BMW i8 2014-2020

BMW i8 2014-2020 HVAC Specifications

Detailed technical specifications for the HVAC system in the 2014-2020 BMW i8. Learn about system components, refrigerant type, climate control features, and diagnostic procedures specific to this hybrid vehicle.

Updated Oct 24, 2023

Overview Specifications

Comprehensive description of the HVAC specifications for the 2014-2020 BMW i8, including key features, measurements, and technical details. This section covers the heating, ventilation, and air conditioning system, focusing on its advanced design, energy efficiency, and integration with the vehicle's hybrid powertrain.

How to Use

Use the search function to locate specific HVAC specifications by entering keywords such as 'refrigerant capacity', 'blower motor', or 'temperature control'.

Navigate through the HVAC documentation sections using the table of contents or by scrolling through the document. Each major section is labeled with a title and includes subsections for detailed information.

Key Specifications

Refrigerant Type

R1234yf

Refrigerant Capacity

450 g ± 20 g

Maximum Airflow

12 m³/min

Blower Motor Power

150 W

Temperature Range

16°C to 28°C

Available Specifications

HVAC System Overview

This section provides an overview of the BMW i8's HVAC system, including its design, components, and integration with the vehicle's hybrid powertrain.

System Design

Dual-zone automatic climate control system
Electrically driven compressor for energy efficiency
Integration with the vehicle's hybrid powertrain for reduced energy consumption
Air conditioning refrigerant: R1234yf, capacity: 450 g ± 20 g

Key Components

High-performance blower motor with a maximum airflow of 12 m³/min
Microfilter system with activated carbon for air purification
Electric PTC (Positive Temperature Coefficient) heater for rapid cabin heating
Evaporator and condenser designed for optimal thermal efficiency

Note: The electric PTC heater is particularly effective in cold weather conditions, ensuring quick cabin warmth without relying on the internal combustion engine.

Temperature Control

This section details the temperature control features of the BMW i8's HVAC system, including the dual-zone climate control and advanced sensors.

Dual-Zone Climate Control

Independent temperature control for driver and front passenger
Temperature range: 16°C to 28°C (60.8°F to 82.4°F)
Automatic temperature regulation based on external and internal sensors
Stepless fan speed control for precise airflow adjustment

Sensors and Regulation

Solar sensor for adjusting cooling based on sunlight intensity
Interior temperature sensor with a resolution of ±0.5°C
Humidity sensor for defogging and comfort optimization
Automatic recirculation mode to reduce external pollutants

Air Distribution and Ventilation

This section covers the air distribution and ventilation system, including the various modes and airflow management.

Air Distribution Modes

Four primary air distribution modes: Face, Foot, Foot-Defrost, and Defrost
Adjustable side vents for personalized airflow direction
Automatic mode for optimized air distribution based on temperature settings
Rear footwell vents for passenger comfort

Airflow Management

Maximum airflow rate: 12 m³/min
Variable fan speed with 12 adjustable levels
Automatic air recirculation to maintain cabin air quality
Defrost mode with rapid windshield clearing capability

Note: The defrost mode is designed to clear the windshield in under 3 minutes under typical conditions.

Energy Efficiency and Hybrid Integration

This section highlights the energy-efficient design of the HVAC system and its integration with the BMW i8's hybrid powertrain.

Energy-Efficient Design

Electrically driven compressor reduces engine load and improves fuel efficiency
PTC heater operates independently of the internal combustion engine
Low power consumption blower motor: 150 W maximum
Smart energy management system to prioritize battery usage

Hybrid Powertrain Integration

HVAC system powered by the high-voltage battery during electric-only driving
Seamless transition between electric and combustion power sources
Energy recovery during braking to support HVAC operation
Pre-conditioning feature to optimize cabin temperature while charging

Note: Pre-conditioning can be activated via the BMW ConnectedDrive app, allowing the cabin to reach the desired temperature before driving.

