2011 Acura RDX engine coolant

1. Make sure the engine and radiatorare cool.
2. Relieve any pressure in the cooling system by turning the radiator cap
counterclockwise, without
pressing down.
3. Remove the radiator cap by pushing down and turning
counterclockwise.
4. The coolant level should be up tothe base of the filler neck. Add
coolant if it is low.
Pour the coolant slowly and
carefully so you do not spill any.
Clean up any spills immediately; it
could damage components in the
engine compartment. 5. Put the radiator cap back on, and
tighten it fully.
6. Pour coolant into the reserve tank. Fill it halfway between the MAX
and MIN marks. Put the cap back
on the reserve tank.
Do not add any rust inhibitors or
other additives to your vehicle's
cooling system. They may not be
compatible with the coolant or
engine components.
RADIATOR CAP
RESERVE TANK
MAX
MIN
Engine Coolant
425
Maintenance
10/06/08 17:42:32 11 ACURA RDX MMC North America Owner's M 50 31STK640 enu

The reading of the vehicle's
temperature gauge on the multi-
information display should stay in the
midrange. If it climbs to the H (Hot)
mark, you should determine the
reason (hot day, driving up a steep
hill, etc.).
If the coolant temperature rises to
224°F (118°C) or more, the
temperature gauge will appear on the
display and blink for several times.
At the same time, the beeper will
sound once.
If your vehicle overheats, you should
take immediate action. The only
indication may be the temperature
gauge climbing to the H (Hot) mark.
Or you may see steam or spray
coming from under the hood.
Driving with the temperature gauge
reading at the H (Hot) mark can cause
serious damage to the engine.
Steam and spray from an
overheated engine can
seriously scald you.
Do not open the hood if steam
is coming out.
1. Safely pull to the side of the road. Put the transmission in Park, and
set the parking brake. Turn off all
accessories, and turn on the
hazard warning lights. 2. If you see steam and/or spray
coming from under the hood, turn
off the engine. Wait until you see
no more signs of steam or spray,
then open the hood.
3. If you do not see steam or spray, leave the engine running and
watch the temperature gauge. If
the high heat is due to
overloading, the engine should
start to cool down almost
immediately. If it does, wait until
the temperature gauge comes
down to the midpoint, then
continue driving.
4. If the temperature gauge reading stays at the H (Hot) mark, turn off
the engine.
CONTINUED
If the Engine Overheats
463
Taking Care of the Unexpected
10/06/08 17:42:32 11 ACURA RDX MMC North America Owner's M 50 31STK640 enu

5. Look for any obvious coolantleaks, such as a split radiator hose.
Everything is still extremely hot,
so use caution. If you find a leak, it
must be repaired before you
continue driving (see Emergency
Towing on page 475).
6. If you do not find an obvious leak, check the coolant level in the
radiator reserve tank. Add coolant
if the level is below the MIN mark.
7. If there was no coolant in the reserve tank, you may need to add
coolant to the radiator. Let the
engine cool down until the reading
reaches the middle of the
temperature gauge or lower before
checking the radiator.
Removing the radiator cap
while the engine is hot can
cause the coolant to spray out,
seriously scalding you.
Always let the engine and
radiator cool down before
removing the radiator cap.
8. Using gloves or a large heavy cloth, turn the radiator cap
counterclockwise, without pushing
down, to the first stop. After the
pressure releases, push down on
the cap, and turn it until it comes
off. 9. Start the engine, and set the
temperature to maximum heat
(climate control to AUTO at
‘‘
’’). Add coolant to the radiator
up to the base of the filler neck. If
you do not have the proper coolant
mixture available, you can add
plain water. Remember to have the
cooling system drained and refilled
with the proper mixture as soon as
you can.
10. Put the radiator cap back on tightly. Run the engine, and watch
the temperature gauge. If it goes
back to the H mark, the engine
needs repair (see Emergency
Towing on page 475).
11. If the temperature stays normal, check the coolant level in the
radiator reserve tank. If it has gone
down, add coolant to the MAX
mark. Put the cap back on tightly.
If the Engine Overheats46410/06/08 17:42:32 11 ACURA RDX MMC North America Owner's M 50 31STK640 enu

DimensionsLength182.5 in (4,635 mm)
Width 73.6 in (1,870 mm)
Height 65.2 in (1,655 mm)
Wheelbase 104.3 in (2,650 mm)
Track Front 61.9 in (1,572 mm)
Rear 62.6 in (1,590 mm)WeightsGross vehicle weight rating See the certification label attached to
the driver's doorjamb.EngineType Water cooled 4-stroke DOHC i-VTEC
4 cylinder gasoline engine with turbo charger, intercooler
Bore x Stroke 3.39 x 3.90 in (86.0 x 99.0 mm)
Displacement 140.3 cu-in (2,300 cm
3)
Compression ratio 8.8
Spark plugs SILKR8A-S (NGK)
Seating CapacitiesTotal 5
Front 2
Rear 3
CapacitiesFuel tankApprox.
18.0 US gal (68 L)
Engine oil Change
ꭧ 1
Including
filter 5.0 US qt (4.7 L)
Without filter 4.8 US qt (4.5 L)
Total 6.1 US qt (5.8 L)
Engine coolant Change
ꭧ 2
1.85 US gal (7.0 L)
Total 2.22 US gal (8.4 L)
Automatic
transmission fluid Change
2WD 3.0 US qt (2.8 L)
4WD 3.1 US qt (2.9 L)
Total 2WD 8.8 US qt (8.3 L)
4WD 8.2 US qt (7.8 L)
Rear differential
fluid (4WD) Change
2.67 US qt (2.53 L)
Total 2.93 US qt (2.77 L)
Transfer assembly
fluid (4WD) Change
0.45 US qt (0.43 L)
Total 0.48 US qt (0.45 L)
Windshield
washer reservoir U.S. Vehicles 2.6 US qt (2.5 L)
Canada
Vehicles 4.8 US qt (4.5 L)
ꭧ1: Excluding the oil remaining in the engine
ꭧ2: Including the coolant in the reserve tank and that remaining in the engine Reserve tank capacity:
0.18 US gal (0.7 L)
Specifications48010/06/08 17:42:32 11 ACURA RDX MMC North America Owner's M 50 31STK640 enu

