Acura MDX 2005 Service Manual

The Acura MDX 2005 is a luxury midsize SUV featuring a 3.5L V6 engine, 5-speed automatic transmission, Variable Torque Management 4-wheel drive system, advanced climate control, power windows/locks/mirrors, leather interior, navigation system, and comprehensive safety features including dual-stage front airbags, side curtain airbags, and anti-lock brakes. Below are key sections for maintenance, specifications, troubleshooting, and service procedures.

1. Vehicle Specifications 2. Maintenance Schedule 3. Engine System 4. Transmission & Drivetrain 5. Electrical System 6. Braking System 7. Suspension & Steering 8. Climate Control 9. Body & Interior 10. Diagnostic Procedures 11. Troubleshooting Guide

Vehicle Specifications

Key technical specifications for the 2005 Acura MDX luxury SUV.

Specification	Description
Engine Type	3.5L SOHC V6 VTEC
Horsepower	265 hp @ 5800 rpm
Torque	250 lb-ft @ 3500-5000 rpm
Transmission	5-speed automatic with SportShift
Drivetrain	Variable Torque Management 4WD
Fuel Capacity	19.2 gallons
Curb Weight	4451 lbs
Towing Capacity	4500 lbs
Seating Capacity	7 passengers
Fuel Economy	16 city / 21 highway mpg

Maintenance Schedule

Recommended maintenance intervals for optimal vehicle performance.

Oil and filter change: Every 7,500 miles or 12 months
Tire rotation: Every 7,500 miles
Air filter replacement: Every 30,000 miles
Transmission fluid: Every 30,000 miles
Brake fluid: Every 3 years
Coolant replacement: Every 5 years or 60,000 miles
Spark plugs: Every 105,000 miles
Timing belt: Every 105,000 miles

WARNING! Always use genuine Acura parts and fluids for optimal performance and warranty compliance.

Engine System

Detailed service procedures for the 3.5L V6 engine.

Engine Oil: Capacity 4.5 quarts (with filter)
Coolant: Honda All Season Antifreeze/Coolant Type 2
Spark Plugs: NGK IZFR6K-11S (gap 0.039-0.043 in)
Compression: 210 psi minimum, 28 psi maximum variation
Valve Clearance: Intake 0.20-0.24 mm, Exhaust 0.28-0.32 mm
Fuel Pressure: 50-60 psi at idle
Ignition Timing: 12° BTDC at idle

CAUTION! Allow engine to cool before performing any service procedures.

Transmission & Drivetrain

Service information for automatic transmission and 4WD system.

Component	Specification
Transmission Fluid	Honda ATF-Z1, 3.5 quarts capacity
Fluid Change Interval	Every 30,000 miles under severe conditions
Transfer Case Fluid	Honda Dual Pump Fluid, 1.6 quarts
Rear Differential Fluid	Honda Dual Pump Fluid, 1.4 quarts
Shift Points	1-2: 15 mph, 2-3: 25 mph, 3-4: 40 mph, 4-5: 45 mph

Tip: Check transmission fluid with engine running and transmission in Park.

Electrical System

Electrical specifications and service procedures.

Battery: 12V, 70Ah, CCA 550A
Alternator: 130A output
Fuse Box Locations: Underhood, driver's side dash, passenger's side dash
Bulb Types: Headlight 9006/9005, Brake 7443, Turn 7440NA
Navigation System: DVD-based with voice guidance
Audio System: AM/FM/CD with 8 speakers

Braking System

Brake system specifications and maintenance procedures.

Front brake pads: Replace when worn to 2mm thickness
Rear brake pads: Replace when worn to 2mm thickness
Brake rotor minimum thickness: Front 28.4mm, Rear 16.4mm
Brake fluid: DOT 3 or DOT 4
ABS bleeding: Requires special procedure with scan tool

WARNING! Always replace brake components in axle sets for balanced braking.

Suspension & Steering

Suspension components and steering system service.

Component	Specification
Front Struts	Gas pressurized, replace in pairs
Rear Shocks	Gas pressurized, replace in pairs
Power Steering Fluid	Honda Power Steering Fluid
Wheel Alignment	Front: Camber -0°30'±45', Toe 0±2mm
Tire Size	P235/65R17 103T
Tire Pressure	32 psi front and rear

Climate Control

HVAC system service and maintenance.

Refrigerant: R-134a, 1.54 lbs capacity
Compressor Oil: ND-OIL 8, 5.4 oz
Blower Motor: 12V DC, 3-speed plus auto
Cabin Air Filter: Replace every 15,000-30,000 miles
Heater Core: Flush every 60,000 miles

CAUTION! Only qualified technicians should service A/C system due to high pressure.

Body & Interior

Body maintenance and interior component service.

Door panel removal: Remove screws and clips carefully
Seat removal: Disconnect battery, remove bolts
Headliner: Remove trim pieces and carefully lower
Exterior lights: Remove bezels for access to bulbs
Power window motor: Replace through door panel access

Diagnostic Procedures

Using diagnostic tools and interpreting trouble codes.

OBD-II Connector: Under driver's side dash
MIL Codes: Retrieve with OBD-II scanner
Navigation Diagnostics: Hidden service menu access
Climate Control Codes: Self-diagnostic mode available
ABS Codes: Require Honda/Acura specific scanner

Troubleshooting Guide

Symptom	Possible Cause	Corrective Action
Engine won't start	Battery/ignition/fuel	Check battery voltage, spark, fuel pressure
Transmission slips	Low fluid/worn clutch	Check fluid level and condition
ABS light on	Wheel sensor/fluid	Scan for codes, check sensors and fluid
Overheating	Coolant/thermostat	Check coolant level, thermostat operation
Electrical issues	Battery/alternator	Test battery and charging system
Poor fuel economy	Air filter/oxygen sensor	Replace air filter, check O2 sensors
Steering vibration	Tires/alignment	Balance tires, check alignment

Reset Procedures: Maintenance reminder reset - Turn ignition to ON, press SELECT/RESET until maintenance item displays, press SELECT/RESET for 10 seconds.

Technical Support: Acura Client Relations 1-800-382-2238