The L322 Coolant warning does two things....measures the coolant level and also the mixture....if the mixture is wrong, it will throw a coolant level warning even if the level is correct.
That being said, it could be a duff sensor mounted under the expansion tank!
That being said, it could be a duff sensor mounted under the expansion tank!
Datatek
Well-Known Member
Yes
As Datatek says above - the Float the stick is mounted to is a hydrometer (or whatever they are called) and this sits at a certain level depending on SG of the mixture....
There was a discussion about this and how it works a few months back...a forum search should reveal all!
There was a discussion about this and how it works a few months back...a forum search should reveal all!
Apologies for adding to this thread but thought it better than doing a new one.
As @Datatek & @Saint.V8 explained the float measures SG, I am guessing if it is a mixture problem the tank could be full but the float still low. Just asking cos my coolant level warning came on on Friday so I topped it up and then today the warning came on again. The tank is full and the float is riding high so I think I must have a faulty sensor. Also warning has gone since I removed and replaced the filler cap.
