2011 BUICK LUCERNE radiator

Black plate (15,1)Buick Lucerne Owner Manual - 2011
A.Underhood Fuse Block on page 6‑108.
B. Remote Positive (+) Battery Terminal. See Jump
Starting on page 6‑44.
C. Windshield Washer Fluid Reservoir. See “Adding
Washer Fluid” underWindshield Washer Fluid
on
page 6‑38.
D. Engine Coolant Recovery Tank. See Cooling
System on page 6‑27.
E. Radiator Pressure Cap. See Cooling System
on
page 6‑27.
F. Power Steering Fluid Reservoir. See Power
Steering Fluid on page 6‑37. G. Engine Oil Fill Cap. See
“When to Add Engine Oil”
under Engine Oil on page 6‑18.
H. Engine Oil Dipstick. See “Checking Engine Oil”
under Engine Oil on page 6‑18.
I. Automatic Transmission Fluid Dipstick. See “Checking the Fluid Level” underAutomatic
Transmission Fluid on page 6‑24.
J. Brake Fluid Reservoir. See “Brake Fluid”under
Brakes on page 6‑39.
K. Engine Air Cleaner/Filter on page 6‑23.
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Black plate (27,1)Buick Lucerne Owner Manual - 2011
3. After adding fluid, recheck the fluid level asdescribed under “How to Check Automatic
Transmission Fluid” earlier in this section.
4. When the correct fluid level is obtained, push the dipstick back in all the way.
How to Check Automatic Transmission
Fluid (4.6L Engine)
For the 4.6L V8 engine, it is not necessary to check
the transmission fluid level. A transmission fluid leak is
the only reason for fluid loss. If a leak occurs, take the
vehicle to your dealer service department and have it
repaired as soon as possible.
Cooling System
The cooling system allows the engine to maintain the
correct working temperature.
3.9L Engine
A. Coolant Recovery Tank
B. Radiator Pressure Cap
C. Electric Engine Cooling Fans
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Black plate (28,1)Buick Lucerne Owner Manual - 2011
4.6L Engine
A. Coolant Surge Tank with Pressure Cap
B. Electric Engine Cooling Fans
{WARNING:
An electric engine cooling fan under the hood can
start up even when the engine is not running and
can cause injury. Keep hands, clothing, and tools
away from any underhood electric fan.
{WARNING:
Heater and radiator hoses, and other engine
parts, can be very hot. Do not touch them. If you
do, you can be burned.
Do not run the engine if there is a leak. If you run
the engine, it could lose all coolant. That could
cause an engine fire, and you could be burned.
Get any leak fixed before you drive the vehicle.
Notice: Using coolant other than DEX-COOL
®can
cause premature engine, heater core, or radiator
corrosion. In addition, the engine coolant could
require changing sooner, at 50 000 km (30,000 mi)
or 24 months, whichever occurs first. Any repairs
would not be covered by the vehicle warranty.
Always use DEX-COOL (silicate-free) coolant in the
vehicle.
Engine Coolant (4.6L Engine)
The cooling system in the vehicle is filled with
DEX-COOL®engine coolant. This coolant is designed
to remain in the vehicle for five years or 150,000 miles
(240 000 km), whichever occurs first.
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Black plate (29,1)Buick Lucerne Owner Manual - 2011
The following explains the cooling system and how
to check and add coolant when it is low. If there is a
problem with engine overheating, seeEngine
Overheating on page 6‑35.
What to Use
{WARNING:
Adding only plain water or some other liquid to
the cooling system can be dangerous. Plain water
and other liquids, can boil before the proper
coolant mixture will. The coolant warning system
is set for the proper coolant mixture. With plain
water or the wrong mixture, the engine could
get too hot but you would not get the overheat
warning. The engine could catch fire and you or
others could be burned. Use a 50/50 mixture of
clean, drinkable water and DEX-COOL coolant.
Use a 50/50 mixture of clean, drinkable water and
DEX-COOL
®coolant. If using this mixture, nothing else
needs to be added. This mixture:
.Gives freezing protection down to −34°F (−37°C),
outside temperature.
.Gives boiling protection up to 265°F (129°C),
engine temperature.
.Protects against rust and corrosion.
.Will not damage aluminum parts.
.Helps keep the proper engine temperature.
Notice: If an improper coolant mixture is used, the
engine could overheat and be badly damaged. The
repair cost would not be covered by the vehicle
warranty. Too much water in the mixture can freeze
and crack the engine, radiator, heater core, and
other parts.
Notice: If extra inhibitors and/or additives are used
in the vehicle's cooling system, the vehicle could be
damaged. Use only the proper mixture of the engine
coolant listed in this manual for the cooling system.
See Recommended Fluids and Lubricants
on
page 7‑8for more information.
