Land Rover Discovery: Engine Cooling - Ingenium i4 2.0l Diesel Cooling System Concentration Check
(G2154751) / General Procedures
GENERAL EQUIPMENT
Refractometer / Hydrometer
CHECK
CAUTIONS:
- The engine cooling system must be maintained with the correct
concentration and type of anti-freeze solution to prevent corrosion
and frost damage.
- Engine coolant will damage the paint finished surfaces. If spilt,
immediately remove the coolant and clean the area with water.
- Never remove the coolant expansion tank cap under any
circumstances while the engine is operating.
NOTES:
- This procedure contains illustrations showing certain components
removed to provide extra clarity.
- This procedure contains some variation in the illustrations
depending on the vehicle specification, but the essential
information is always correct.
Raise the cover plate.
General Equipment: Refractometer / Hydrometer
Clean the prism surface with a soft cloth.
Put 2 drops of pure distilled water on the prism surface
Lower the cover plate.
Observe the shadow line on the scale.
If required, use the adjustment screw to align the shadow line as
shown.
Raise the cover plate.
Clean the prism surface with a soft cloth.
WARNING:
Release the cooling system pressure by slowly turning the
coolant expansion tank cap a quarter of a turn. Cover the
expansion tank cap with a thick cloth to prevent the
possibility of scalding.
CAUTIONS:
- Be prepared to collect escaping coolant.
- Since injury such as scalding could be caused by escaping
steam or coolant, make sure the vehicle cooling system is
cool prior to carrying out this procedure.
Remove the coolant expansion tank cap.
Use the pipette to extract a coolant sample.
Raise the cover plate.
Put 2 drops of coolant on the prism surface.
Lower the cover plate.
NOTE:
50% coolant concentration mix provides a freeze point of
-37ºC.
Observe the shadow line on the scale.
Raise the cover plate.
Clean the prism surface with a soft cloth.
- If the coolant concentration mix is at 50%, proceed to Step
20.
- If the coolant concentration mix is below 50%, proceed to
Step 18.
- If the coolant concentration mix is below 50%, proceed to
Step 19.
NOTE:
Coolant concentration mix % must divided by 100. 50%
would be calculated as 0.5
- If the coolant concentration mix is below 50%, the following
calculation steps must be followed.
- Step 1. Multiply the required coolant concentration mix %
by the cooling system capacity.
- Step 2. Multiply the current coolant concentration mix % by
the cooling system capacity.
- Step 3. Subtract the total of step 1 by total of step 2.
- Step 4. Subtract the current coolant concentration mix %
from 1.
- Step 5. Divide the total of step 3 by the total of step 4.
- Drain the coolant quantity given by the calculations and
replace with concentrated antifreeze.
- Proceed to Step 20.
NOTE:
Coolant concentration mix % must divided by 100. 50%
would be calculated as 0.5
- If the coolant concentration mix is above 50%, the following
calculation steps must be followed.
- Step 1. Multiply the current coolant concentration mix % by
the cooling system capacity.
- Step 2. Multiply the required coolant concentration mix %
by the cooling system capacity.
- Step 3. Subtract the total of step 1 by total of step 2.
- Step 5. Divide the total of step 3 by the current coolant
concentration mix %.
- Drain the coolant quantity given by the calculations and
replace with distilled water.
CAUTION:
Correct installation of the coolant expansion tank cap can be
obtained by tightening the cap until 3 audible clicks are
heard.
Install the coolant expansion tank pressure cap.
READ NEXT:
Draining
CAUTIONS:
The engine cooling system must be maintained with the correct
concentration and type of anti-freeze solution to prevent corrosion
and frost damage. Failure to follow this instru
Lower the vehicle.
Refer to: Engine Cover - INGENIUM I4 2.0L Diesel (501-05 Interior
Trim and Ornamentation, Removal and Installation).
Remove the bleed screw.
Remove the bleed screw.
Set the
SEE MORE:
Installation
CAUTIONS:
Make sure the anti-seize compound does not contact the
catalyst monitor sensor tip.
If accidentally dropped or knocked install a new sensor.
Special Tool(s): 310-121
Torque: 48 Nm
CAUTION:
Only tighten the bolts finger tight at this stage
CAUTIONS:
Take extra care n
Note: When Eco program is selected,
heating and ventilation settings are
automatically adjusted to reduce energy
consumption.
Temperature control: Rotate to adjust.
Air distribution: Rotate to direct air
flow to the required areas.
Blower speed: Rotate to adjust air flow
speed through the ve