EngineAdding Engine Coolant
...........
424
If it Won't Start
........................
459
Malfunction Indicator
Lamp
.............................
65, 466
Oil Life Indicator
.....................
411
Oil Pressure Indicator
.......
65, 465
Overheating
............................
463
Specifications
..........................
480
Speed Limiter
..........................
378
Starting
...................................
374
Engine Coolant
..........................
424
Engine Number
.........................
479
Ethanol in Gasoline
....................
352
Evaporative Emissions Controls
..................................
487
Exhaust Emissions Controls
......
488
Exhaust Fumes
............................
57
Expectant Mothers, Use of Seat Belts by
....................................
18
F
Fan, Interior
...............................
166
Features
.....................................
163 Filters
Dust and Pollen
.......................
439
Oil
...........................................
422
Flashers, Hazard Warning
.........
121
Flat Tire, Changing a
.................
455
Floor Mats
.................................
438
Fluids Automatic Transmission
.........
427
Brake
......................................
429
Location
..................................
419
Power Steering
........................
430
Windshield Washer
.................
426
FM/AM Radio Reception
...........
287
Fog Lights
..................................
119
Folding the Rear Seats Down
.....
138
Four-way Flashers
......................
121
Front Airbags
.........................
10, 26
Front Door Pockets
....................
155
Front Seat Heaters
...................................
141
Front Seat Power
Adjustments
...........................
134
Fuel
............................................
352
Economy
.................................
358
Fill Door and Cap
....................
353
Gauge
......................................
73 Low Fuel Indicator
...................
68
Octane Requirement
...............
352
Reserve Indicator
.....................
68
Tank, Filling the
......................
353
Tighten Fuel Cap
....................
354
Fuel Economy
............................
358
Fuses, Checking the
..................
470
G
Gas Mileage, Improving
.............
359
Gasoline
.....................................
352
Low Fuel Indicator
...................
68
Octane Requirement
...............
352
Tank, Refueling
.......................
353
Gas Station Procedures
..............
353
Gauges Fuel
..........................................
73
Speedometer
............................
73
Tachometer
..............................
73
Turbo Boost Meter
..................
73
Gearshift Lever Positions Automatic
Transmission
...............
376, 377
Glove Box
..................................
155
IndexIV10/06/08 17:42:32 11 ACURA RDX MMC North America Owner's M 50 31STK640 enu

Protecting Children
......................
36
General Guidelines
..................
36
Protecting Infants
.....................
41
Protecting Larger Children
......
53
Protecting Small Children
........
42
Using Child Seats with Tethers
.................................
51
Using LATCH
..........................
46
R
Radiator Overheating
.................
463
Radio/CD Sound System
...........
172
Radio Theft Protection
...............
292
Readiness Codes
........................
490
Rear Lights, Bulb Replacement
...........................
433
Rear Seat Folding Down
.............
138
Rearview Mirror
.........................
146
Rearview Mirror with Rearview Camera Display
......................
348
Rear Window Defogger
..............
121
Rear Window Wiper and
Washer
...................................
115 Recalling a Memorized Driving
Position
..................................
133
Reclining the Seat Backs
............
134
Refueling
....................................
353
Reminder Indicators
.....................
64
Remote Audio Controls
..............
289
Remote Transmitter
...................
130
Replacement Information Dust and Pollen Filter
.............
439
Engine Oil and Filter
...............
422
Fuses
......................................
469
Light Bulbs
.............................
431
Schedule
.................................
418
Spark Plugs
.............................
480
Tires
.......................................
447
Wiper Blades
..........................
440
Replacing Seat Belts After a Crash
........................................
23
Reporting Safety Defects (U.S. only)
.......................................
496
Required Engine Oil
..................
420
Reserve Tank, Engine Coolant
............................
357, 424
Restraint, Child
............................
36
Reverse Gear Position
................
377
Reverse Tilt Door Mirror
...........
147 Rotation, Tire
.............................
447
S
Safety Belts
..............................
9, 20
Safety Defects, Reporting (U.S. only)
.......................................
496
Safety Features
..............................
8
Airbags
...............................
10, 24
Door Locks
..............................
12
Head Restraints
........................
15
Seat Belts
........................
9, 15, 20
Seats & Seat-Backs
..............
13, 14
Safety Labels, Location of
.............
58
Safety Messages
..........................
iii
Seat Belts
.................................
9, 20
Additional Information
.............
20
Advice for Pregnant Women
....
18
Automatic Seat Belt Tensioners
...........................
22
Cleaning
..................................
438
Lap/Shoulder Belt
..............
15, 21
Maintenance
............................
23
Reminder Indicator and Beeper
.............................
20, 64
IndexVIII10/06/08 17:42:32 11 ACURA RDX MMC North America Owner's M 50 31STK640 enu