses that allow you attach a garden hose to your cooling system. Once you have added the 'T' to your system you can run your car and the garden hose simultaneously in order to fully circulate the fluid in your cooling system as well as flush out all of the contents of the system to ensure ...


3

Flush it out with a hose (ordinary garden hose will do fine), backwards - so that the water flows though in the opposite direction to which it would do in normal operation. Generally they flow from top to bottom, so you want to flush it from bottom to top - it's often easiest to take the rad out and turn it upside-down for this. Keep going until the water ...


3

Yes, run the engine After you do any work involved with draining the coolant you will either have an exact process to remove air from the cooling system or you will simply run the engine. If you don't the gasses (air) will expand at a greater rate than liquid when the engine get's hot. This pressure of expanding gasses can blow out hoses or weak ...


3

Its not good to run with low coolant, even worse to run with no coolant. Actually it can be quite disastrous (possibilities include blown head gaskets, seized pistons and a number of expensive repairs), but many times this is a result of a leaky radiator cap which is easy (and cheap) to replace. Someone already mentioned the dyes for detecting leaks, but ...


3

If you can't see any obvious signs of leaks, or steam coming from anywhere if you run the engine, a likely cause is a cracked cylinder head gasket, which is letting the coolant into the cylinders and out of the tail pipe as steam. That could soon cause a lot more damage than the hassle carrying a water container in the car to top up the radiator. Personal ...


2

Clear water is not a sign of requiring a flush. It might be a sign that you need some anti-freeze... Brownish water or any other color that is not the normal color of your coolant could potentially benefit from a flush. Plain water in our engine could potentially cause problems: Water will boil over and not cool the engine sufficiently. Danger of rust if ...


2

What stands out the most is that the coolant is brown. I have never heard of a coolant that is supposed to be brown. They are generally a yellowish green. It sounds like you need to replace the coolant, and then see where your gauge goes. For a specific car, without a specific temperature label, it's hard to know if that reading is too high or not. Perhaps ...


2

According to this website, the coolant capacity for the 2007 Chevrolet Spark is 4.2L (4.4 qts) for the 1.0L engine. If your vehicle differs from this, you can cross reference on that page to get your specific vehicle. You can use whatever type of coolant you desire (red, green, yellow, orange, etc.), but realize each has its own change interval. It will ...


1

I had the same problem with my car and finally it was the Thermostat who was the culprit, it was not working properly and due to that even when the engine was heating up it did't start the Cooling fan and then ended up with the lots of heat and pressure and due to that coolalnt fluid overflows. Now I got the Thermostat replaced and its first day and i ...



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