Never dispose of engine coolant by putting it in
the trash, pouring it on the ground, or into sewers,
streams or bodies of water. Have the coolant changed
by an authorized service center, familiar with legal
requirements regarding used coolant disposal. This will
help protect the environment and your health.
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Black plate (31,1)Buick Lucerne Owner Manual - 2011
You can remove the
coolant surge tank
pressure cap when the
cooling system, including
the coolant surge tank
pressure cap and upper
radiator hose, is no
longer hot.
1. Turn the pressure cap slowly counterclockwise. If you hear a hiss, wait for that to stop. A hiss
means there is still some pressure left.
2. Then keep turning the cap and remove it.
3. Fill the coolant surge tank with the proper
mixture to the FULL
COLD mark on the
side of the coolant
surge tank. 4. With the coolant surge tank cap off, start the
engine and let it run until you can feel the upper
radiator hose getting hot. Watch out for the engine
cooling fans.
By this time, the coolant level inside the coolant
surge tank may be lower. If the level is lower, add
more of the proper mixture to the coolant surge
tank until the level reaches the FULL COLD mark
on the side of the coolant surge tank.
5. Then replace the cap. Be sure the cap is hand‐tight and fully seated.
If coolant is needed, add the proper DEX-COOL
®
coolant mixture at the coolant recovery tank.
Notice: If the pressure cap is not tightly installed,
coolant loss and possible engine damage may
occur. Be sure the cap is properly and tightly
secured.
Engine Coolant (3.9L Engine)
The cooling system in the vehicle is filled with
DEX-COOL®engine coolant. This coolant is designed
to remain in the vehicle for five years or 150,000 miles
(240 000 km), whichever occurs first.
The following explains the cooling system and how
to check and add coolant when it is low. If there is
a problem with engine overheating, see Engine
Overheating on page 6‑35.
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Black plate (32,1)Buick Lucerne Owner Manual - 2011
What to Use
{WARNING:
Adding only plain water or some other liquid to the
cooling system can be dangerous. Plain water
and other liquids, can boil before the proper
coolant mixture will. The coolant warning system
is set for the proper coolant mixture. With plain
water or the wrong mixture, the engine could
get too hot but you would not get the overheat
warning. The engine could catch fire and you or
others could be burned. Use a 50/50 mixture of
clean, drinkable water and DEX-COOL coolant.
Use a 50/50 mixture of clean, drinkable water and
DEX-COOL coolant. If using this mixture, nothing else
needs to be added. This mixture:
.Gives freezing protection down to −34°F (−37°C),
outside temperature.
.Gives boiling protection up to 265°F (129°C),
engine temperature.
.Protects against rust and corrosion.
.Will not damage aluminum parts.
.Helps keep the proper engine temperature.
Notice: If an improper coolant mixture is used, the
engine could overheat and be badly damaged. The
repair cost would not be covered by the vehicle
warranty. Too much water in the mixture can freeze
and crack the engine, radiator, heater core, and
other parts.
Notice: If extra inhibitors and/or additives are
used in the vehicle's cooling system, the vehicle
could be damaged. Use only the proper mixture
of the engine coolant listed in this manual for the
cooling system. See Recommended Fluids and
Lubricants
on page 7‑8for more information.
Never dispose of engine coolant by putting it in
the trash, pouring it on the ground, or into sewers,
streams or bodies of water. Have the coolant changed
by an authorized service center, familiar with legal
requirements regarding used coolant disposal. This will
help protect the environment and your health.
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Black plate (34,1)Buick Lucerne Owner Manual - 2011
How to Add Coolant to the Radiator
{WARNING:
An electric engine cooling fan under the hood can
start up even when the engine is not running and
can cause injury. Keep hands, clothing, and tools
away from any underhood electric fan.
{WARNING:
Steam and scalding liquids from a hot cooling
system can blow out and burn you badly. They
are under pressure, and if you turn the surge tank
pressure cap—even a little —they can come
out at high speed. Never turn the cap when the
cooling system, including the surge tank pressure
cap, is hot. Wait for the cooling system and surge
tank pressure cap to cool if you ever have to turn
the pressure cap. If coolant is needed, add the proper mixture directly to
the radiator, but be sure the cooling system is cool
before this is done.
1. You can remove
the pressure cap
when the cooling
system, including the
pressure cap and
upper radiator hose is
no longer hot. Turn the
pressure cap slowly
counterclockwise.
2. If you hear a hiss, wait for that to stop. A hiss means that there is still some pressure left. Keep
turning the pressure cap and remove it.
3. Fill the cooling system with the proper DEX-COOL coolant mixture, up to the base of the filler neck.
See Engine Coolant (4.6L Engine)
on page 6‑28orEngine Coolant (3.9L Engine) on page 6‑31.
4. Then fill the coolant recovery tank to the COLD FILL line.
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