BMW X4 2014-2018 HVAC Specifications
Detailed technical specifications and operational guide for the HVAC system in the 2014-2018 BMW X4. Includes component details, refrigerant types, control mechanisms, and diagnostic procedures.
Overview Specifications
Comprehensive description of the HVAC specifications for the 2014-2018 BMW X4, including key features, measurements, and technical details. This section provides detailed insights into the heating, ventilation, and air conditioning system, ensuring optimal performance and comfort.
How to Use
Use the search function to locate specific HVAC specifications by entering keywords such as 'blower motor', 'refrigerant capacity', or 'temperature control'.
Navigate through the HVAC documentation sections using the table of contents or by scrolling through the document. Each major section is clearly labeled for easy access.
Key Specifications
Refrigerant Capacity
600 grams
Blower Motor Power
150W
Heater Core Output
5.5 kW
Airflow Capacity
450 CFM
Temperature Range
60°F to 84°F
Available Specifications
Climate Control System
This section covers the automatic climate control system, including its components, functionality, and technical specifications.
Climate Control System
This section covers the automatic climate control system, including its components, functionality, and technical specifications.
Automatic Temperature Control
- Dual-zone automatic climate control system
- Temperature range: 60°F to 84°F (15.5°C to 28.8°C)
- Precision control with 0.5°F (0.3°C) increments
- Integrated solar sensor for automatic adjustment
- Air distribution control via 8-speed fan
Air Quality System
- Automatic air recirculation with activated carbon filter
- Particulate filter efficiency: 99.9% for PM2.5 particles
- Ionizer for air purification
- Automatic activation based on external air quality
- Filter replacement interval: 15,000 miles or 12 months
Note: The air quality system is designed to enhance cabin comfort by reducing allergens and pollutants.
Heating and Cooling Components
Detailed information on the heating and cooling components, including the heater core, evaporator, and refrigerant system.
Heating and Cooling Components
Detailed information on the heating and cooling components, including the heater core, evaporator, and refrigerant system.
Heater Core Specifications
- Material: Aluminum with copper fins
- Heat output: 5.5 kW at 90°C coolant temperature
- Core dimensions: 200mm x 150mm x 40mm
- Flow rate: 12 liters per minute
- Operating pressure: 1.5 bar
Refrigerant System
- Refrigerant type: R134a
- Refrigerant capacity: 600 grams
- Compressor type: Variable displacement
- Evaporator temperature range: 2°C to 10°C
- Condenser pressure: 12-15 bar
Note: Ensure proper refrigerant levels for optimal cooling performance.
Ventilation System
This section provides details on the ventilation system, including airflow distribution, blower motor, and ductwork.
Ventilation System
This section provides details on the ventilation system, including airflow distribution, blower motor, and ductwork.
Blower Motor Specifications
- Motor type: Brushless DC
- Power rating: 150W
- Airflow capacity: 450 cubic feet per minute (CFM)
- Speed control: 8-speed electronic
- Noise level: < 45 dB at maximum speed
Airflow Distribution
- Dual-zone airflow control
- Adjustable vents with 360° rotation
- Rear seat ventilation ducts
- Defrost mode airflow: 300 CFM
- Footwell airflow: 200 CFM
Note: Airflow distribution can be manually adjusted or set to automatic mode for optimal comfort.
