BMW 335i 2005-2011 HVAC Specifications
Detailed technical specifications and operational insights for the HVAC system in the 2005-2011 BMW 335i. Includes component details, troubleshooting, and maintenance tips for the N54 and N55 engine models.
Overview Specifications
Comprehensive description of the HVAC specifications for the 2005-2011 BMW 335I, including key features, measurements, and technical details. This manual covers the heating, ventilation, and air conditioning system, providing detailed insights into its components, functionality, and maintenance requirements.
How to Use
Use the search function to locate specific HVAC specifications by entering keywords such as 'blower motor', 'refrigerant capacity', or 'temperature control'. Ensure to use exact terms for precise results.
Navigate through the HVAC documentation sections using the table of contents. Each section is labeled with major components and subsystems for easy access.
Key Specifications
Refrigerant Capacity
600 ± 20 g
Blower Motor Power
200 W
Heater Core Output
5.5 kW
Compressor Speed
8000 rpm
Airflow Capacity
450 m³/h
Available Specifications
HVAC System Overview
This section provides an overview of the HVAC system, including its major components, operational principles, and integration with the vehicle's electronics.
HVAC System Overview
This section provides an overview of the HVAC system, including its major components, operational principles, and integration with the vehicle's electronics.
System Components
- Dual-zone automatic climate control system
- Electrically driven compressor for efficient cooling
- High-capacity blower motor with variable speed control
- Integrated cabin air filter for improved air quality
- Refrigerant type: R134a
Operational Principles
- Automatic temperature regulation based on cabin sensors
- Dual-zone control allows independent temperature settings for driver and passenger
- Airflow distribution controlled via electronically actuated flaps
- System integrates with the vehicle's iDrive interface for user control
- Energy-saving mode reduces compressor load during low-demand conditions
Note: The system is designed to maintain optimal comfort while minimizing energy consumption.
Refrigerant System Specifications
Detailed specifications for the refrigerant system, including capacity, pressure limits, and component details.
Refrigerant System Specifications
Detailed specifications for the refrigerant system, including capacity, pressure limits, and component details.
Refrigerant Capacity and Pressure
- Total refrigerant capacity: 600 ± 20 g
- High-pressure side limit: 30 bar (435 psi)
- Low-pressure side limit: 2 bar (29 psi)
- Recommended refrigerant oil: PAG 46
- Refrigerant recovery and recharge procedures must follow BMW guidelines
Compressor Specifications
- Electrically driven variable displacement compressor
- Maximum operating speed: 8000 rpm
- Power consumption: 400 W at full load
- Integrated pressure sensor for system monitoring
- Compressor clutch engagement controlled by the HVAC control module
Note: Ensure proper refrigerant levels to prevent compressor damage.
Heating and Ventilation System
Technical details of the heating and ventilation components, including the heater core, blower motor, and air distribution system.
Heating and Ventilation System
Technical details of the heating and ventilation components, including the heater core, blower motor, and air distribution system.
Heater Core Specifications
- Heater core material: Aluminum
- Heat output: 5.5 kW at 90°C coolant temperature
- Coolant flow rate: 10 L/min
- Integrated temperature sensor for precise control
- Compatible with BMW-approved coolant mixtures
Blower Motor and Air Distribution
- Blower motor power rating: 200 W
- Variable speed control with 12-speed settings
- Airflow capacity: 450 m³/h at maximum speed
- Electronically controlled air distribution flaps
- Cabin air filter replacement interval: 15,000 miles or 12 months
Note: Regularly inspect and replace the cabin air filter to maintain system efficiency.
Control System and Sensors
Details about the HVAC control system, including sensors, actuators, and integration with the vehicle's electronics.
Control System and Sensors
Details about the HVAC control system, including sensors, actuators, and integration with the vehicle's electronics.
Control Module and Sensors
- HVAC control module integrated with the vehicle's CAN bus
- Cabin temperature sensors: 2 (driver and passenger zones)
- Sunload sensor for automatic climate adjustment
- Evaporator temperature sensor for frost protection
- Ambient temperature sensor for external climate monitoring
Actuators and User Interface
- Electronically controlled blend and distribution flaps
- Stepper motors for precise flap positioning
- iDrive interface for climate control settings
- Dual-zone temperature adjustment range: 16°C to 28°C
- Automatic defrost and recirculation modes
Note: Ensure proper calibration of actuators during system maintenance.
