Tata Indigo Owner's Manual & Service Book - Tata Motors Customer ...

C
M
Y
K
MAINTENANCE & CAR CARE — Engine Cooling System
Bleeding procedure for Cooling System :
(For filling or reconditioning after complete draining)
a) Fill coolant from the auxiliary tank (Branded premixed engine coolant)
after ensuring all hoses are secured and leak proof.
b) During filling, keep the bleeding screw on the hose from cylinder
head to radiator loose.
c) During coolant filling ensure that the air in the system is removed
from this bleeding screw and only then tighten the screw, using a
screw driver.
d) Start the engine and slowly raise the engine speed and wait for
the temperature to reach 85 o C-90 o C to allow the thermostat to
open up. Engine running at idling speed, open the bleeding screw
which is fitted on the hose between the cylinder head and radiator,
by using a screwdriver to allow any trapped air in the system to
escape. Tighten the bleeding screw and top up with coolant to max.
level.
76
Bleeding Screw
Engine
Radiator
Replacing Engine Coolant :
The cooling system should be completely drained
and refilled with new coolant at specified intervals.
1. Touch the engine and radiator only after
ensuring that they are cold.
2. Remove the auxiliary tank cap.
3. Loosen the drain plug at the bottom of the
radiator.
4. Remove the auxiliary tank from its holder, drain
the coolant and refit it.
5. Flush the radiator by using reverse flow i.e.
radiator drain plug to auxiliary tank with clean
water and close the drain plugs.
6. Pour the premixed ready to use engine coolant
into the radiator until it is full.
7. Fill the auxiliary tank upto the 'MAX' mark and fit
the cap.
8. Ensure that there is no leakage in the system.
9. Bleed the system as per procedure given in this
book.
C
M
Y
K