BMW 840i 2018-present HVAC Specifications
Detailed technical specifications and documentation for the HVAC system in the 2018-Present BMW 840i. Includes system components, operational parameters, and troubleshooting guidelines.
Overview Specifications
Comprehensive description of the HVAC specifications for the 2018-Present BMW 840I, 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 'cooling capacity', 'blower motor', or 'refrigerant type'.
Navigate through the HVAC documentation sections using the table of contents or by scrolling through the major sections and subsections.
Key Specifications
Cooling Capacity
6.5 kW (22,200 BTU/h)
Heating Capacity
7.2 kW (24,600 BTU/h)
Refrigerant Type
R1234yf
Airflow Capacity
1,200 m³/h
Filter Efficiency
99.97% at 0.3 microns
Available Specifications
HVAC System Overview
This section provides an overview of the HVAC system, including its components, functionality, and integration with the vehicle's electronics.
HVAC System Overview
This section provides an overview of the HVAC system, including its components, functionality, and integration with the vehicle's electronics.
System Components
- Dual-zone automatic climate control system
- High-performance blower motor with variable speed control
- Integrated air quality sensor for automatic recirculation
- Electronically controlled refrigerant compressor
- Heated and ventilated front seats with 3-stage settings
System Integration
- Fully integrated with iDrive 7.0 infotainment system
- Automatic temperature adjustment based on GPS and weather data
- Remote climate control via BMW ConnectedDrive app
- Energy-efficient operation with ECO PRO mode
- Seamless integration with the vehicle's CAN bus system
Note: The HVAC system is designed to work in harmony with the vehicle's advanced electronics for optimal performance.
Cooling and Heating Performance
This section details the cooling and heating capabilities of the HVAC system, including performance metrics and technical specifications.
Cooling and Heating Performance
This section details the cooling and heating capabilities of the HVAC system, including performance metrics and technical specifications.
Cooling Capacity
- Maximum cooling capacity: 6.5 kW (22,200 BTU/h)
- Refrigerant type: R1234yf
- Refrigerant charge: 550 ± 25 g
- Evaporator temperature range: 2°C to 10°C
- Compressor displacement: 120 cc
Heating Capacity
- Maximum heating capacity: 7.2 kW (24,600 BTU/h)
- Electric auxiliary heater with 1.5 kW output
- Heater core temperature range: 60°C to 90°C
- Heat exchanger efficiency: 85%
- Integrated PTC heater for rapid cabin warming
Note: The heating system is optimized for quick warm-up times in cold weather conditions.
Air Distribution and Filtration
This section covers the air distribution and filtration system, including airflow rates, filter specifications, and air quality management.
Air Distribution and Filtration
This section covers the air distribution and filtration system, including airflow rates, filter specifications, and air quality management.
Airflow Management
- Total airflow capacity: 1,200 m³/h
- Adjustable air vents with 4-way directional control
- Automatic air distribution based on cabin temperature
- Rear-seat ventilation with independent controls
- Defrost system with rapid windshield clearing
Air Filtration
- High-efficiency particulate air (HEPA) filter
- Activated carbon filter for odor reduction
- Filter replacement interval: 15,000 miles or 12 months
- Filter efficiency: 99.97% at 0.3 microns
- Automatic air recirculation based on external air quality
Note: The HEPA filter ensures superior air quality, especially in urban environments.
Energy Efficiency and Environmental Impact
This section highlights the energy efficiency and environmental considerations of the HVAC system, including compliance with regulations and eco-friendly features.
Energy Efficiency and Environmental Impact
This section highlights the energy efficiency and environmental considerations of the HVAC system, including compliance with regulations and eco-friendly features.
Energy Efficiency
- Energy-efficient compressor with variable displacement
- ECO PRO mode reduces HVAC energy consumption by up to 20%
- Automatic start-stop function for the compressor
- Low-power consumption blower motor: 150 W max
- Thermal insulation for reduced heat loss
Environmental Compliance
- Compliant with EU Directive 2006/40/EC
- Uses R1234yf refrigerant with a GWP of 1
- Recyclable components for reduced environmental impact
- Low CO2 emissions during operation
- Designed for easy disassembly and recycling
Note: The HVAC system meets stringent environmental standards while maintaining high performance.
