BMW 550i 2011-2016

BMW 550i 2011-2016 HVAC Specifications

Detailed technical specifications and operational guide for the HVAC system in the 2011-2016 BMW 550i. Includes component details, diagnostic procedures, and repair instructions for the F10 chassis.

Updated Oct 24, 2023

Overview Specifications

Comprehensive description of the HVAC specifications for the 2011-2016 BMW 550I, 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 'blower motor', 'refrigerant capacity', or 'temperature control'. Use exact terms for precise results.

Navigate through the HVAC documentation by selecting the desired section from the table of contents. Each section is organized into subsections for easy access to specific technical details.

Key Specifications

Refrigerant Capacity

700g ± 20g

Heater Core Output

5.5 kW at 90°C

Blower Motor Speed

800 to 12,000 RPM

Airflow Capacity

450 CFM

Auxiliary Heater Output

1.2 kW

Available Specifications

Climate Control System

This section covers the automatic climate control system, including its components, functionality, and technical specifications.

Automatic Temperature Control

Dual-zone automatic climate control system
Temperature range: 60°F to 90°F (15.5°C to 32°C)
Integrated solar sensor for automatic adjustment
Microfilter system for air purification
Airflow control via stepper motors

Air Distribution System

Four-zone air distribution (face, footwell, windshield, side vents)
Airflow capacity: 450 CFM (cubic feet per minute)
Automatic recirculation mode for pollutant detection
Dual blower motors for independent zone control
Note: Airflow may vary based on driving conditions

Note: The recirculation mode activates automatically when high levels of pollutants are detected.

Heating System

Detailed information about the heating system, including its components, performance, and technical specifications.

Heater Core

High-efficiency aluminum heater core
Heat output: 5.5 kW at 90°C coolant temperature
Coolant flow rate: 12 L/min
Integrated temperature control valve
Note: Ensure coolant levels are maintained for optimal performance

Auxiliary Heating

Electric auxiliary heater with 1.2 kW output
Activation temperature: below 41°F (5°C)
Integrated timer for pre-heating functionality
Power consumption: 12V, 100A
Note: Auxiliary heating is only available in specific cold-weather packages

Air Conditioning System

This section provides detailed information about the air conditioning system, including refrigerant specifications, compressor details, and cooling performance.

Refrigerant System

Refrigerant type: R134a
Refrigerant capacity: 700g ± 20g
Operating pressure: 2.5 bar (low side), 15 bar (high side)
Evaporator temperature range: 35°F to 50°F (1.6°C to 10°C)
Note: Use only manufacturer-approved refrigerant

Compressor and Condenser

Variable displacement compressor with magnetic clutch
Compressor displacement: 160 cc/rev
Condenser airflow: 300 CFM
Cooling capacity: 4.5 kW at 35°C ambient temperature
Note: Compressor operation is controlled by the engine management system

Ventilation System

Details about the ventilation system, including blower motor specifications, air intake, and filtration.

Blower Motor

Dual blower motors with 12V DC power supply
Motor speed range: 800 to 12,000 RPM
Airflow control via PWM (Pulse Width Modulation)
Power consumption: 150W per motor
Note: Blower motors are serviceable and replaceable

Air Filtration

Dual microfilter system with activated carbon
Filter replacement interval: 15,000 miles or 12 months
Particle filtration efficiency: 95% for particles > 0.3 microns
Integrated pollen filter for allergen reduction
Note: Regular filter replacement ensures optimal air quality

Search Specifications

Search by specification name, value, or description

Component Specifications

General Specifications

System Type: Automatic Climate Control with Dual-Zone Temperature Regulation

Refrigerant Type: R134a

Refrigerant Capacity: 600 ± 25 grams

Compressor Type: Variable Displacement Compressor

Compressor Part Number: 64529258801

Blower Motor Type: Electronically Controlled Brushless Motor

Blower Motor Part Number: 64119264267

Temperature Control

Temperature Range: 16°C to 32°C (60.8°F to 89.6°F)

Temperature Resolution: 0.5°C (0.9°F)

Dual Zone Differential: ± 2°C (3.6°F)

Sensor Accuracy: ± 0.5°C (0.9°F)

Sensor Part Number: 64119264268

Airflow Control

Fan Speed Levels: 8 levels

Max Airflow Rate: 12.5 m³/min

Air Distribution Modes

Face
Footwell
Defrost
Combination

Recirculation Mode: Automatic and Manual

Recirculation Motor Part Number: 64119264269

Heating System

Heater Core Type: Aluminum Core

Heater Core Part Number: 64119264270

Max Heating Capacity: 6.5 kW

Coolant Flow Rate: 12 L/min

Coolant Temperature Range: 80°C to 105°C (176°F to 221°F)