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Component Specifications
General Specifications
- System Type
- Automatic Climate Control
- Refrigerant Type
- R134a
- Refrigerant Capacity
- 525 ± 25 g
- Compressor Type
- Variable Displacement
- Blower Motor Power
- 200 W
- Air Flow Rate Max
- 12.5 m³/min
Temperature Control
- Temperature Range
- 16°C to 32°C
- Temperature Resolution
- 0.5°C
- Sensor Accuracy
- ±1°C
- Auto Mode Response Time
- 5-10 minutes
Air Distribution
- Vent Modes
-
- Face
- Foot
- Defrost
- Auto
- Airflow Direction Adjustment
- Manual and Automatic
- Defrost Time
- 3-5 minutes at max airflow
Filters
- Cabin Air Filter Type
- Particulate and Activated Carbon
- Cabin Air Filter Part Number
- 64 31 9 362 123
- Replacement interval
- 15,000 miles or 12 months
- Filter Efficiency
- 95% for particles > 0.3 µm
Compressor Specifications
- Compressor Part Number
- 64 51 9 362 456
- Displacement Volume
- 160 cc
- Oil Type
- PAG 46
- Oil Capacity
- 150 ± 10 ml
- Operating Pressure Range
- 1.5 to 3.5 MPa
Condenser Specifications
- Condenser Part Number
- 64 51 9 362 789
- Material
- Aluminum
- Surface Area
- 0.45 m²
- Pressure Limit
- 4.0 MPa
Evaporator Specifications
- Evaporator Part Number
- 64 51 9 362 321
- Material
- Aluminum
- Surface Area
- 0.35 m²
- Pressure Limit
- 3.5 MPa
Blower Motor Specifications
- Blower Motor Part Number
- 64 11 9 362 654
- Voltage
- 12 V
- Current Draw Max
- 16.7 A
- Speed Control
- PWM (Pulse Width Modulation)
Diagnostic Specifications
- Diagnostic Tool
- BMW ISTA
- Fault Codes
-
- IHKA-1
- IHKA-2
- IHKA-3
- Self Diagnosis Capability
- Yes
- Error Code Storage
- Up to 20 codes
Operational Limits
- Ambient Temperature Range
- -30°C to 50°C
- Max System Pressure
- 4.5 MPa
- Min System Pressure
- 0.2 MPa
- Compressor Shutdown Temperature
- 120°C
Service Information Service
Detailed service requirements and schedules for the HVAC system
- Inspect cabin air filter
- Check refrigerant level
- Inspect compressor belt
Replace cabin air filter if necessary
- Replace cabin air filter
- Inspect condenser for debris
- Check blower motor operation
Perform system pressure test
- Replace refrigerant
- Inspect evaporator for leaks
- Check all electrical connections
Use only BMW-approved refrigerant
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What is the refrigerant type and capacity for the 2014-2018 BMW X4 HVAC system?
What is the refrigerant type and capacity for the 2014-2018 BMW X4 HVAC system?
The 2014-2018 BMW X4 HVAC system uses R134a refrigerant. The total system capacity is approximately 525 grams (18.5 ounces). Always refer to the vehicle's under-hood label for exact specifications.
Q2 How do I reset the HVAC system after replacing the battery or performing maintenance?
How do I reset the HVAC system after replacing the battery or performing maintenance?
To reset the HVAC system, turn the ignition to the ON position without starting the engine. Set the temperature to maximum heat and fan speed to high. Hold the AC and recirculation buttons simultaneously for 10 seconds. The system will reset and recalibrate.
Q3 What is the recommended interval for replacing the cabin air filter in the BMW X4?
What is the recommended interval for replacing the cabin air filter in the BMW X4?
The cabin air filter should be inspected every 15,000 miles and replaced every 30,000 miles or as needed, depending on driving conditions. A clogged filter can reduce HVAC efficiency and airflow.
Q4 How does the automatic climate control system work in the BMW X4?
How does the automatic climate control system work in the BMW X4?
The automatic climate control system uses sensors to monitor cabin temperature, sunlight intensity, and humidity. It adjusts fan speed, air distribution, and temperature to maintain the desired comfort level. The system also includes a microfilter to improve air quality.
Q5 What are the common symptoms of a failing HVAC blower motor in the BMW X4?
What are the common symptoms of a failing HVAC blower motor in the BMW X4?
Common symptoms include reduced airflow, unusual noises (whining or grinding), intermittent operation, or complete failure of the blower motor. If these issues occur, inspect the blower motor resistor and wiring before replacing the motor.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
BMW X4 HVAC System Service Manual
Coming SoonOfficial service manual for the 2014-2018 BMW X4 HVAC system, including diagnostic procedures, component locations, and repair instructions.
Refrigerant Handling and Safety Guide
Coming SoonComprehensive guide on handling R134a refrigerant safely, including proper charging procedures and environmental regulations.
Cabin Air Filter Replacement Tutorial
Coming SoonStep-by-step video tutorial for replacing the cabin air filter in the 2014-2018 BMW X4, including tools required and tips for easier access.
BMW HVAC System Diagnostics
Coming SoonTechnical guide for diagnosing common HVAC issues in BMW vehicles, including fault code retrieval and troubleshooting steps.
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