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Component Specifications
General Specifications
- System Type
- Automatic Climate Control with Dual-Zone Temperature Regulation
- Refrigerant Type
- R1234yf
- 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
- Sensor Accuracy
- ±0.5°C
- Dual Zone Differential
- Up to 4°C
Air Distribution
- Vent Modes
-
- Face
- Foot
- Defrost
- Auto
- Airflow Direction Adjustment
- 8-way adjustable
- Rear Seat Ventilation
- Optional
- Rear Seat Heating
- Optional
Filtration System
- Filter Type
- Microfilter with Activated Charcoal
- Filter Part Number
- 64 31 9 388 123
- Filter Replacement interval
- Every 15,000 miles or 12 months
- Filter Efficiency
- 95% for particles > 0.3 µm
Heating System
- Heater Core Type
- Aluminum
- Heater Core Part Number
- 64 11 9 388 456
- Max Heating Output
- 6 kW
- Coolant Flow Rate
- 10 L/min
Cooling System
- Evaporator Type
- Plate-Fin
- Evaporator Part Number
- 64 51 9 388 789
- Cooling Capacity
- 4.5 kW
- Condenser Type
- Parallel Flow
- Condenser Part Number
- 64 51 9 388 101
Compressor Specifications
- Compressor Part Number
- 64 51 9 388 112
- Displacement Volume
- 120 cc
- Max Rpm
- 8000 rpm
- Oil Type
- PAG 46
- Oil Capacity
- 150 ± 10 ml
Electrical Specifications
- System Voltage
- 12 V DC
- Fuse Rating
- 40 A
- Blower Motor Current
- 16.7 A
- Compressor Clutch Current
- 3.5 A
Diagnostic Specifications
- Diagnostic interface
- OBD-II
- Fault Codes
-
- B1234
- B1235
- B1236
- Self Diagnosis interval
- Every ignition cycle
- Sensor Monitoring
-
- Temperature
- Pressure
- Humidity
Maintenance Specifications
- Refrigerant Recharge interval
- Every 2 years or 24,000 miles
- System Pressure Check interval
- Every 12 months
- 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 pressure
- Test temperature sensors
Use only BMW-approved refrigerant
- Replace refrigerant
- Inspect heater core
- Check condenser for debris
Perform system leak 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 840i?
What is the refrigerant type and capacity for the HVAC system in the 2018-Present BMW 840i?
The HVAC system in the 2018-Present BMW 840i 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 840i?
How does the automatic climate control system work in the BMW 840i?
The automatic climate control system in the BMW 840i uses a combination of sensors, including interior temperature sensors, sunlight sensors, and humidity sensors, to maintain a consistent and comfortable cabin environment. The system can adjust airflow, temperature, and fan speed automatically based on user settings and external conditions.
Q3 What is the power consumption of the HVAC system in the BMW 840i?
What is the power consumption of the HVAC system in the BMW 840i?
The HVAC system in the BMW 840i has a maximum power consumption of approximately 5 kW when operating at full capacity. This includes the power used by the compressor, blower motor, and auxiliary heating or cooling components.
Q4 How do I reset the HVAC system in the BMW 840i?
How do I reset the HVAC system in the BMW 840i?
To reset the HVAC system, turn the ignition to the ON position without starting the engine. Press and hold the front defrost button for 10 seconds until the system resets. This procedure clears any stored error codes and recalibrates the system.
Q5 What are the recommended maintenance intervals for the HVAC system in the BMW 840i?
What are the recommended maintenance intervals for the HVAC system in the BMW 840i?
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 air filter every 15,000 miles or 12 months.
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 SoonA detailed guide to the HVAC system in the 2018-Present BMW 840i, including component locations, system operation, and troubleshooting tips.
Refrigerant Handling and Safety
Coming SoonLearn about the proper handling, storage, and disposal of R1234yf refrigerant used in the BMW 840i HVAC system, including safety precautions and environmental considerations.
Cabin Air Filter Replacement Guide
Coming SoonStep-by-step instructions for replacing the cabin air filter in the BMW 840i, including tools required and recommended replacement intervals.
HVAC System Diagnostics and Error Codes
Coming SoonA comprehensive list of common HVAC system error codes for the BMW 840i, along with diagnostic procedures and troubleshooting steps.
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