BMW X4 2018-present

BMW X4 2018-present HVAC Specifications

Detailed technical specifications and performance metrics for the 2018-Present BMW X4 HVAC system. Learn about components, diagnostics, and maintenance procedures specific to the BMW X4 climate control system.

Updated Oct 14, 2023

Overview Specifications

Comprehensive description of the HVAC specifications for the 2018-Present BMW X4, including key features, measurements, and technical details. This section covers the heating, ventilation, and air conditioning system, focusing on its components, performance, 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'. Use exact terms for best results.

Navigate through the HVAC documentation sections using the table of contents. Each major section is divided into subsections for detailed information on specific components and functionalities.

Key Specifications

Refrigerant Capacity

550 g (R1234yf)

Heating Capacity

5.5 kW

Cooling Capacity

3.5 kW

Airflow Volume

450 m³/h

Filter Replacement Interval

15,000 miles

Available Specifications

Climate Control System

Details about the automatic and manual climate control systems, including temperature regulation, air distribution, and control interfaces.

Automatic Climate Control

Dual-zone automatic climate control system standard on all trims
Temperature range: 60°F to 84°F (15.5°C to 29°C)
Includes humidity and air quality sensors
Automatic recirculation mode for improved air quality
Integrated with iDrive system for seamless control

Manual Climate Control

Available on base trims with manual adjustment options
Three-speed blower fan with adjustable airflow direction
Basic temperature control range: 60°F to 84°F (15.5°C to 29°C)
Manual recirculation mode for cabin air
Simple rotary dials for temperature and fan speed

Note: Manual climate control lacks advanced features like humidity sensors and automatic air distribution.

Heating and Cooling Components

Technical details about the HVAC system's heating and cooling components, including the heater core, evaporator, and refrigerant system.

Heater Core

High-efficiency aluminum heater core
Heating capacity: 5.5 kW at full load
Integrated with engine coolant system
Rapid heat-up time: 3-5 minutes at idle
Durable design with corrosion-resistant materials

Evaporator and Refrigerant System

Evaporator capacity: 3.5 kW cooling power
Refrigerant type: R1234yf, 550 g capacity
Refrigerant pressure: 150-300 psi (operating range)
Includes expansion valve for precise refrigerant flow control
Designed for minimal refrigerant leakage

Note: R1234yf refrigerant is environmentally friendly with a low global warming potential (GWP).

Air Distribution and Filtration

Information about the air distribution system, including vents, blower motor, and cabin air filtration.

Air Vents and Distribution

Multi-zone air distribution with adjustable vents
Front and rear vent systems for balanced airflow
Airflow volume: up to 450 m³/h
Includes defrost and footwell air distribution modes
Automatic air direction adjustment based on temperature settings

Cabin Air Filtration

Microfilter with activated carbon layer
Particle filtration efficiency: 99.9% for PM2.5
Filter replacement interval: 15,000 miles or 12 months
Integrated air quality sensor for automatic filtration activation
Reduces allergens, odors, and pollutants

Note: The activated carbon filter is highly effective against harmful gases and odors.

HVAC System Maintenance

Guidelines for maintaining the HVAC system, including component inspection, refrigerant checks, and filter replacement.

Routine Maintenance

Inspect refrigerant levels every 30,000 miles
Check blower motor and fan operation annually
Clean air vents and ducts to prevent blockages
Verify temperature control accuracy during service
Inspect for refrigerant leaks using UV dye

Filter Replacement

Replace cabin air filter every 15,000 miles
Use only OEM or equivalent replacement filters
Check filter housing for debris during replacement
Reset filter replacement reminder in iDrive system
Ensure proper filter orientation during installation

Note: Neglecting filter replacement can reduce HVAC efficiency and air quality.

