Quote:
Originally Posted by M5 Jed
Anyone know about why the car won't start if coolant is low? I replaced the thermostat on the B7, filled it with 50/50 mix until max level at the coolant expansion tank. The expansion tank for the intercoolers is still empty. I'm wondering if there's a sensor that is triggered to not let the car start of coolant is dangerously low or if intercooler expansion tank is empty.
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You probably leaked coolant earlier or are leaking coolant due to a blown line. If there are no leaks then the water evaporated and air pockets formed. The pockets are being shuttled out and low coolant is happening. I suggest using less water and more coolant ratio.