BMW 850i 2018-present HVAC Specifications
Detailed technical specifications for the HVAC system in the 2018-Present BMW 850I, including component details, performance metrics, and troubleshooting tips.
Overview Specifications
Comprehensive description of the HVAC specifications for the 2018-Present BMW 850i, including key features, measurements, and technical details.
How to Use
Use the search function to locate specific HVAC specifications by entering keywords such as 'cooling capacity', 'heating output', or 'refrigerant type'.
Navigate through the HVAC documentation sections using the table of contents or by scrolling through the document. Each section is labeled with a clear title for easy reference.
Key Specifications
Cooling Capacity
5.2 kW at 35°C
Heating Output
6.5 kW at 85°C
Airflow Volume
650 m³/h
Refrigerant Type
R1234yf
Filter Efficiency
99.97% for PM2.5
Available Specifications
Climate Control System
Details about the advanced climate control system in the BMW 850i, including its components and functionality.
Climate Control System
Details about the advanced climate control system in the BMW 850i, including its components and functionality.
Automatic Climate Control
- 4-zone automatic climate control system
- Temperature range: 60°F to 85°F (15.5°C to 29.5°C)
- Includes humidity and air quality sensors
- Automatic air recirculation mode
- Individual temperature settings for driver, front passenger, and rear passengers
Air Distribution
- Multi-directional air vents for precise airflow control
- Airflow volume: up to 650 m³/h
- Adjustable vent intensity and direction
- Includes footwell and windshield defrost vents
- Automatic air distribution based on ambient conditions
Note: The system adjusts airflow based on external temperature and sunlight intensity.
Heating and Cooling Performance
Technical specifications and performance metrics for the heating and cooling systems.
Heating and Cooling Performance
Technical specifications and performance metrics for the heating and cooling systems.
Heating System
- Heating output: 6.5 kW at 85°C coolant temperature
- Heating element: PTC (Positive Temperature Coefficient) heater
- Rapid cabin warm-up in cold conditions
- Integrated seat heating with 3-level adjustment
- Steering wheel heating option
Cooling System
- Cooling capacity: 5.2 kW at 35°C ambient temperature
- Refrigerant type: R1234yf (low global warming potential)
- Compressor type: Variable displacement
- Evaporator temperature range: 2°C to 10°C
- Includes rear-seat cooling vents
Note: The cooling system is designed for energy efficiency and reduced environmental impact.
Air Filtration and Quality
Information about the air filtration system and its impact on cabin air quality.
Air Filtration and Quality
Information about the air filtration system and its impact on cabin air quality.
Air Filtration System
- Dual-layer microfilter with activated carbon
- Particle filtration efficiency: 99.97% for PM2.5
- Odor and allergen reduction capabilities
- Filter replacement interval: 15,000 miles or 12 months
- Includes ionizer for air purification
Air Quality Management
- Automatic air recirculation during high pollution levels
- CO2 and NOx sensors for air quality monitoring
- Real-time air quality display on iDrive system
- Integrated fragrance system with 3 scent options
- Automatic activation of air purification in polluted areas
Note: The system can detect and respond to external pollutants automatically.
