Infiniti FX45 2003-2008 HVAC Specifications
Explore detailed HVAC system specifications for the 2003-2008 Infiniti FX45, including component details, performance metrics, and maintenance tips. Ideal for technicians and owners.
Overview Specifications
This document provides detailed specifications and technical information about the HVAC (Heating, Ventilation, and Air Conditioning) system of the 2003-2008 Infiniti FX45. It is designed to assist users in understanding the system's features, functionality, and maintenance requirements. Use this guide to navigate through sections, search for specific details, and access quick-reference specifications for efficient troubleshooting and system optimization.
How to Use
Use the search functionality to locate specific terms or components within the document. Enter keywords related to the HVAC system, such as 'blower motor' or 'refrigerant type,' to quickly find relevant information.
Navigate through the document by scrolling through sections or using the table of contents. Each major section is divided into subsections, allowing you to easily locate detailed information about specific HVAC components and features.
Key Specifications
Cooling Capacity
18,000 BTU/h
Heating Capacity
24,000 BTU/h
Refrigerant Type
R134a
Airflow Rate
400-600 CFM
Compressor Power
400W
Available Specifications
HVAC System Overview
This section provides a high-level overview of the HVAC system in the 2003-2008 Infiniti FX45. It covers the system's primary components, functionality, and integration with the vehicle's overall climate control system.
HVAC System Overview
This section provides a high-level overview of the HVAC system in the 2003-2008 Infiniti FX45. It covers the system's primary components, functionality, and integration with the vehicle's overall climate control system.
System Components
- Dual-zone automatic climate control
- Blower motor and fan assembly
- Heater core and evaporator core
- Refrigerant lines and compressor
- Air distribution ducts and vents
- Control panel and sensors
Functionality
- Automatic temperature regulation for driver and passenger
- Defrost and defogging capabilities
- Air recirculation mode for improved efficiency
- Integration with rear HVAC system (if equipped)
- Diagnostic system for error detection
Maintenance and Troubleshooting
This section outlines maintenance procedures and troubleshooting tips for the HVAC system. It includes information on routine checks, common issues, and solutions to ensure optimal performance.
Maintenance and Troubleshooting
This section outlines maintenance procedures and troubleshooting tips for the HVAC system. It includes information on routine checks, common issues, and solutions to ensure optimal performance.
Routine Maintenance
- Replace cabin air filter every 15,000-30,000 miles
- Check refrigerant levels annually
- Inspect blower motor and fan for debris
- Lubricate moving parts as needed
- Test system functionality before seasonal changes
Common Issues
- Weak airflow due to clogged filters
- Unusual noises from blower motor
- Inconsistent temperature control
- Refrigerant leaks
- Faulty sensors or control panel
Technical Specifications
This section provides detailed technical specifications for the HVAC system, including component dimensions, performance metrics, and compatibility information.
Technical Specifications
This section provides detailed technical specifications for the HVAC system, including component dimensions, performance metrics, and compatibility information.
Performance Metrics
- Cooling capacity: 18,000 BTU/h
- Heating capacity: 24,000 BTU/h
- Airflow rate: 400-600 CFM
- Refrigerant type: R134a
- Compressor power consumption: 400W
Component Dimensions
- Evaporator core size: 12 x 8 x 2 inches
- Heater core size: 10 x 6 x 2 inches
- Blower motor diameter: 6 inches
- Refrigerant line diameter: 0.5 inches
- Control panel dimensions: 8 x 4 inches
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Component Specifications
Overview
- Type
- Automatic Climate Control System
- Configuration
- Dual-Zone
- Platform
- FX45 SUV
- Material
- High-Density Plastic and Aluminum
- Location
- Front Dashboard and Rear Console
Dimensions
- Blower Unit Width
- 12.5 inches / 31.75 cm
- Blower Unit Height
- 8.2 inches / 20.83 cm
- Blower Unit Depth
- 6.7 inches / 17.02 cm
- Condenser Width
- 22.8 inches / 57.91 cm
- Condenser Height
- 14.5 inches / 36.83 cm
- Evaporator Width
- 10.3 inches / 26.16 cm
- Evaporator Height
- 7.8 inches / 19.81 cm
Materials
- Blower Fan
- High-Strength ABS Plastic
- Condenser
- Aluminum Fins with Copper Tubing
- Evaporator
- Aluminum Core with Plastic Housing
- Ducting
- Reinforced Polypropylene
Features
- Climate Control
-
- Dual-Zone Temperature Adjustment
- Automatic Air Recirculation
- Rear Seat Ventilation
- Defrost Timer
- Air Quality
-
- Cabin Air Filter
- Odor Reduction System
- Pollen Filtration
- Airflow Control
-
- Multi-Speed Blower
- Adjustable Vents
- Footwell Air Distribution
- Display
-
- LCD Temperature Display
- Auto Mode Indicator
- Fan Speed Indicator
- Sensors
-
- Interior Temperature Sensor
- Sunload Sensor
- Humidity Sensor
Safety Features
- Overheat Protection
-
- High-Temperature Cutoff
- Thermal Fuse
- Electrical Safety
-
- Short-Circuit Protection
- Ground Fault Detection
- System Monitoring
-
- Low Refrigerant Alert
- Compressor Overload Protection
Comfort Features
- Temperature Control
-
- Precision Temperature Adjustment
- Quick Cooling Mode
- Airflow Options
-
- Face-Level Ventilation
- Foot-Level Ventilation
- Combined Mode
- Noise Reduction
-
- Quiet Blower Operation
- Vibration Dampening
- Convenience
-
- Auto Start/Stop
- Memory Settings for Driver Preferences
Accessories
- Filters
-
- Cabin Air Filter
- Pollen Filter
- Charcoal Odor Filter
- Controls
-
- Rear Seat Control Panel
- Steering Wheel Controls
- Remote Start Integration
- Upgrades
-
- High-Performance Blower Motor
- Enhanced Airflow Ducts
- UV-C Air Purifier
Maintenance
- Service interval
- Every 15,000 miles or 12 months
- Service Items
-
- Inspect and Replace Cabin Air Filter
- Check Refrigerant Levels
- Inspect Blower Motor Operation
- Clean Evaporator and Condenser Coils
- Test Temperature Sensors
- Maintenance Notes
- Use only OEM-approved refrigerants and lubricants for optimal performance.
