BMW Z4 2018-present HVAC Specifications
Detailed technical specifications and performance metrics for the HVAC system in the 2018-Present BMW Z4. Includes component details, refrigerant types, and troubleshooting tips.
Overview Specifications
Comprehensive description of the HVAC specifications for the 2018-Present BMW Z4, 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 the sidebar menu. Each section is labeled for easy access to specific components and technical details.
Key Specifications
Refrigerant Capacity
18.5 oz (525 g)
Heater Core Output
5.5 kW at 194°F (90°C)
Blower Motor Airflow
350 CFM
Temperature Range
60°F to 90°F (15.5°C to 32.2°C)
Filter Efficiency
99.7% for particles > 0.3 microns
Available Specifications
Climate Control System
Details about the automatic climate control system, including its components, functionality, and performance metrics.
Climate Control System
Details about the automatic climate control system, including its components, functionality, and performance metrics.
Automatic Temperature Control
- Dual-zone automatic climate control system
- Temperature range: 60°F to 90°F (15.5°C to 32.2°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
- Active carbon microfilter for pollutant reduction
- Automatic air recirculation mode
- Filter replacement interval: 15,000 miles or 12 months
- Ionizer for improved air quality
- Filter efficiency: 99.7% for particles > 0.3 microns
Note: The air quality system is designed to enhance cabin comfort, especially in urban environments.
Heating and Cooling Components
Technical specifications and details about the heating and cooling components of the HVAC system.
Heating and Cooling Components
Technical specifications and details about the heating and cooling components of the HVAC system.
Heater Core
- High-efficiency aluminum heater core
- Heat output: 5.5 kW at 194°F (90°C)
- Coolant flow rate: 1.5 gallons per minute (5.7 liters per minute)
- Integrated temperature sensor for precise control
- Durability tested for 10,000 heating cycles
Evaporator and Condenser
- Evaporator capacity: 3.5 tons (12.3 kW)
- Condenser size: 18.5 x 12.5 inches (470 x 318 mm)
- Refrigerant type: R-1234yf
- Refrigerant capacity: 18.5 oz (525 g)
- Pressure range: 150-300 psi (10.3-20.7 bar)
Note: The refrigerant system is designed for optimal cooling performance while adhering to environmental regulations.
Ventilation System
Detailed information about the ventilation system, including airflow management and component specifications.
Ventilation System
Detailed information about the ventilation system, including airflow management and component specifications.
Blower Motor
- Brushless DC motor for reduced noise and increased efficiency
- Airflow capacity: 350 cubic feet per minute (CFM)
- Power consumption: 150 watts at maximum speed
- Speed control: 8 adjustable levels
- Noise level: < 45 dB at maximum speed
Air Distribution
- Multi-zone air distribution with 12 vents
- Adjustable vent direction for personalized comfort
- Rear footwell ventilation for passenger comfort
- Defrost system with integrated timer
- Airflow balance: 60% upper, 40% lower distribution
Note: The air distribution system ensures even airflow throughout the cabin for optimal comfort.
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Component Specifications
General Specifications
- System Type
- Automatic Dual-Zone Climate Control
- Refrigerant Type
- R1234yf
- Refrigerant Capacity
- 500 ± 20 g
- Compressor Type
- Variable Displacement
- Blower Motor Power
- 200 W
Airflow Specifications
- Max Airflow Volume
- 1200 m³/h
- Airflow Direction Control
-
- Face
- Foot
- Defrost
- Combination
- Air Distribution Tolerance
- ± 5%
- Recirculation Mode Flow Rate
- 800 m³/h
Temperature Control
- Temperature Range
- 16°C to 30°C
- Temperature Resolution
- 0.5°C
- Temperature Sensor Accuracy
- ± 1°C
- Dual Zone Differential Limit
- 4°C
Heating System
- Heater Core Type
- Aluminum
- Heater Core Flow Rate
- 8 L/min
- Max Heating Capacity
- 6 kW
- Coolant Temperature Requirement
- 80°C to 105°C
Cooling System
- Evaporator Type
- Plate-Fin
- Evaporator Capacity
- 3.5 kW
- Condenser Type
- Parallel Flow
- Condenser Capacity
- 4.2 kW
- Expansion Valve Type
- Thermostatic
Filters
- Cabin Air Filter Type
- Combination Particle and Activated Carbon
- Cabin Air Filter Part Number
- 64 31 9 255 789
- Filter Replacement interval
- 15,000 miles or 12 months
- Filter Efficiency