Search Specifications

Search by specification name, value, or description

Component Specifications

General Specifications

System Type: Automatic Dual-Zone Climate Control

Refrigerant Type: R1234yf

Refrigerant Capacity: 500 ± 25 grams

Compressor Type: Variable Displacement

Blower Motor Power: 200W

Airflow Capacity: 1500 m³/h

Temperature Control

Temperature Range: 16°C to 30°C

Temperature Resolution: 0.5°C

Sensor Accuracy: ±0.5°C

Auto Mode Response Time: 5-10 minutes

Air Distribution

Vent Types

Face
Footwell
Defrost
Combined

Airflow Direction Control: Electronically Adjustable

Recirculation Mode: Automatic and Manual

Air Quality Sensor: Integrated PM2.5 and VOC Sensor

Heating System

Heater Core Capacity: 6 kW

Heater Core Material: Aluminum

Water Valve Type: Electronically Controlled

Max Heating Temperature: 60°C

Cooling System

Evaporator Capacity: 4.5 kW

Evaporator Material: Aluminum

Condenser Type: Microchannel

Cooling Efficiency: COP 3.2

Filters

Cabin Filter Type: Combination Particle and Activated Carbon

Cabin Filter Part Number: 64 31 9 388 099

Filter Replacement interval: 15,000 miles or 12 months

Filter Efficiency: PM2.5 filtration > 95%

Electrical Specifications

System Voltage: 12V DC

Compressor Power Consumption: 400W max

Blower Motor Current: 16.7A max

Control Module Part Number: 64 11 9 388 123

Diagnostics

Fault Codes

IHKA-1
IHKA-2
IHKA-3

Diagnostic interface: OBD-II

Self Diagnosis Mode: Integrated

Error Code Storage: Up to 50 codes

Maintenance

Refrigerant Check interval: Every 2 years or 30,000 miles

System Pressure Check: Every 2 years or 30,000 miles

Blower Motor inspection: Every 30,000 miles

Condenser Cleaning: As needed, based on environment

Safety

High Pressure Cutoff: 35 bar

Low Pressure Cutoff: 1.5 bar

Overheat Protection: 70°C

Emergency Shutdown: Integrated in control module

Service Information Service

Detailed service requirements and schedules for the HVAC system

15,000

Replace cabin air filter
Inspect blower motor and ducts
Check refrigerant levels

Service intervals may vary based on driving conditions.

30,000

Inspect and clean condenser
Check system pressure
Perform diagnostic scan

Ensure refrigerant type and capacity meet specifications.

Frequently Asked Questions

Find answers to common questions about torque specifications

What is the refrigerant type and capacity for the 2018-Present BMW X4 HVAC system?

The HVAC system in the 2018-Present BMW X4 uses R1234yf refrigerant, with a total system capacity of approximately 500-550 grams. Always refer to the vehicle's service manual for exact specifications based on the model and trim.

How do I reset the HVAC system in my BMW X4?

To reset the HVAC system, turn the ignition to the ON position without starting the engine. Set the temperature to the highest setting, then press and hold the AC button for 10 seconds. The system will reset, and the AC light will blink to confirm. This procedure may vary slightly depending on the model year and trim.

What is the recommended maintenance interval for the HVAC cabin air filter?

The cabin air filter in the BMW X4 should be inspected every 15,000 miles and replaced every 30,000 miles or as needed based on driving conditions. A clogged filter can reduce HVAC efficiency and air quality.

How does the automatic climate control system work in the BMW X4?

The automatic climate control system in the BMW X4 uses multiple sensors to monitor cabin temperature, humidity, and sunlight. It adjusts fan speed, air distribution, and temperature settings automatically to maintain the desired comfort level. The system also includes a microfilter to improve air quality.

What are the common symptoms of a failing HVAC blower motor?

Common symptoms include reduced airflow, unusual noises (such as squealing or grinding), and complete failure of the blower motor. If you experience these issues, it is recommended to have the system inspected by a certified BMW technician.

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 X4 HVAC System Service Manual

Coming Soon

Official service manual for the HVAC system, including detailed repair and maintenance procedures.

BMW Genuine Parts Catalog

Coming Soon

Access the official BMW parts catalog to find genuine HVAC components for your X4.

BMW X4 HVAC Troubleshooting Guide

Coming Soon

Step-by-step guide to diagnosing and resolving common HVAC issues in the BMW X4.

BMW X4 Owner's Manual

Coming Soon

Official owner's manual with information on operating and maintaining the HVAC system.

About the Author

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