Cooling System

Evaporator Type: Plate and Fin

Evaporator Part Number: 64119264271

Max Cooling Capacity: 4.2 kW

Condenser Type: Parallel Flow

Condenser Part Number: 64529258802

Expansion Valve Type: Thermostatic Expansion Valve

Expansion Valve Part Number: 64529258803

Filters

Cabin Air Filter Type: Combination Particle and Activated Carbon Filter

Cabin Air Filter Part Number: 64119264272

Filter Replacement interval: 15,000 miles or 12 months

Filter Efficiency: 95% for particles > 0.3 microns

Electrical Specifications

System Voltage: 12V DC

Blower Motor Power: 200W

Compressor Clutch Power: 60W

Control Module Part Number: 64529258804

Fuse Rating: 30A

Diagnostic Specifications

Diagnostic interface: OBD-II

Fault Code Storage: Up to 20 codes

Self Diagnosis Capability: Full system diagnostics

Diagnostic Tool Compatibility: BMW ISTA/D or equivalent

Operational Limits

Max Ambient Temperature: 50°C (122°F)

Min Ambient Temperature: -30°C (-22°F)

Max System Pressure: 30 bar

Min System Pressure: 2 bar

Compressor Speed Range: 800 to 6000 RPM

Maintenance Specifications

Refrigerant Recharge interval: Every 2 years or as needed

System Leak Test interval: Every 2 years

Lubricant Type: PAG Oil

Lubricant Quantity: 150 ± 10 ml

Belt Tension Specification: 500 ± 50 N

Service Information Service

Detailed service requirements and schedules for the HVAC system

15,000

Inspect and replace cabin air filter
Check refrigerant level and pressure
Inspect compressor belt tension

Ensure all connections are secure and free of leaks

30,000

Perform system leak test
Recharge refrigerant if necessary
Inspect and clean evaporator and condenser coils

Use only BMW-approved refrigerant and lubricants

60,000

Replace compressor clutch if worn
Inspect and replace expansion valve if necessary
Check and recalibrate temperature sensors

Follow BMW ISTA/D diagnostic procedures for recalibration

Frequently Asked Questions

Find answers to common questions about torque specifications

What is the refrigerant type and capacity for the 2011-2016 BMW 550i HVAC system?

The HVAC system in the 2011-2016 BMW 550i 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.

How do I reset the HVAC system after replacing the battery or performing maintenance?

To reset the HVAC system, turn the ignition to the ON position (do not start the engine). Set the temperature to maximum heat and fan speed to the lowest setting. Press and hold the front defrost button for 10 seconds. The system will reset and recalibrate.

What is the recommended interval for replacing the cabin air filter in the 2011-2016 BMW 550i?

The cabin air filter should be replaced every 15,000 to 20,000 miles or annually, whichever comes first. In dusty or polluted environments, more frequent replacement may be necessary.

How do I diagnose a weak airflow issue in the HVAC system?

Weak airflow can be caused by a clogged cabin air filter, a malfunctioning blower motor, or obstructed air ducts. Start by inspecting and replacing the cabin air filter. If the issue persists, check the blower motor and its resistor for proper operation. Use a diagnostic scan tool to check for fault codes related to the HVAC system.

What is the function of the IHKA (Integrated Automatic Heating and Air Conditioning) system in the 2011-2016 BMW 550i?

The IHKA system controls and regulates the temperature, airflow, and distribution of air within the cabin. It uses sensors to monitor interior and exterior conditions, adjusting settings automatically for optimal comfort. The system also includes features like dual-zone climate control and defrost functions.

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 550i HVAC System Service Manual

Coming Soon

Official service manual detailing HVAC system components, maintenance procedures, and troubleshooting steps.

Cabin Air Filter Replacement Guide

Coming Soon

Step-by-step instructions for replacing the cabin air filter in the 2011-2016 BMW 550i.

HVAC System Diagnostics and Repair

Coming Soon

Comprehensive guide to diagnosing and repairing common HVAC system issues in the BMW 550i.

Refrigerant Handling and Safety Guidelines

Coming Soon

Safety and handling instructions for working with R134a refrigerant in the BMW 550i HVAC system.

About the Author

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