#Low coolant level warning light manuals#
#Low coolant level warning light software#

I am attaching following picture that may provide more hints, because there is fluid exhausted with force from what I think is radiator hose: The coolant is pouring on the street (in this case there could be something dipping below the car)Ĭoolant gets burned together with fuel and goes out through exhaust pipe (not sure what hints are for this case).Īre the any possible root causes that could explain why coolant disappears? I guess there are three possibilities:Ĭoolant is leaking in oil compartment (in this case the oil may become milky) I suppose it is also important to find out why coolant has disappeared. If it is better not to drive around in current condition, can I simply pour in a liter of distilled water to get the car around for a day or so? I guess this would dillute the water:coolant ratio from 50:50 to something like 60:40. If coolant reservoir is not completely empty and low coolant light is turning on only intermittently, is it ok to drive around for a day or so for short trips until this gets properly fixed? Does this kind of job imply also coolant change? if so, then I guess there is possibility that it is not the blue BMW coolant in her car anymore and in this case the coolant should be flushed if its type can't be determined anymore? She got engine gasket replaced outside BMW a year ago. I would be inclined to buy and pour in new coolant, however, after googling around I have few doubts now: Nevertheless, the float stick was still floating and there was still some fluid left inside the reservoir. I checked the coolant reservoir and float stick was slightly below the 'low line'. This will cause the issue not be present anymore & not reproducible with warm engine coolant.In the last few days the 'low coolant' light has been intermittently turning on on my friend's BMW X3 (2007 ~70K miles). As the coolant is warmed, the level increase, the thermostat opens & the surge tank flow rate is substantial decreased. When started in the morning, a foaming condition coupled with high flow through the reservoir may cause the low coolant light to display. Note: this situation may be exaggerated by driving the vehicle over 4000RPM for an extended period, then parking the vehicle & setting overnight.

#Low coolant level warning light software#

With the vehicle cold, raise coolant level ½” above the cold fill line.īreakpoints for the introduction of the new software are: Until the new calibration is available, a service procedure has been developed. A new sensor calibration is being developed, but is not available at this time. The coolant level sensor calibration may be too sensitive to the coolant level. #PIC4886: Low Coolant Message Displayed (May 30, 2008) They handed me this bulletin & sent me on my way. I took the Astra in last week & left it overnight.

Nor can you get any readouts from the BIC. What is really annoying is the fact when you have the display of:' COOLANT LEVEL', you cannot change band on the radio,switch stations or switch over to the CD player. I have checked the the level,and it is even a 3/8' above the ' COLD/KALT' level. The ' COOLANT LEVEL' display comes on regularly. The problem has been getting increasingly worse. This will be the second trip there to rectify the situation.

I am taking the wife's car in tomorrow for an overnite visit to the dealer. It's funny how when the car is under warranty the dealer is reluctant to change any parts, but when it is out of warranty, they shotgun the hell outa them. If I unplug it and get no message, that may be something for you guys to try when you get the message. I'll try unplugging the connector and see what happens this week.

#Low coolant level warning light manuals#

I could look it up in some of my other GM service manuals but there is no guarantee its the same on this car. I don't know if the sensor is a float or what, or if it is variable or just on or off. I could not because of baffles inside the tank, to prevent sloshing and perhaps setting of bogus low coolant messages.

Perhaps because the tank is under pressure and they don't want you to open when hot, to top off? I removed the cap to see if I could see what the sensor looked like inside the tank. There appears to be not 'hot' mark that I could see. My tank was filled above the 'cold' level from the factory, its up to the seam in the tank. It has two wires brown and brown with a green stripe. There is a low coolant sensor entering the reservoir from the bottom, towards the front. When I was checking the oil today, I remembered this thread and was poking around the coolant reservoir. Iv'e just turned over 7000 miles and have not had this problem.