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Component Specifications
General Specifications
- System Type
- Automatic Climate Control with Dual-Zone Temperature Adjustment
- Refrigerant Type
- R-1234yf
- Refrigerant Capacity
- 500 ± 20 g
- Compressor Type
- Variable Displacement
- Blower Motor Power
- 200 W
- Airflow Capacity
- 1200 m³/h
Temperature Control
- Temperature Range
- 16°C to 28°C
- Temperature Resolution
- 0.5°C
- Dual Zone Difference Limit
- 4°C
- Sensor Accuracy
- ±0.5°C
Air Distribution
- Vent Modes
-
- Face
- Foot
- Defrost
- Auto
- Airflow Direction Adjustment
- 8-way adjustable
- Recirculation Mode
- Automatic and Manual
- Recirculation Actuator Response Time
- 2 seconds
Filtration System
- Filter Type
- Microfilter with Activated Carbon
- Filter Part Number
- 64 31 9 388 123
- Filter Replacement interval
- 15,000 miles or 12 months
- Filter Efficiency
- 95% for particles > 0.3 µm
Heating System
- Heater Core Material
- Aluminum
- Heater Core Capacity
- 5.5 kW
- Coolant Flow Rate
- 12 L/min
- Heater Valve Part Number
- 64 11 9 388 456
Cooling System
- Evaporator Material
- Aluminum
- Evaporator Capacity
- 4.2 kW
- Condenser Material
- Aluminum
- Condenser Part Number
- 64 51 9 388 789
- Expansion Valve Type
- Thermostatic
Compressor Specifications
- Compressor Part Number
- 64 52 9 388 321
- Displacement Volume
- 120 cc
- Maximum Rpm
- 8000 rpm
- Oil Type
- PAG 46
- Oil Capacity
- 150 ± 10 ml
Electrical Specifications
- System Voltage
- 12 V DC
- Blower Motor Current
- 16.7 A
- Compressor Clutch Power
- 60 W
- Control Module Part Number
- 64 11 9 388 654
Diagnostic Specifications
- Diagnostic interface
- OBD-II
- Fault Code Storage
- Up to 20 codes
- Sensor Monitoring
-
- Temperature
- Pressure
- Humidity
- Self Diagnosis interval
- Every ignition cycle
Maintenance Specifications
- Refrigerant Recharge interval
- Every 2 years or 24,000 miles
- System Leak Test interval
- Every 2 years
- Blower Motor inspection Interval
- Every 30,000 miles
- Compressor Belt Tension
- 500 ± 50 N
Service Information Service
Detailed service requirements and schedules for the HVAC system
- Replace microfilter
- Inspect blower motor
- Check refrigerant level
Ensure proper disposal of old refrigerant
- Inspect compressor belt
- Check system for leaks
- Test all HVAC sensors
Use only BMW-approved refrigerant
- Replace refrigerant
- Inspect heater core
- Check condenser for debris
Perform system pressure test
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What is the refrigerant type and capacity for the HVAC system in the 2018-Present BMW 850i?
What is the refrigerant type and capacity for the HVAC system in the 2018-Present BMW 850i?
The HVAC system in the 2018-Present BMW 850i uses R-1234yf refrigerant, with a total system capacity of approximately 525 grams (± 25 grams). This refrigerant is environmentally friendly and complies with current EU regulations.
Q2 How does the 4-zone automatic climate control system work in the BMW 850i?
How does the 4-zone automatic climate control system work in the BMW 850i?
The 4-zone automatic climate control system allows individual temperature settings for the driver, front passenger, and rear passengers. It uses multiple sensors to monitor cabin temperature, humidity, and sunlight intensity, adjusting airflow and temperature distribution automatically. The system also includes a microfilter to improve air quality.
Q3 What is the recommended maintenance interval for the HVAC system in the BMW 850i?
What is the recommended maintenance interval for the HVAC system in the BMW 850i?
BMW recommends inspecting the HVAC system every 20,000 miles or 24 months, whichever comes first. This includes checking refrigerant levels, inspecting the compressor and condenser, and replacing the cabin microfilter. Regular maintenance ensures optimal performance and prevents system failures.
Q4 Can the HVAC system be serviced without specialized tools?
Can the HVAC system be serviced without specialized tools?
No, servicing the HVAC system in the BMW 850i requires specialized tools, including a refrigerant recovery machine, manifold gauge set, and diagnostic software (ISTA/D). Improper servicing can lead to system damage, refrigerant leaks, or voided warranties.
Q5 What are the common symptoms of a failing HVAC compressor in the BMW 850i?
What are the common symptoms of a failing HVAC compressor in the BMW 850i?
Common symptoms include reduced cooling performance, unusual noises (such as grinding or squealing), refrigerant leaks, and the A/C clutch not engaging. If any of these symptoms occur, the vehicle should be inspected by a certified BMW technician immediately.
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 HVAC System Overview
Coming SoonDetailed technical overview of the HVAC system in the 2018-Present BMW 850i, including component locations and system operation.
Refrigerant Handling and Safety Guide
Coming SoonStep-by-step guide for safely handling R-1234yf refrigerant, including safety precautions and proper disposal methods.
HVAC Diagnostic Trouble Codes (DTCs)
Coming SoonComprehensive list of HVAC-related diagnostic trouble codes for the BMW 850i, including troubleshooting steps and repair procedures.
Cabin Microfilter Replacement Guide
Coming SoonInstructions for replacing the cabin microfilter in the BMW 850i, including part numbers and recommended tools.
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