Search Specifications
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Component Specifications
General Specifications
- System Type
- Automatic Climate Control
- Refrigerant Type
- R134a
- Refrigerant Capacity
- 600 ± 25 grams
- Compressor Type
- Variable Displacement
- Compressor Oil Type
- PAG 46
- Compressor Oil Capacity
- 120 ± 10 ml
Blower Motor
- Power Rating
- 200W
- Voltage
- 12V DC
- Max Airflow
- 450 m³/h
- Part Number
- 64116932247
- Operational Temperature Range
- -40°C to 85°C
Heating System
- Heater Core Material
- Aluminum
- Heater Core Dimensions
- 200mm x 150mm x 50mm
- Max Heater Output
- 5.5 kW
- Coolant Flow Rate
- 10 L/min
- Part Number
- 64119264231
Air Conditioning System
- Evaporator Core Material
- Aluminum
- Evaporator Core Dimensions
- 180mm x 120mm x 40mm
- Condenser Material
- Aluminum
- Condenser Dimensions
- 300mm x 200mm x 20mm
- Part Number Evaporator
- 64119264232
- Part Number Condenser
- 64119264233
Temperature Control
- Temperature Range
- 16°C to 32°C
- Sensor Accuracy
- ±0.5°C
- Control Type
- Electronic
- Part Number Control Unit
- 64119264234
Air Distribution
- Vent Types
-
- Dashboard Vents
- Floor Vents
- Defrost Vents
- Vent Material
- ABS Plastic
- Vent Dimensions
- 50mm x 50mm
- Part Number Vent
- 64119264235
Filters
- Cabin Air Filter Type
- Activated Carbon
- Cabin Air Filter Dimensions
- 200mm x 150mm x 25mm
- Cabin Air Filter Part Number
- 64119264236
- Replacement interval
- 15,000 miles or 12 months
Pressure Sensors
- High Pressure Sensor Range
- 0 to 35 bar
- Low Pressure Sensor Range
- 0 to 10 bar
- Sensor Accuracy
- ±0.2 bar
- Part Number High Pressure Sensor
- 64119264237
- Part Number Low Pressure Sensor
- 64119264238
Diagnostic Specifications
- Fault Code Readout
- OBD-II compliant
- Diagnostic interface
- BMW-specific CAN bus
- Common Fault Codes
-
- P0532
- P0533
- P0534
- Diagnostic Tool
- BMW ISTA/D
Safety information
- Refrigerant Handling
- Use only approved R134a handling equipment
- High Pressure Warning
- System operates at high pressure, avoid direct contact
- Coolant Warning
- Coolant temperature can exceed 90°C, handle with care
Service Information Service
Detailed service requirements and schedules for the HVAC system
- Inspect and replace cabin air filter
- Check refrigerant levels
- Inspect blower motor operation
Ensure all connections are secure and free of debris
- Inspect and clean evaporator core
- Check compressor belt tension
- Inspect condenser for debris
Use only BMW-approved refrigerant and lubricants
- Replace refrigerant
- Inspect and test pressure sensors
- Check heater core for leaks
Perform a full system diagnostic using BMW ISTA/D
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What is the refrigerant type and capacity for the 2005-2011 BMW 335i HVAC system?
What is the refrigerant type and capacity for the 2005-2011 BMW 335i HVAC system?
The HVAC system in the 2005-2011 BMW 335i uses R134a refrigerant. The total system capacity is approximately 700-750 grams (24.7-26.5 ounces). Always refer to the under-hood label for exact specifications.
Q2 How do I reset the HVAC system in my BMW 335i?
How do I reset the HVAC system in my BMW 335i?
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 10-15 seconds until the LED lights on the HVAC control panel flash. Release the button, and the system will reset. This procedure may vary slightly depending on the model year.
Q3 What is the recommended maintenance interval for the cabin air filter in the 335i?
What is the recommended maintenance interval for the cabin air filter in the 335i?
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 Why is my BMW 335i HVAC system blowing warm air on one side and cold air on the other?
Why is my BMW 335i HVAC system blowing warm air on one side and cold air on the other?
This issue is often caused by a malfunctioning dual-zone temperature control system or a faulty blend door actuator. Diagnose the system using BMW-specific diagnostic tools to identify the exact cause. Replacement of the actuator or recalibration of the system may be required.
Q5 What is the operating pressure range for the HVAC system in the 335i?
What is the operating pressure range for the HVAC system in the 335i?
The low-side pressure should be between 25-35 psi, and the high-side pressure should be between 150-250 psi under normal operating conditions. These values may vary based on ambient temperature and system load.
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 Service Manual
Coming SoonOfficial BMW service manual for the HVAC system, including diagnostic procedures, component locations, and repair instructions.
Refrigerant Handling and Safety Guide
Coming SoonA comprehensive guide on handling R134a refrigerant, including safety precautions, proper charging procedures, and environmental regulations.
Cabin Air Filter Replacement Tutorial
Coming SoonStep-by-step instructions for replacing the cabin air filter in the 2005-2011 BMW 335i, including tools required and common pitfalls.
BMW HVAC Diagnostic Codes Reference
Coming SoonA list of common HVAC diagnostic trouble codes (DTCs) for the BMW 335i, along with troubleshooting tips and solutions.
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