Search Specifications

Search by specification name, value, or description

Component Specifications

General Specifications

System Type: Automatic Dual-Zone Climate Control

Refrigerant Type: R-1234yf

Refrigerant Capacity: 500 ± 20 g

Compressor Type: Electric Scroll Compressor

Compressor Power Consumption: 400 W

Heating System: Electric PTC Heater

Heater Power Output: 5 kW

Airflow Specifications

Blower Motor Type: Brushless DC Motor

Blower Motor Power: 200 W

Max Airflow Rate: 600 m³/h

Airflow Direction Control: Multi-directional vents with automatic adjustment

Recirculation Mode: Automatic and Manual

Temperature Control

Temperature Range: 16°C to 28°C

Temperature Sensor Accuracy: ±0.5°C

Dual Zone Differential: Up to 4°C difference between zones

Auto Mode Response Time: Less than 2 minutes

Filtration System

Filter Type: Combination Particulate and Activated Carbon Filter

Filter Part Number: 64 31 9 388 123

Filter Replacement interval: Every 15,000 miles or 12 months

Filter Efficiency: 99% for particles > 0.3 µm

Cooling Performance

Cooling Capacity: 6,000 BTU/h

Evaporator Type: Plate-Fin Evaporator

Evaporator Part Number: 64 11 9 388 456

Condenser Type: Microchannel Condenser

Condenser Part Number: 64 11 9 388 789

Heating Performance

Heating Capacity: 5 kW

Ptc Heater Part Number: 64 12 9 388 321

Heater Core Type: Aluminum Heater Core

Heater Core Part Number: 64 12 9 388 654

Electrical Specifications

System Voltage: 12 V DC

Max Current Draw: 30 A

Fuse Rating: 40 A

Control Module Part Number: 64 11 9 388 987

Wiring Harness Part Number: 61 12 9 388 321

Diagnostic Specifications

Diagnostic interface: OBD-II

Fault Code Storage: Up to 20 fault codes

Self Diagnosis Mode: Automatic and Manual

Diagnostic Tool Compatibility: BMW ISTA/D

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

Ductwork Cleaning Interval: Every 15,000 miles

Safety Specifications

High Pressure Cutoff: 3,000 kPa

Low Pressure Cutoff: 150 kPa

Overheat Protection: Automatic shutdown at 120°C

Short Circuit Protection: 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 level

Ensure use of R-1234yf refrigerant only

30,000

Inspect and clean evaporator and condenser
Check system pressure
Inspect electrical connections

Perform system pressure test using approved equipment

60,000

Replace refrigerant
Inspect and test PTC heater
Perform full system diagnostic

Use BMW ISTA/D for diagnostics

Frequently Asked Questions

Find answers to common questions about torque specifications

What is the refrigerant type and capacity for the 2014-2020 BMW i8 HVAC system?

The 2014-2020 BMW i8 HVAC system uses R1234yf refrigerant, with a total system capacity of approximately 500 grams (17.6 ounces). This refrigerant is environmentally friendly and complies with EU regulations.

How does the BMW i8's heat pump system work in cold weather?

The BMW i8 utilizes an electric heat pump system that extracts heat from the ambient air, even at low temperatures, and transfers it to the cabin. This system is highly efficient and reduces the load on the high-voltage battery, ensuring optimal range in cold conditions.

What is the airflow rate of the BMW i8's HVAC system?

The HVAC system in the BMW i8 delivers a maximum airflow rate of 12.5 cubic meters per minute (440 cubic feet per minute) when operating at full capacity, ensuring rapid cabin temperature adjustment.

How do I reset the HVAC system in my BMW i8?

To reset the HVAC system, turn the ignition to the ON position without starting the engine. Set the temperature to maximum heat, then press and hold the AC and recirculation buttons simultaneously for 10 seconds. The system will reset and recalibrate.

What are the recommended service intervals for the HVAC system in the BMW i8?

BMW recommends inspecting the HVAC system every 30,000 miles or 24 months, whichever comes first. This includes checking refrigerant levels, cabin air filters, and system performance. Always refer to the official service manual for specific guidelines.

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 i8 HVAC System Overview

Coming Soon

A detailed guide to the HVAC system in the 2014-2020 BMW i8, including component locations, specifications, and operational principles.

Refrigerant Handling and Safety

Coming Soon

Learn about the proper handling, storage, and disposal of R1234yf refrigerant, including safety precautions and environmental considerations.

BMW i8 HVAC Troubleshooting Guide

Coming Soon

Step-by-step troubleshooting procedures for common HVAC issues in the BMW i8, including error codes and diagnostic tips.

Cabin Air Filter Replacement Instructions

Coming Soon

Detailed instructions for replacing the cabin air filter in the BMW i8, including tools required and step-by-step procedures.

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