BMW X1 2015-2021 HVAC Specifications
Detailed technical specifications and operational guide for the HVAC system in the 2015-2021 BMW X1. Includes component details, refrigerant specifications, and diagnostic procedures.
Overview Specifications
Comprehensive description of the HVAC specifications for the 2015-2021 BMW X1, including key features, measurements, and technical details.
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 section is clearly labeled for easy access.
Key Specifications
Refrigerant Capacity
525 ± 25 g
Heating Capacity
5.5 kW
Cooling Capacity
4.2 kW
Blower Motor Power
200 W
Airflow Capacity
450 m³/h
Available Specifications
HVAC System Overview
This section provides an overview of the HVAC system, including its components, functionality, and key features.
HVAC System Overview
This section provides an overview of the HVAC system, including its components, functionality, and key features.
System Components
- Dual-zone automatic climate control system
- Electrically driven compressor for efficient cooling
- High-capacity blower motor with variable speed control
- Integrated air quality sensor for automatic recirculation
Functionality
- Automatic temperature control with dual-zone settings
- Heating capacity of up to 5.5 kW for rapid cabin warming
- Cooling capacity of 4.2 kW for efficient climate control
- Air distribution through 12 adjustable vents
Note: The system is designed to maintain optimal cabin comfort in all weather conditions.
Refrigerant System
This section covers the refrigerant system, including specifications, capacity, and maintenance details.
Refrigerant System
This section covers the refrigerant system, including specifications, capacity, and maintenance details.
Refrigerant Type and Capacity
- Uses R1234yf refrigerant for environmental compliance
- Total refrigerant capacity: 525 ± 25 g
- Refrigerant pressure range: 1.5 - 3.5 MPa
- Refrigerant oil type: PAG (Polyalkylene Glycol)
Maintenance and Safety
- Recommended refrigerant recharge interval: 2 years or 30,000 miles
- System leak detection threshold: 7 g/year
- High-pressure cutoff switch at 4.2 MPa
- Low-pressure cutoff switch at 0.15 MPa
Note: Always use BMW-approved refrigerant and equipment for servicing.
Heating and Ventilation
This section details the heating and ventilation components, including performance metrics and specifications.
Heating and Ventilation
This section details the heating and ventilation components, including performance metrics and specifications.
Heating System
- Heater core capacity: 2.8 liters
- Maximum coolant flow rate: 12 L/min
- Heating element power: 1.2 kW
- Temperature range: 15°C to 38°C
Ventilation System
- Blower motor power: 200 W
- Airflow capacity: 450 m³/h
- Filter type: Activated carbon with particulate filtration
- Filter replacement interval: 15,000 miles or 12 months
Note: The ventilation system includes a pollen filter for improved air quality.
Control and Sensors
This section covers the control mechanisms and sensors used in the HVAC system.
Control and Sensors
This section covers the control mechanisms and sensors used in the HVAC system.
Control Interface
- Touchscreen control panel with dual-zone settings
- Voice command compatibility for hands-free operation
- Steering wheel-mounted controls for temperature adjustment
- Automatic mode with ambient light sensor integration
Sensors
- Interior temperature sensor accuracy: ±0.5°C
- Exterior temperature sensor range: -40°C to 60°C
- Humidity sensor for automatic defogging
- Solar sensor for adaptive climate control
Note: Sensors are calibrated for precise climate control adjustments.
