Mercedes-Benz Mercedes CLS 2018-present HVAC Specifications
Mercedes-Benz Mercedes CLS 2018-present

Mercedes-Benz Mercedes CLS 2018-present HVAC Specifications

Explore the comprehensive HVAC specifications for the 2018-Present Mercedes-Benz CLS. Learn about system components, performance metrics, and maintenance tips to ensure optimal climate control and comfort.

Updated

Overview Specifications

This document provides detailed specifications and information about the HVAC (Heating, Ventilation, and Air Conditioning) system in the 2018-Present Mercedes-Benz CLS. It is designed to help users understand the features, functionality, and technical details of the HVAC system. Use this guide to navigate through sections, search for specific information, and quickly reference key specifications.

How to Use

Use the search functionality to find specific terms or features related to the HVAC system. Enter keywords such as 'climate control' or 'airflow' to locate relevant sections quickly.

Navigate through the document by scrolling through sections or using the table of contents. Each section is organized into subsections with detailed points for easy reference.

Key Specifications

Climate Control Zones

2 (Dual-Zone)

Air Filtration Efficiency

99% (Particulate Filter)

Seat Heating Levels

3 Levels

Pre-entry Climate Control

Yes (via App)

Energy Efficiency Mode

Eco Mode

Available Specifications

Climate Control System

The Mercedes-Benz CLS features an advanced climate control system designed to provide optimal comfort for all passengers. This section covers the dual-zone automatic climate control, air distribution, and temperature regulation features.

Dual-Zone Automatic Climate Control
  • Independent temperature control for driver and front passenger
  • Automatic adjustment based on external and internal conditions
  • Includes humidity and air quality sensors
  • Energy-efficient operation to reduce fuel consumption
Air Distribution
  • Multiple air vents for precise airflow control
  • Adjustable vents for personalized comfort
  • Rear-seat ventilation for passenger comfort
  • Defrost and demist functions for windshield and side windows

Air Filtration System

The CLS is equipped with a high-performance air filtration system to ensure clean and healthy cabin air. This section details the filtration technology, maintenance, and benefits.

Particulate Air Filter
  • Captures fine dust, pollen, and pollutants
  • Activated carbon layer for odor reduction
  • Automatically adjusts filtration based on air quality
  • Easy-to-replace filter design
Ionization System
  • Releases negative ions to purify cabin air
  • Reduces allergens and bacteria
  • Improves overall air quality
  • Can be activated or deactivated via settings

Heating and Cooling Features

This section highlights the heating and cooling capabilities of the CLS HVAC system, including seat climate control and advanced temperature management.

Heated and Ventilated Seats
  • Front seats with heating and ventilation options
  • Adjustable intensity levels for personalized comfort
  • Automatic activation based on cabin temperature
  • Rear seats with optional heating
Advanced Temperature Management
  • Pre-entry climate control via Mercedes Me app
  • Rapid cooling and heating modes
  • Sun sensor for automatic temperature adjustment
  • Energy-saving eco mode for reduced power consumption

Component Specifications

Overview

Type
Automatic Climate Control
Configuration
Dual-zone
Platform
Integrated with MBUX Infotainment
Material
High-grade plastics and aluminum
Location
Dashboard and rear console

Dimensions

Compressor Length
8.5 inches / 21.6 cm
Compressor Width
6.2 inches / 15.7 cm
Compressor Height
5.9 inches / 15 cm
Condenser Length
24.8 inches / 63 cm
Condenser Width
12.6 inches / 32 cm
Evaporator Length
18.9 inches / 48 cm
Evaporator Width
8.3 inches / 21 cm

Materials

Compressor Housing
Aluminum alloy
Condenser Fins
Copper and aluminum
Evaporator Coils
Aluminum
Air Ducts
High-density polyethylene
Control Panel
Glass and brushed aluminum

Features

Climate Control
  • Dual-zone temperature adjustment
  • Rear-seat climate control
  • Automatic air recirculation
  • Sunlight sensor for automatic adjustment
Air Quality
  • Active charcoal filter
  • Ionizer for air purification
  • Automatic pollution detection
Comfort
  • Heated and ventilated seats
  • Steering wheel heating
  • Automatic defogging
integration
  • MBUX voice control
  • Smartphone app remote control
  • Navigation-linked climate control
Performance
  • High-efficiency compressor
  • Low-noise operation
  • Rapid cooling and heating

Safety Features

System Monitoring
  • Automatic fault detection
  • Overheat protection
Airflow Control
  • Automatic defogging
  • Emergency air recirculation
Child Safety
  • Rear-seat climate lock
  • Temperature limit settings

Comfort Features

Temperature Control
  • Pre-entry climate control
  • Individual zone settings
Airflow
  • Multi-directional vents
  • Adjustable fan speeds
Humidity Control
  • Automatic humidity adjustment
  • Dehumidification in cooling mode
Noise Reduction
  • Low-noise fan operation
  • Vibration-dampened compressor

