engine coolant Acura RDX 2012 User Guide

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 Overheats46411/06/16 17:42:51 12 ACURA RDX MMC North America Owner's M 50 31STK650 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
ᤳ 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
ᤳ 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)
SH-AWD 3.1 US qt (2.9 L)
Total 2WD 8.8 US qt (8.3 L)
SH-AWD 8.2 US qt (7.8 L)
Rear differential
fluid (SH-AWD) Change 2.67 US qt (2.53 L)
Total 2.93 US qt (2.77 L)
Transfer assembly
fluid (SH-AWD) 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)
ᤳ1: Excluding the oil remaining in the engine
ᤳ2: Including the coolant in the reserve tank and that remaining in the engine Reserve tank capacity:
0.18 US gal (0.7 L)
Specifications48011/06/16 17:42:51 12 ACURA RDX MMC North America Owner's M 50 31STK650 enu

Customized Settings
....................
82
D
DANGER, Explanation of
.............
iii
Dashboard
...............................
3, 62
Daytime Running Lights
............
119
Dead Battery
..............................
461
Defogger, Rear Window
.............
121
Defrosting the Windows
............
167
Dimensions
................................
480
Dimming the Headlights
............
116
Dipstick Automatic Transmission
.........
427
Engine Oil
...............................
357
Directional Signals
...............
69, 116
Disc Brake Wear Indicators.......
387
Disc Care
...................................
257
Disc Changer
......................
185, 239
Disc Changer Error Messages
........................
195, 255
Disc Player
..........................
185, 239
Disposal of Used Oil
...................
423
Doors Childproof Door Locks
............
127 Locking and Unlocking
...........
126
Power Door Locks
..................
126
DOT Tire Quality Grading (U.S. Vehicles)
................................
482
Driver and Passenger Safety
..........
5
Driving
.......................................
371
Economy
.................................
358
Driving Guidelines
.....................
372
Driving Position Memory System
...................................
148
Driving with the Paddle Shifters
...................................
380
Dust and Pollen Filter
................
439
E
Economy, Fuel
...........................
358
Emergencies on the Road
..........
453
Battery, Jump Starting
.............
461
Brake System Indicator
...
467, 468
Changing a Flat Tire
...............
455
Charging System Indicator
........................
65, 465
Checking the Fuses
................
470
Driving with a Flat Tire
...........
455 Hazard Warning Flashers
.......
121
Jump Starting
..........................
461
Low Oil Pressure Indicator
........................
65, 465
Malfunction Indicator Lamp
.............................
65, 466
Overheated Engine
.................
463
Towing
....................................
475
Emergency Brake
......................
150
Emergency Flashers
..................
121
Emergency Towing
....................
475
Emissions Controls
....................
487
Emissions Testing
......................
490
Engine Adding 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
CONTINUED
Index
III
INDEX
11/06/16 17:42:51 12 ACURA RDX MMC North America Owner's M 50 31STK650 enu

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
....................................
354
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
............
496
Required Engine Oil
..................
420
Reserve Tank, Engine Coolant
............................
358, 424
Restraint, Child
............................
36
Reverse Gear Position
................
377
Reverse Tilt Door Mirror
...........
147
Rotation, Tire
.............................
447
S
Safety Belts
..............................
9, 20
Safety Defects, Reporting
...........
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
System Components
................
20
Use During Pregnancy
.............
18
Wearing a Lap/Shoulder Belt
..................................
15, 21
Seats
..........................................
134
Armrest
...................................
138
Head Restraints
.......................
135
Heaters
...................................
141
Position Memory
....................
148
Seats, Adjusting the
...................
134
Security System
.........................
294
Security System Indicator
............
70
Sensors
Driver's Seat Position Sensor
...
28
Front Passenger's Weight Sensors
................................
28
Impact Sensors
........................
24
Serial Number
............................
478
IndexVIII11/06/16 17:42:51 12 ACURA RDX MMC North America Owner's M 50 31STK650 enu