Thread: Low coolant level message?

Get another dealer.

It is well known issue float in the tank becomes porous and the float sinks. Needs new tank under warranty.
TSB exists
This could be the RRS one but exactly the same issue

TSB# LS303-006

SECTION: 303-03
"Low Coolant Level" Message or Warning Lamp Illuminated
AFFECTED VEHICLE RANGE:
Range Rover Sport (LS) VIN: 6A900129 to 6A929342
CONDITION SUMMARY:
"LOW COOLANT LEVEL" MESSAGE OR WARNING LAMP ILLUMINATED
Situation: A customer may report that the "Low Coolant" amber warning lamp is illuminated or a "Low Coolant Level" message is displayed in the Message Center when the engine coolant expansion tank volume is within recommended levels.
The coolant level float in the expansion tank can absorb coolant causing the float to sink. The warning lamp and message will display when the float sinks below the low level sensor trigger point.
Action: Should a customer express a concern related to the above condition, within the specified VIN range, refer to the Repair Procedure detailed in this bulletin.
PARTS:
NOTE: The current expansion tank part PCF500015 may be used only if the sticker on the side of the part has a date of 31-10-05 (DD-MM-YY) or later. A newer part PCF500090 may be used when available.
PCF500015..............Coolant expansion tank (dated 31-10-05 or later) Qty 1
PCF500090..............Coolant expansion tank Qty 1

Beaut thanks for that Carver! Regrettably my dealer has an oligopoly - I'd love to get another dealer but the closets is about 300k's away. cheers

It's a very common complaint. If the sensor float has sunk (more than likely), it needs a new expansion tank.
If it's a sensor failure, then the sensor itself can be replaced now.