2006 CADILLAC STS air filter

Engine Air Cleaner/Filter
The engine air cleaner/lter is in the engine
compartment on the driver’s side of the vehicle, near
the front. SeeEngine Compartment Overview on
page 5-12for more information on locating the air
cleaner/lter.
When to Inspect the Engine
Air Cleaner/Filter
Inspect the air cleaner/lter at the MaintenanceII
intervals and replace it at the rst oil change after each
50,000 mile (83 000 km) interval. SeeScheduled
Maintenance on page 6-4for more information. If you
are driving in dusty/dirty conditions, inspect the lter
at each engine oil change.
How to Inspect the Engine
Air Cleaner/Filter
To inspect the air cleaner/lter remove the lter from
the vehicle and lightly shake the lter to release
loose dust and dirt. If the lter remains caked with dirt,
a new lter is required.
To inspect or replace the lter in the 3.6L V6 or
4.6L V8 engines, do the following:
1. Remove the two screws located on the top of
the cover.
2. Disconnect the coolant recovery hose so that it
is not going across the top of the engine air
cleaner/lter.
3. Loosen the clamp and remove the duct from the
passenger’s side of the engine air cleaner/lter. 4.6L V8 Engine shown, 3.6L V6 Engine similar
5-24

Capacities and Specications
The following approximate capacities are given in English and metric conversions. SeeRecommended Fluids and
Lubricants on page 6-12for more information.
ApplicationCapacities
English Metric
Air Conditioning Refrigerant R134a 1.38 lbs 0.63 kg
Cooling System
3.6L V6 11.7 qt 11.1 L
4.4L V8 (V-Series) 13.4 qt 12.7 L
4.6L V8 12.5 qt 11.8 L
Intercooler System 4.4L Engine 2.6 qt 2.5 L
Engine Oil with Filter
3.6L V6 6.0 qt 5.7 L
4.4L V8 (V-Series) 9.0 qt 8.5 L
4.6L V8 8.0 qt 7.6 L
Fuel Tank 17.5 gal 66.2 L
Transmission
5-Speed Automatic 9.5 qt 9.0 L
6-Speed Automatic (V-Series) 6.5 qt 6.2 L
Wheel Nut Torque 100 lb ft 140Y
All capacities are approximate. When adding, be sure to ll to the approximate level as recommended in this
manual. Recheck the uid level after lling.
5-116

Scheduled Maintenance
Service MaintenanceIMaintenanceII
Change engine oil and lter. SeeEngine Oil on page 5-18. Reset oil life system.
SeeEngine Oil Life System on page 5-22.An Emission Control Service.••
Visually check for any leaks or damage.See footnote (k).••
Inspect engine air cleaner lter. If necessary, replace lter. SeeEngine Air
Cleaner/Filter on page 5-24.See footnote (m).•
Check tires for ination pressures and wear. SeeTires on page 5-56. If tire
rotation is recommended for your vehicle, rotate tires. SeeTire Inspection and
Rotation on page 5-70and “Tire Wear Inspection” inAt Least Once a Month
on page 6-9.••
Inspect brake system.See footnote (a).••
Check engine coolant and windshield washer uid levels. If you have the 4.4L V8
supercharged engine, check intercooler uid level. Add uid as needed.••
Perform any needed additional services. See “Additional Required Services”
in this section.••
Inspect suspension and steering components.See footnote (b).•
Inspect engine cooling system.See footnote (c).•
Inspect wiper blades.See footnote (d).•
Inspect restraint system components.See footnote (e).•
Lubricate body components.See footnote (f).•
Check transmission uid level and add uid as needed.•
Replace passenger compartment air lter.See footnote (g).•
6-5

