Sumo Armoured LBPV - Tata Motors Customer Care

Vehicle maintenance
Engine Cooling System
Engine Coolant Tank
Engine Cooling System :
If engine overheating occurs, there could
be a fault in the cooling system which
may be on account of :
1. Less coolant in the cooling system
or dirt / scale having accumulated
inside cooling water passages
especially in the radiator core.
2. Choking of radiator passages due
to foreign material or damages.
3. Defective thermostat.
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Radiator Cap
4. Defective coolant temp. sensor.
5. Coolant leakage.
6. Radiator cap not sealing properly.
7. A.C. condenser fan not working
8. Excessive refrigerant charging in
the A.C. system.
Prevention of Rust Formation :
To prevent rust formation in the radiator
use premixed recommended anti-freeze
coolant.
This is sufficient to operate the vehicle
upto - 40 0 C.
Replacing Engine Coolant :
The cooling system should be
completely drained and refilled with new
coolant at specified intervals.
1. Ensure engine and radiator are
cool enough to touch.
2. Remove the radiator cap.
3. Loosen drain plug on the bottom
of radiator. Remove cylinder block
drain plug from engine block.
4. Remove the auxiliary tank from its
holder and drain the coolant.
5. Flush radiator and block with clean
water and close the drain plugs.
6. Pour the premixed coolant into
radiator until it is full.
7. Fill the auxiliary tank upto high
mark.
8. Ensure no leakage in the system.