- 95% for particles > 0.3 µm
Electrical Specifications
- System Voltage
- 12 V DC
- Compressor Clutch Power
- 60 W
- Blower Motor Current
- 16 A
- Control Module Part Number
- 64 11 9 255 123
Operational Parameters
- Compressor Pressure Range
- 1.5 to 3.5 MPa
- Evaporator Temperature Range
- 2°C to 10°C
- Condenser Temperature Range
- 50°C to 70°C
- System Shutdown Temperature
- 120°C
Diagnostic Specifications
- Diagnostic Trouble Codes
-
- P0532
- P0533
- P0534
- B1234
- Diagnostic interface
- OBD-II
- Self Diagnosis interval
- Every ignition cycle
- Fault Code Storage
- Up to 20 codes
Maintenance Specifications
- Refrigerant Recharge interval
- Every 2 years or 30,000 miles
- System Leak Check interval
- Annually
- Lubricant Type
- PAG Oil
- Lubricant Quantity
- 150 ± 10 ml
- Belt Tension Specification
- 500 ± 50 N
Service Information Service
Detailed service requirements and schedules for the HVAC system
- Inspect and replace cabin air filter
- Check refrigerant level
- Inspect compressor belt tension
Use only BMW-approved refrigerant and lubricants
- Perform system leak check
- Recharge refrigerant if necessary
- Inspect electrical connections
Ensure all connections are secure and free of corrosion
- Replace compressor clutch if worn
- Inspect and clean evaporator and condenser coils
- Check blower motor operation
Replace any worn or damaged components with genuine BMW parts
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What is the refrigerant type and capacity for the 2018-Present BMW Z4 HVAC system?
What is the refrigerant type and capacity for the 2018-Present BMW Z4 HVAC system?
The HVAC system in the 2018-Present BMW Z4 uses R1234yf refrigerant, with a total system capacity of approximately 500-550 grams. This refrigerant is environmentally friendly and complies with EU regulations.
Q2 How does the automatic climate control system work in the BMW Z4?
How does the automatic climate control system work in the BMW Z4?
The automatic climate control system in the BMW Z4 uses a combination of sensors, including interior temperature sensors, sunlight sensors, and humidity sensors, to maintain the desired cabin temperature. The system adjusts airflow, temperature, and fan speed automatically based on these inputs and user settings.
Q3 What is the recommended service interval for the HVAC system in the BMW Z4?
What is the recommended service interval for the HVAC system in the BMW Z4?
BMW recommends inspecting the HVAC system every 30,000 miles or 3 years, whichever comes first. This includes checking refrigerant levels, inspecting the compressor, and ensuring all components are functioning correctly. Regular cabin air filter replacement is also advised every 15,000-20,000 miles.
Q4 Can I retrofit the HVAC system in my BMW Z4 to support newer refrigerants?
Can I retrofit the HVAC system in my BMW Z4 to support newer refrigerants?
No, the HVAC system in the 2018-Present BMW Z4 is specifically designed for R1234yf refrigerant. Retrofitting to other refrigerants is not recommended and may void the vehicle's warranty. Always use the specified refrigerant to ensure proper system performance and compliance with environmental regulations.
Q5 What are the common symptoms of a failing HVAC compressor in the BMW Z4?
What are the common symptoms of a failing HVAC compressor in the BMW Z4?
Common symptoms of a failing HVAC compressor include reduced cooling performance, unusual noises (such as grinding or squealing), and the compressor clutch not engaging. If you experience any of these issues, it is recommended to have the system inspected by a certified BMW technician.
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 Z4 HVAC System Overview
Coming SoonA detailed guide covering the components, operation, and maintenance of the HVAC system in the 2018-Present BMW Z4.
Refrigerant Handling and Safety Guidelines
Coming SoonLearn about the proper handling, storage, and disposal of R1234yf refrigerant, including safety precautions and environmental considerations.
BMW Z4 Cabin Air Filter Replacement Guide
Coming SoonStep-by-step instructions for replacing the cabin air filter in the 2018-Present BMW Z4, including tools required and safety tips.
Diagnosing HVAC System Issues in BMW Z4
Coming SoonA troubleshooting guide for common HVAC system problems in the BMW Z4, including diagnostic codes and repair recommendations.
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