Additional Required Services
The following services should be performed at the rst maintenance service (IorII) after the indicated miles
(kilometers) shown for each item.
Additional Required Services
Service and Miles (Kilometers)25,000
(40 000)50,000
(80 000)75,000
(120 000)100,000
(160 000)125,000
(200 000)150,000
(240 000)
Inspect fuel system for damage
or leaks.• •••••
Inspect exhaust system for loose or
damaged components.• •••••
Replace engine air cleaner lter. See
Engine Air Cleaner/Filter on page 5-24.••
Change automatic transmission uid and
lter (severe service).See footnote (h).•••
Change automatic transmission uid and
lter (normal service).•
For all-wheel-drive vehicles used for
trailer towing: Change transfer case uid.•••
Throttle body service.An Emission
Control Service. See footnotes † and (l).• •••••
Replace spark plugs.An Emission
Control Service.•
6-6

Normal Maintenance Replacement Parts
Replacement parts identied below by name, part number, or specication can be obtained from your GM dealer.
Part GM Part Number ACDelco®Part Number
Engine Air Cleaner/Filter Element 25735595 A2944C
Engine Oil Filter
3.6L V6 25177917 PF2129
4.4L V8 (V-Series) 89017527
1PF261
4.6L V8 89017342 PF61
Passenger Compartment Air Filter 88957450 CF13C
Spark Plugs
3.6L V6 12597464 41-990
4.4L V8 (V-Series) 12592619 41-991
4.6L V8 12571533 41-986
Windshield Wiper Blade (Structureless)
Driver’s Side – 22 inches (56.5 cm) 88958361 —
Passenger’s Side – 21 inches (53.0 cm) 88958359 —
1Notice: If your vehicle is an STS-V model, the engine uses a special oil lter. The use of any other engine
oil lter could lead to lter failure and result in severe engine damage. Damage caused by use of the
wrong engine oil lter would not be covered by your new vehicle warranty.
6-14

A
Accessories and Modications............................ 5-3
Accessory Power Outlet(s)...............................3-46
Adaptive Cruise Control...................................3-19
Adding Equipment to Your Airbag-Equipped
Vehicle.......................................................1-63
Additives, Fuel................................................. 5-6
Add-On Electrical Equipment...........................5-104
Air Cleaner/Filter, Engine.................................5-24
Air Conditioning..............................................3-48
Airbag
Passenger Status Indicator...........................3-61
Readiness Light..........................................3-60
Airbag Sensing and Diagnostic Module (SDM)...... 7-8
Airbag System................................................1-49
Adding Equipment to Your Airbag-Equipped
Vehicle...................................................1-63
How Does an Airbag Restrain?......................1-57
Passenger Sensing System...........................1-59
Servicing Your Airbag-Equipped Vehicle..........1-63
What Makes an Airbag Inate?......................1-57
What Will You See After an Airbag Inates?....1-57
When Should an Airbag Inate?....................1-55
Where Are the Airbags?...............................1-52
All-Wheel Drive...............................................5-50
All-Wheel-Drive (AWD) System.........................4-12
Antenna, Diversity Antenna System..................3-122Antenna, XM™ Satellite Radio
Antenna System........................................3-122
Anti-Lock Brake System (ABS)........................... 4-7
Anti-Lock Brake, System Warning Light..............3-65
Appearance Care
Aluminum or Chrome-Plated Wheels..............5-99
Care of Safety Belts....................................5-97
Chemical Paint Spotting..............................5-101
Cleaning Exterior Lamps/Lenses....................5-98
Cleaning the Inside of Your Vehicle................5-94
Fabric/Carpet..............................................5-96
Finish Care.................................................5-98
Finish Damage..........................................5-101
Instrument Panel, Vinyl, and Other Plastic
Surfaces.................................................5-97
Leather......................................................5-96
Sheet Metal Damage..................................5-100
Speaker Covers..........................................5-97
Tires........................................................5-100
Underbody Maintenance.............................5-101
Vehicle Care/Appearance Materials...............5-102
Washing Your Vehicle...................................5-98
Weatherstrips..............................................5-97
Windshield and Wiper Blades........................5-99
Wood Panels..............................................5-97
Ashtray(s)......................................................3-47
Audio System(s).............................................3-94
Audio Steering Wheel Controls....................3-119
Care of Your CD Player..............................3-122
1

