Question about Volkswagen Polo
The bottle is for engine coolant. If you fill the bottle half way you should be OK. After driving the vehicle and it has cooled down, check the level. As long as there is fluid in the bottle and the temp. does not rise past mid range, your in the clear. If the level keeps going down after a few drives, check for coolant leaks and repair if any are found.
Posted on Jun 16, 2017
It's the expansion bottle . Make sure you have coolent in there read on the bottle how much to put in for your car ,ps on the white bottle you will have high and low marks on there min and max , fill the bottle between these marks with water tighten up the cap , the water in this bottle feeds the radiater when it needs it that's all good luck colin
Posted on Jun 16, 2017
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Posted on Jan 02, 2017
I have changed a few cylinder heads under warranty for this type of problem. The exhaust valve guides wear, this causes the exhaust valve to seat badly, giving low compression. if one cylinder compresion reading is more than about 50 psi below the others, then this warrants head removal. It is quite a job, due to the fact that the camshft id chain driven. If you are up for it then once the head is removed, poor liquid into the exhaust ports and see if it leaks out through any of the exhaust valves.
Posted on Jul 23, 2009
Did you check the oil cooling filter...??? , that's the only thing I'd imagine , otherwise you may have a very small leak on the engine gaskets...
Posted on Aug 28, 2009
Often "humming" noises like what you are experiencing are caused by a failing bearing somewhere. Some usual suspects are wheel bearings, alternator bearings, and sometimes even your waterpump, but usually it starts leaking too. To start narrowing down what it is, have someone ride with you to see if the noise is coming from left side or right side, or engine area, then see if it happens when the car is not moving, or just when the drive wheels are pulling the car? This way , hopefully you can pin point the culprit!
Posted on Mar 26, 2010
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