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Component Specifications
General Specifications
- System Type
- Automatic Climate Control
- Refrigerant Type
- R1234yf
- Refrigerant Capacity
- 500 ± 20 g
- Compressor Type
- Variable Displacement
- Blower Motor Type
- Brushless DC Motor
- Air Filter Type
- Cabin Microfilter with Activated Carbon
Temperature Control
- Temperature Range
- 16°C to 30°C
- Temperature Resolution
- 0.5°C
- Dual Zone Control
- true
- Rear Seat Control
- false
- Auto Mode Response Time
- 2-3 minutes
Airflow Specifications
- Blower Motor Power
- 200 W
- Max Airflow Rate
- 600 m³/h
- Airflow Direction Control
-
- Face
- Footwell
- Windshield
- Combination
- Recirculation Mode
- Automatic and Manual
- Recirculation Motor Power
- 15 W
Heating System
- Heater Core Type
- Aluminum
- Heater Core Capacity
- 5.5 kW
- Auxiliary Heater
- Electric PTC Heater
- Auxiliary Heater Power
- 1.5 kW
- Coolant Flow Rate
- 10 L/min
Cooling System
- Evaporator Type
- Plate and Fin
- Evaporator Capacity
- 3.5 kW
- Condenser Type
- Parallel Flow
- Condenser Capacity
- 4.2 kW
- Compressor Oil Type
- PAG 46
- Compressor Oil Capacity
- 120 ± 10 ml
Electrical Specifications
- System Voltage
- 12 V DC
- Fuse Rating
- 40 A
- Control Module Part Number
- 64 11 9 250 123
- Blower Motor Resistor Part Number
- 64 11 9 250 456
- Temperature Sensor Part Number
- 64 11 9 250 789
Maintenance Specifications
- Cabin Filter Replacement Interval
- 15,000 miles or 12 months
- Refrigerant Check interval
- 30,000 miles or 24 months
- Compressor Belt Tension
- 500 ± 50 N
- System Leak Test Pressure
- 20 bar
- Lubrication Points
-
- Compressor Shaft
- Blower Motor Bearings
Diagnostic Specifications
- Fault Code Readout
- OBD-II Compatible
- Common Fault Codes
-
- B1234 - Blower Motor Circuit
- B5678 - Temperature Sensor Malfunction
- B9101 - Refrigerant Pressure Low
- Diagnostic Tool
- BMW ISTA+
- System Pressure Test
- High: 15-20 bar, Low: 2-3 bar
- Sensor Tolerances
- ± 0.5°C
Safety Specifications
- High Pressure Cutoff
- 30 bar
- Low Pressure Cutoff
- 1.5 bar
- Overheat Protection
- 95°C
- Electrical Short Circuit Protection
- Integrated in Control Module
- Refrigerant Leak Detection
- Automatic Shutdown
Cross References
- Related Components
-
- Engine Cooling System
- Battery Management System
- Body Control Module
- Shared Control Modules
-
- IHKA Control Unit
- DME Engine Control Unit
- interfaces
-
- CAN Bus
- LIN Bus
Service Information Service
Detailed service requirements and schedules for the HVAC system
- Replace Cabin Air Filter
- Inspect Refrigerant Levels
- Check Blower Motor Operation
Ensure proper disposal of old refrigerant
- Perform System Leak Test
- Inspect Compressor Belt Tension
- Check Electrical Connections
Use BMW-approved diagnostic tools
- Replace Refrigerant
- Inspect Evaporator and Condenser
- Lubricate Moving Parts
Follow BMW refrigerant handling guidelines
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What is the refrigerant type and capacity for the 2015-2021 BMW X1 HVAC system?
What is the refrigerant type and capacity for the 2015-2021 BMW X1 HVAC system?
The 2015-2021 BMW X1 HVAC system uses R-1234yf refrigerant, with a total system capacity of approximately 525 grams (18.5 ounces). Always ensure the refrigerant is handled by a certified technician due to its environmental and safety regulations.
Q2 How do I reset the HVAC system in my BMW X1?
How do I reset the HVAC system in my BMW X1?
To reset the HVAC system, turn the ignition to the ON position (do not start the engine). Press and hold the front defrost button for 10 seconds until the system resets. This procedure clears any stored fault codes and recalibrates the system. Refer to the owner's manual for specific instructions.
Q3 What is the recommended maintenance interval for the cabin air filter in the BMW X1?
What is the recommended maintenance interval for the cabin air filter in the BMW X1?
The cabin air filter in the 2015-2021 BMW X1 should be inspected every 15,000 miles (24,000 km) and replaced every 30,000 miles (48,000 km) or as needed based on driving conditions. A clogged filter can reduce HVAC efficiency and air quality.
Q4 What are the common symptoms of a failing HVAC blower motor in the BMW X1?
What are the common symptoms of a failing HVAC blower motor in the BMW X1?
Common symptoms include unusual noises (whining or grinding), reduced airflow, or complete failure of the blower motor. The blower motor resistor may also fail, causing the fan to operate only at certain speeds. Replacement requires disassembly of the dashboard and should be performed by a professional.
Q5 How does the automatic climate control system work in the BMW X1?
How does the automatic climate control system work in the BMW X1?
The automatic climate control system uses sensors to monitor cabin temperature, sunlight intensity, and humidity. It adjusts the fan speed, air distribution, and temperature to maintain the desired comfort level. The system also includes a microfilter to improve air quality.
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 X1 HVAC System Overview
Coming SoonA detailed guide to the HVAC system components, operation, and maintenance for the 2015-2021 BMW X1.
Refrigerant Handling and Safety Guidelines
Coming SoonLearn about the proper handling, storage, and disposal of R-1234yf refrigerant, including safety precautions and environmental regulations.
Cabin Air Filter Replacement Procedure
Coming SoonStep-by-step instructions for replacing the cabin air filter in the 2015-2021 BMW X1, including tools required and safety tips.
Diagnosing HVAC Blower Motor Issues
Coming SoonA troubleshooting guide for identifying and resolving common blower motor problems in the BMW X1 HVAC system.
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