Chains, Tire...................................................5-78
Charging System Light....................................3-63
Check
Engine Light...............................................3-67
Checking Things Under the Hood......................5-10
Chemical Paint Spotting.................................5-101
Child Restraints
Child Restraint Systems...............................1-32
Infants and Young Children...........................1-29
Lower Anchors and Tethers for Children..........1-37
Older Children.............................................1-26
Securing a Child Restraint in a
Rear Seat Position...................................1-44
Securing a Child Restraint in the
Right Front Seat Position..........................1-46
Where to Put the Restraint...........................1-36
Cigarette Lighter.............................................3-47
Cleaning
Aluminum or Chrome-Plated Wheels..............5-99
Exterior Lamps/Lenses.................................5-98
Fabric/Carpet..............................................5-96
Finish Care.................................................5-98
Inside of Your Vehicle..................................5-94
Instrument Panel, Vinyl, and Other Plastic
Surfaces.................................................5-97
Leather......................................................5-96
Speaker Covers..........................................5-97
Tires........................................................5-100
Underbody Maintenance.............................5-101Cleaning (cont.)
Washing Your Vehicle...................................5-98
Weatherstrips..............................................5-97
Windshield and Wiper Blades........................5-99
Wood Panels..............................................5-97
Climate Control System
Air Filter, Passenger Compartment.................3-55
Dual ..........................................................3-48
Outlet Adjustment........................................3-54
Rear ..........................................................3-54
Collision Damage Repair..................................7-10
Comfort Guides, Rear Safety Belt.....................1-23
Compact Spare Tire........................................5-94
Compass.................................................1-7, 2-42
Competitive Driving.........................................4-18
Competitive Driving Mode................................4-10
Control of a Vehicle.......................................... 4-6
Convenience Net............................................2-51
Coolant
Engine Temperature Gage............................3-67
Engine Temperature Warning Light.................3-66
Heater, Engine............................................2-27
Surge Tank Pressure Cap.............................5-30
Cooling System..............................................5-32
Cruise Control................................................3-16
Cruise Control, Adaptive..................................3-19
Cruise Control, Forward Collision Alert (FAC)
System........................................................ 3-9
Cruise Control Light........................................3-72
3

Engine
Air Cleaner/Filter.........................................5-24
Battery.......................................................5-44
Check and Service Engine Soon Light............3-67
Coolant......................................................5-26
Coolant Heater............................................2-27
Coolant Temperature Gage...........................3-67
Coolant Temperature Warning Light................3-66
Drive Belt Routing.......................................6-15
Engine Compartment Overview......................5-12
Exhaust.....................................................2-39
Oil .............................................................5-18
Oil Life System...........................................5-22
Overheated Protection Operating Mode...........5-31
Overheating................................................5-30
Starting......................................................2-25
Entry Lighting.................................................3-39
Event Data Recorders (EDR)............................. 7-8
Extender, Safety Belt.......................................1-26
Exterior Lighting Battery Saver..........................3-38
F
Filter
Engine Air Cleaner......................................5-24
Finish Damage.............................................5-101
Flashers, Hazard Warning.................................. 3-6Flash-to-Pass.................................................3-12
Flat Tire........................................................5-81
Flat Tire, Changing.........................................5-83
Flat Tire, Storing.............................................5-92
Fluid
Automatic Transmission................................5-26
Power Steering...........................................5-39
Windshield Washer......................................5-40
Fog Lamp Light..............................................3-71
Fog Lamps ....................................................3-37
Forward Collision Alert (FAC) System.................. 3-9
Front Axle......................................................5-52
Fuel............................................................... 5-5
Additives...................................................... 5-6
California Fuel.............................................. 5-6
Filling a Portable Fuel Container....................5-10
Filling Your Tank........................................... 5-8
Fuels in Foreign Countries.............................. 5-7
Gage .........................................................3-72
Gasoline Octane........................................... 5-5
Gasoline Specications.................................. 5-6
Fuses
Fuses and Circuit Breakers.........................5-105
Rear Underseat Fuse Block.........................5-110
Underhood Fuse Block...............................5-106
Windshield Wiper.......................................5-104
5