Accessories

Filters
  • Cabin air filter
  • Active charcoal filter
  • Pollen filter
Upgrades
  • Aromatization system
  • Enhanced ionizer
  • Rear-seat entertainment climate control
Tools
  • Diagnostic scanner
  • Refrigerant recharge kit
  • Compressor service tools

Maintenance

Service interval
Every 20,000 miles or 24 months
Service Items
  • Cabin air filter replacement
  • Refrigerant level check
  • Compressor belt inspection
  • Condenser cleaning
  • System pressure test
Maintenance Notes
Use only Mercedes-approved refrigerants and filters

Warranty

Basic
Miles: 50,000
Years: 4
Coverage: Parts and labor
Extended
Miles: 100,000
Years: 7
Coverage: Compressor and condenser
Corrosion
Miles: Unlimited
Years: 10
Coverage: Corrosion-related failures
Emissions
Miles: 70,000
Years: 8
Coverage: Emissions-related components

Production Details

Manufacturer
Mercedes-Benz AG
Manufacturing Process
  • Precision CNC machining
  • Automated assembly
  • Leak testing
Quality Control
Testing: Pressure testing, Thermal cycling, Noise level testing
Certifications: ISO 9001, ISO 14001
Sustainability Practices
  • Recyclable materials
  • Low-emission manufacturing
  • Energy-efficient production
Production Metrics
Units Per Year: 150,000
Defect Rate: 0.01%
Energy Usage: 15 kWh per unit

Service Information for HVAC Service

Maintenance and service requirements specific to the HVAC system

20,000
24
  • Replace cabin air filter
  • Check refrigerant levels
  • Inspect compressor belt
  • Clean condenser fins
  • Test system pressure

Use only Mercedes-approved parts and fluids

40,000
48
  • Replace active charcoal filter
  • Inspect evaporator coils
  • Check electrical connections
  • Test climate control sensors
  • Lubricate compressor components

Requires specialized diagnostic tools

100,000
120
  • Replace compressor belt
  • Flush refrigerant system
  • Inspect and clean all ducts
  • Replace all filters
  • Perform full system diagnostics

Major service requires certified technician

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What are the compatibility requirements for the HVAC system in a 2018-Present Mercedes CLS?

The HVAC system in the 2018-Present Mercedes CLS is designed to be compatible with the vehicle's specific electrical and mechanical architecture. It integrates seamlessly with the MBUX infotainment system and supports dual-zone or tri-zone climate control, depending on the trim. The system uses R1234yf refrigerant, which is standard for modern vehicles. Always ensure replacement parts are OEM or certified equivalents to maintain compatibility and performance.

Q2

What maintenance is required for the HVAC system in a Mercedes CLS?

Regular maintenance for the HVAC system includes inspecting and replacing the cabin air filter every 15,000-20,000 miles or annually. The refrigerant levels should be checked every 30,000 miles, and the system should be inspected for leaks or unusual noises during routine service. Cleaning the evaporator and condenser coils every 2-3 years is recommended to ensure optimal performance and prevent odors.

Q3

How do I replace the cabin air filter in a Mercedes CLS?

To replace the cabin air filter in a Mercedes CLS, locate the filter housing behind the glove compartment. Remove the glove compartment by unscrewing the fasteners and gently pulling it out. Open the filter housing, remove the old filter, and insert the new one, ensuring it is oriented correctly. Reassemble the glove compartment and test the HVAC system to confirm proper airflow.

Q4

What should I do if the HVAC system in my Mercedes CLS is not cooling properly?

If the HVAC system is not cooling, first check the refrigerant levels and look for leaks. Inspect the compressor and condenser for damage or blockages. Ensure the cabin air filter is clean and not obstructing airflow. If the issue persists, use a diagnostic tool to check for error codes in the climate control module. Common fixes include recharging the refrigerant or replacing faulty components like the compressor or expansion valve.

Q5

How can I optimize the performance of the HVAC system in my Mercedes CLS?

To optimize HVAC performance, regularly clean or replace the cabin air filter and ensure the refrigerant is at the correct level. Use the 'Auto' mode to maintain consistent temperature and reduce strain on the system. Park in shaded areas to minimize heat buildup, and periodically clean the condenser and evaporator coils. Avoid overloading the system by setting extreme temperatures, as this can reduce efficiency.

Factory Service Resources

Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.

Mercedes CLS HVAC Service Manual

Coming Soon

Detailed guide covering HVAC system operation, maintenance, and troubleshooting for 2018-Present Mercedes CLS models.

Technical Service Bulletin: HVAC System Update

Coming Soon

Information on software updates and common issues for the HVAC system in 2018-Present Mercedes CLS vehicles.

Mercedes CLS HVAC Parts Catalog

Coming Soon

Comprehensive catalog of OEM HVAC components, including filters, compressors, and sensors for 2018-Present CLS models.

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

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

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