BMW 530i 2003-2010

BMW 530i 2003-2010 HVAC Specifications

Comprehensive technical specifications for the HVAC system in the 2003-2010 BMW 530I. Learn about system components, refrigerant requirements, climate control functions, and troubleshooting tips for the E60 chassis.

Updated Oct 24, 2023

Overview Specifications

Comprehensive description of the HVAC specifications for the 2003-2010 BMW 530I, including key features, measurements, and technical details. This section provides detailed insights into the heating, ventilation, and air conditioning system, ensuring optimal performance and maintenance.

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 major sections listed below.

Key Specifications

Refrigerant Capacity

24 oz (680 g)

Blower Motor Airflow

400 CFM

Heater Core Flow Rate

1.5 GPM

Condenser Cooling Capacity

12,000 BTU/h

Auxiliary Water Pump Flow Rate

1.2 GPM

Available Specifications

HVAC System Overview

This section provides an overview of the HVAC system, including its components, functionality, and key specifications.

System Components

Dual-zone automatic climate control system
Electrically driven auxiliary water pump
Microfilter for air purification
Blower motor with variable speed control
Refrigerant type: R134a

System Functionality

Automatic temperature control with dual-zone capability
Air distribution via multiple vents and ducts
Defrost and demist functions for windshield and side windows
Recirculation mode for improved air quality
Integrated cabin air filter system

Note: The dual-zone system allows driver and front passenger to set individual temperature preferences.

Heating System Specifications

Detailed specifications and technical details of the heating system, including components and performance metrics.

Heater Core

Material: Aluminum and plastic composite
Dimensions: 12.5 x 6.3 x 2.8 inches
Flow rate: 1.5 gallons per minute (GPM)
Operating temperature range: 140°F to 200°F
Pressure rating: 30 psi

Auxiliary Water Pump

Electric motor-driven pump
Flow rate: 1.2 GPM
Voltage: 12V DC
Power consumption: 60W
Operating temperature: -40°F to 250°F

Note: The auxiliary water pump ensures consistent coolant flow for heating during low engine RPM.

Air Conditioning System Specifications

Technical details and specifications of the air conditioning system, including refrigerant capacity and component measurements.

Compressor

Type: Swash plate variable displacement
Refrigerant capacity: 24 oz (680 g)
Displacement: 160 cc/rev
Maximum pressure: 450 psi
Lubricant: PAG oil, 8 oz (240 ml)

Condenser

Material: Aluminum
Dimensions: 24 x 12 x 1.2 inches
Surface area: 288 square inches
Pressure rating: 500 psi
Cooling capacity: 12,000 BTU/h

Note: The condenser is designed for efficient heat dissipation under high-pressure conditions.

Ventilation System Specifications

Details about the ventilation system, including airflow rates, blower motor specifications, and air distribution.

Blower Motor

Type: Brushless DC motor
Voltage: 12V DC
Power output: 200W
Airflow rate: 400 cubic feet per minute (CFM)
Noise level: < 50 dB

Air Distribution

Front vents: 4 adjustable outlets
Rear vents: 2 fixed outlets
Airflow control: Electronic flap actuators
Air recirculation rate: 80%
Filter efficiency: 95% for particles > 0.3 microns

Note: The electronic flap actuators ensure precise control over air distribution.

Search Specifications

Search by specification name, value, or description

Component Specifications

General Specifications

System Type: Automatic Climate Control

Refrigerant Type: R134a

Refrigerant Capacity: 700 ± 25 grams

Compressor Type: Variable Displacement

Compressor Oil Type: PAG oil

Compressor Oil Capacity: 120 ± 10 ml

Blower Motor

Power Rating: 200W

Voltage: 12V DC

Airflow Rate: Max 450 m³/h

Part Number: 64 11 6 923 456

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: 64 11 6 923 457

Air Conditioning

Evaporator Material: Aluminum

Evaporator Dimensions: 180mm x 120mm x 40mm

Cooling Capacity: 4.2 kW

Expansion Valve Type: Thermostatic

Part Number: 64 11 6 923 458

Air Distribution

Vent Types

Dashboard vents
Floor vents
Defrost vents

Vent Material: ABS Plastic

Vent Actuator Type: Electric

Part Number: 64 11 6 923 459

Airflow Direction Control: Automatic and Manual

Filters

Cabin Air Filter Type: Combination Particle and Activated Carbon

Cabin Air Filter Dimensions: 200mm x 150mm x 25mm

Replacement interval: 15,000 miles or 12 months

Part Number: 64 31 6 923 460

Sensors

interior Temperature Sensor: Type: NTC Thermistor
Operational Range: -40°C to 85°C
Accuracy: ±0.5°C
Part Number: 64 11 6 923 461

Exterior Temperature Sensor: Type: NTC Thermistor
Operational Range: -40°C to 85°C
Accuracy: ±1°C
Part Number: 64 11 6 923 462

Sunlight Sensor: Type: Photodiode
Operational Range: 0 to 100,000 Lux
Part Number: 64 11 6 923 463

