Cooling System - 'Check Coolant Level Message' Displayed
No: 26/02/05/NAS
FGN LM303
Ref:
Issue: 1
Date: 17 February 2005
False Coolant Level Warning
AFFECTED VEHICLE RANGE:
New Range Rover (LM) All
SITUATION:
"CHECK COOLANT LEVEL" WARNING MESSAGE DISPLAYED
The vehicle may display the "Check Coolant Level" warning message even when the coolant level is visually within the correct range in the
expansion tank. Incorrect specific gravity of the coolant mix can result in the "check coolant level" warning message being displayed.
RESOLUTION:
VERIFY COOLANT SPECIFIC GRAVITY
If the customer complains of the above symptom, the specific gravity of the coolant MUST be checked prior to any other investigations or repair,
such as the replacement of the expansion tank assembly or low coolant level sensor. The low coolant sensing system will not work correctly if the
specific gravity of the coolant mixture is incorrect.
The specific gravity of a 50% anti-freeze solution at 20锟斤拷C (68锟斤拷F) is 1.075 (using a coolant specific gravity tester) and protects against freezing down
to -36锟斤拷C (-33锟斤拷 F).
PARTS INFORMATION:
NOTE:
A 50% mix of water and coolant is required for a refill. Topping up with either blue coolant is permitted for recent vehicles with factory fill
BASF G48 coolant (blue). The 50% mix is required to obtain the correct specific gravity.
DDW WARRANTY CLAIMS:
CAUTION:
Mixing of the BASF G48 (blue) with Texaco XLC (orange) coolant can result in premature erosion of the cylinder heads or other cooling system
deterioration. Unapproved blending of coolants is to be avoided.
151
Warranty coverage could be affected by the use of unapproved coolants or the incorrect blending of fluids.
Information Only
Normal warranty policy and procedures apply.
