pauldavis1234
10/30/2005 11:40:20 PM
Hello,
I have a 98 A4 Tdi with 90K on the clock. Recently, a flashing red light (water with thermostat in it) comes on when the engine is warmed up - after about 10mins. When I inspect the coolant reservoir - it is full and a orange color. The temp remains in the middle at 90.
History:
Red light came on, upon inspection - reservior was empty - filled up with 50/50 normal coolant & water.
About two months later - same thing happened - again filled up with coolant & water.
Now - the light comes on - but the coolant level is up to the top!!
Has anyone else come across this or something similar?? Please help!!
Thnx,
A Novice!
Jestnomen
10/31/2005 5:25:31 PM
Maybe a bad coolant level sensor at the bottom of the reservoir?
pauldavis1234
10/31/2005 10:36:45 PM
Thanks!!
Will give it a go! Do you happen to know if its hard to get to replace or expensive?????
flyboy
11/1/2005 1:33:05 AM
thats what I was thinking.
BaconBait
11/1/2005 7:26:54 PM
quote:
ORIGINAL: pauldavis1234
History:
Red light came on, upon inspection - reservior was empty - filled up with 50/50 normal coolant & water.
About two months later - same thing happened - again filled up with coolant & water.
Wait a sec... you filled the reservior and it was empty 2 months later?
You may have a more serious problem than a faulty sensor.
flyboy
11/1/2005 7:58:44 PM
Yeahbut, I've seen the senser go bad and the coolant leak though the sensor, not the o ring but the sensor.
pauldavis1234
11/1/2005 9:20:40 PM
Thanks Guys - great inputs!
Yes, correct reservoir was empty after approx 2 months.
I am getting a quote from a dealer on Thursday for a new sensor and replacement - and will keep you posted.
Interesting to know the coolant may also leak through the sensor - as this may be whats causing it to go bad!
Also, it only happens about 75% of the time I'm driving and only when the engine is warmed up after about 10mins
Thnx,
Paul