Warranty
- Basic
- Miles: 36,000Years: 3Coverage: Parts and Labor
- Powertrain
- Miles: 60,000Years: 5Coverage: Compressor and Blower Motor
- Corrosion
- Miles: UnlimitedYears: 7Coverage: HVAC Housing and Ducts
- Emissions
- Miles: 80,000Years: 8Coverage: Refrigerant System Components
Production Details
- Manufacturer
- Infiniti
- Manufacturing Process
-
- Injection Molding for Plastic Components
- Aluminum Extrusion for Condenser
- Automated Assembly Line
- Quality Control
- Testing: Pressure Testing for Refrigerant Lines, Airflow Efficiency Testing, Temperature CalibrationCertifications: ISO 9001, SAE J2765 Compliance
- Sustainability Practices
-
- Recyclable Materials Used
- Low-Emission Refrigerant
- Energy-Efficient Manufacturing
- Production Metrics
- Units Per Year: 50,000Defect Rate: 0.5%Lead Time: 4 weeks
Service Information for HVAC Service
Maintenance and service requirements specific to the HVAC system
- Inspect and Replace Cabin Air Filter
- Check Refrigerant Levels
- Test Blower Motor Operation
- Inspect Ducts for Blockages
- Clean Exterior Condenser
Ensure proper refrigerant levels to avoid compressor damage.
- Replace Cabin Air Filter
- Inspect Evaporator Coils
- Check Electrical Connections
- Test Temperature Sensors
- Lubricate Blower Motor Bearings
Use only OEM-approved lubricants for blower motor maintenance.
- Flush and Recharge Refrigerant System
- Inspect and Clean Condenser Coils
- Replace Blower Motor if Necessary
- Test Compressor Performance
- Inspect HVAC Control Module
Major service requires specialized tools and certified technicians.
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 Is the HVAC system compatible with aftermarket parts?
Is the HVAC system compatible with aftermarket parts?
The HVAC system in the 2003-2008 Infiniti FX45 is designed to work with OEM parts for optimal performance. While some aftermarket parts may fit, compatibility is not guaranteed, and using non-OEM components could affect system efficiency and longevity. Always verify compatibility with the manufacturer or a certified technician before installation.
Q2 What are the maintenance requirements for the HVAC system?
What are the maintenance requirements for the HVAC system?
Regular maintenance for the HVAC system includes checking and replacing the cabin air filter every 15,000-30,000 miles, inspecting refrigerant levels annually, and ensuring the compressor and blower motor are functioning properly. It's also recommended to clean the evaporator and condenser coils periodically to maintain optimal airflow and cooling efficiency.
Q3 How do I replace the cabin air filter in the FX45?
How do I replace the cabin air filter in the FX45?
To replace the cabin air filter, locate the filter housing behind the glove compartment. Open the glove box, remove the retaining screws, and carefully detach the housing cover. Slide out the old filter and insert the new one, ensuring it’s oriented correctly. Reassemble the housing and glove box. Refer to the owner’s manual for detailed instructions.
Q4 What should I do if the HVAC system is not cooling properly?
What should I do if the HVAC system is not cooling properly?
If the HVAC system isn’t cooling, check the refrigerant levels and look for leaks. Inspect the compressor and blower motor for proper operation. Ensure the cabin air filter isn’t clogged. If the issue persists, it may be due to a faulty thermostat, condenser, or evaporator. Consult a certified technician for a thorough diagnosis.
Q5 How can I optimize the performance of the HVAC system?
How can I optimize the performance of the HVAC system?
To optimize HVAC performance, regularly clean or replace the cabin air filter, ensure refrigerant levels are correct, and inspect the system for leaks. Use the recirculation mode to reduce strain on the system. Park in shaded areas to minimize heat buildup, and have the system professionally serviced annually to maintain efficiency.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
Infiniti FX45 HVAC Service Manual
Coming SoonDetailed service manual covering HVAC system components, diagnostics, and repair procedures for the 2003-2008 Infiniti FX45.
HVAC System Technical Service Bulletin
Coming SoonTechnical bulletin addressing common HVAC issues, updates, and recommended fixes for the 2003-2008 Infiniti FX45.
Infiniti FX45 HVAC Parts Catalog
Coming SoonComprehensive catalog of OEM HVAC parts, including compressors, condensers, and filters for the 2003-2008 Infiniti FX45.
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Technical Information
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