Control Unit

Type: IHKA Control Module

Voltage: 12V DC

Operational Temperature Range: -40°C to 85°C

Part Number: 64 11 6 923 464

Diagnostic interface: OBD-II

Ducting And Hoses

Material: Reinforced Rubber and Plastic

Diameter: 50mm to 80mm

Operational Temperature Range: -40°C to 120°C

Part Number: 64 11 6 923 465

Safety Features

High Pressure Cutoff: 30 bar

Low Pressure Cutoff: 1.5 bar

Overheat Protection: 95°C

Refrigerant Leak Detection: Automatic Shutdown

Service Information Service

Detailed service requirements and schedules for the HVAC system

15,000 miles

12 months

Inspect and replace cabin air filter
Check refrigerant level and pressure
Inspect blower motor and ducts

Ensure all connections are secure and free of debris

30,000 miles

24 months

Inspect and clean evaporator and condenser coils
Check and replace any worn hoses or ducting
Verify proper operation of all sensors and actuators

Use only BMW-approved refrigerant and lubricants

60,000 miles

48 months

Perform full system diagnostic
Replace refrigerant and compressor oil
Inspect and test all electrical connections

Ensure all safety features are functioning correctly

Frequently Asked Questions

Find answers to common questions about torque specifications

What is the refrigerant type and capacity for the 2003-2010 BMW 530i HVAC system?

The HVAC system in the 2003-2010 BMW 530i uses R134a refrigerant. The total system capacity is approximately 850 grams (30 ounces). Always ensure the refrigerant is handled and charged according to BMW specifications to avoid system damage.

How do I reset the HVAC system after a battery replacement?

After a battery replacement, the HVAC system may require a reset. Turn the ignition to the ON position, set the temperature to maximum heat, and press the defrost button for 10 seconds. This resets the system and ensures proper calibration of the blend doors and sensors.

What is the recommended interval for replacing the cabin air filter?

The cabin air filter in the 2003-2010 BMW 530i should be replaced every 15,000 to 20,000 miles or annually, whichever comes first. A clogged filter can reduce HVAC efficiency and airflow.

How do I diagnose a malfunctioning HVAC blower motor?

A malfunctioning blower motor may exhibit symptoms such as no airflow or unusual noises. Check the blower motor resistor, fuses, and wiring harness for faults. The blower motor operates at 12V and should be tested with a multimeter. If the motor fails, replace it with a genuine BMW part to ensure compatibility.

What is the purpose of the IHKA control unit in the HVAC system?

The IHKA (Integrierte Heizungs- und Klimaanlage) control unit is the central module that manages the HVAC system. It regulates temperature, airflow distribution, and compressor operation based on inputs from sensors and user settings. Faults in the IHKA unit can cause erratic HVAC behavior and require professional diagnosis.

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 Soon

Detailed technical guide covering the operation, components, and maintenance of the HVAC system in the 2003-2010 BMW 530i.

Refrigerant Handling and Safety

Coming Soon

Step-by-step instructions for safely handling and charging R134a refrigerant in BMW HVAC systems, including safety precautions and tools required.

Cabin Air Filter Replacement Guide

Coming Soon

Visual guide and instructions for replacing the cabin air filter in the 2003-2010 BMW 530i, including tool recommendations and tips for accessing the filter housing.

IHKA Control Unit Diagnostics

Coming Soon

Technical manual for diagnosing and troubleshooting issues with the IHKA control unit, including fault codes and repair procedures.

About the Author

Expert automotive knowledge and experience

ASE

Alan Montanye

Automotive Technical Specialist

ASE Master Certified Technician with over a decade of hands-on experience in automotive repair and diagnostics.

Facebook Contact

15+ Years

Experience

500+ Guides

Guides

50+ Makes

Vehicles

1000+ Solutions

Solutions

Diagnostic

Specialized in advanced diagnostic techniques using modern scan tools and oscilloscopes.

Repair

Expert in both traditional mechanical repairs and modern vehicle systems.

Additional Expertise

Documentation

Created over 500 detailed repair guides and technical documents.

Training

Conducted technical training sessions and contributed to repair databases.

Certifications & Research

Certifications

ASE Master Technician Certification
Advanced Diagnostic Specialist
Hybrid/Electric Vehicle Systems
Performance Tuning Expert

Research & Community

Actively researches emerging technologies and contributes to automotive forums.

Legal Disclaimer

Important information about using this content

Always refer to your vehicle's service manual and take appropriate safety precautions when performing any maintenance or repairs.

General Information

The information provided on this website is for general informational purposes only. While we strive to maintain accuracy in our content, all specifications, procedures, and technical information should be verified against your vehicle's official service manual or with the manufacturer directly.

Warranty & Liability

The content on this website is provided "as is" without any representations or warranties, express or implied. We make no representations or warranties regarding the accuracy, completeness, or availability of the information.

We shall not be liable for any direct, indirect, special, or consequential damages arising from the use of information on this website.

Technical Information

All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
Vehicle specifications and procedures may vary by model year, trim level, and region.
Always follow the manufacturer's recommended procedures and safety precautions.
Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
If you're unsure about any procedure, consult a qualified professional mechanic.

Intellectual Property

All content, including text, images, and specifications, is protected by copyright and other intellectual property laws. Any unauthorized use or reproduction is prohibited.