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2017 Windshield Washer Reservoir Capacity (176 fl oz)

8031 Views 18 Replies 14 Participants Last post by  wordptom
Windshield Washer Reservoir Capacity -> 176 fl oz (1Gal + 48 oz)

2017 Gen 2 Volt (Red)

To estimate the Windshield Washer Reservoir Capacity I first siphoned out as much fluid as I could (little over 1/2 gallon of the blue stuff, fortunately not the orange or yellow used for brutal upstate deep of winter).

Next, I ran the windshield washer and wipers to empty (nice clean windows). It took five or so cycles (~10 second cycle max where it turns off by itself) to go to minimum flow, and I quit there. There are about three full 10 second cycles remaining (~30 seconds total of spray) after the low windshield washer fluid low warning message in the driver information console (DIC).

Then, I poured in 1 Gallon of tap water (128 oz). After that, it took another 3 full 2 cup (16 oz measuring cup) portions (16 oz each) to reach the very top part where the first taper is (just below the cap).

So, (bells and whistles here), I estimate the capacity to be about 128 + 48 oz, or about 176 fluid ounces!

Some water may have flowed into the system (below the bottle), however I did not prime or run the system with water in it. So the estimate might (?) include a little system capacity beyond the bottle.
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Impressive. ...and you did this why?
THE PROBLEM is in GEN 1, not only we do not have water level monitor(except 2011/some 2012), but we cannot see the water reservoir at all...totally hidden from the operator!!!. Perhaps using a mirror ?. Hard to believe such poor engineering design something of such common use as windshield washer fluid.
One of my cars - might have been the 2010 Prius - had a flexible plastic tongue about 8 inches long with graduations molded along its length that was attached to the inside of the cap. Unsnap the cap and pull up until you saw the wetted section, thus understanding how much fluid was left. With my Volt I just fill to the neck every four to six months - or just before departing for a road trip. It doesn't have to be a problem, if you don't want it to be. 8^)
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