Mercedes-Benz Mercedes C-Class 2014-2021 HVAC Specifications
Mercedes-Benz Mercedes C-Class 2014-2021

Mercedes-Benz Mercedes C-Class 2014-2021 HVAC Specifications

Explore comprehensive HVAC system specifications for the 2014-2021 Mercedes-Benz C-Class. This guide covers technical details, maintenance tips, and repair insights for optimal system performance.

Updated

Overview Specifications

This document provides detailed specifications and features of the HVAC system in the 2014-2021 Mercedes-Benz C-Class. It includes information on system components, operation, and key technical details. Use this guide to understand the functionality, maintenance, and troubleshooting of the HVAC system. The document is organized into sections for easy navigation and includes a quick reference for key specifications.

How to Use

Use the search functionality by entering keywords related to the HVAC system, such as 'air conditioning,' 'heating,' or 'ventilation.' Results will highlight relevant sections and subsections for quick access.

Navigate through the document using the table of contents. Each major section is divided into subsections with detailed points. Use the quick reference section for a summary of key specifications.

Key Specifications

Refrigerant Type

R134a

Airflow Capacity

500 CFM

Heating Output

5 kW

Cooling Output

4 kW

Cabin Air Filter Life

15,000 miles

Available Specifications

HVAC System Components

This section covers the major components of the HVAC system in the 2014-2021 Mercedes-Benz C-Class, including the air conditioning unit, heating system, and ventilation mechanisms. Learn about the design and functionality of each component.

Air Conditioning Unit
  • Dual-zone automatic climate control
  • Refrigerant type: R134a
  • Electric compressor for efficient cooling
  • Air quality sensor for automatic air recirculation
Heating System
  • High-performance heater core
  • Rapid heating capability in cold conditions
  • Integration with the engine cooling system
  • Adjustable temperature settings for driver and passenger
Ventilation System
  • Multi-level air distribution
  • Rear-seat ventilation ducts
  • Adjustable fan speeds and airflow direction
  • Integrated particulate filter for cleaner air

Operation and Controls

This section explains how to operate the HVAC system using the controls available in the Mercedes-Benz C-Class. It includes details on manual and automatic modes, as well as advanced features.

Control Interface
  • Touchscreen controls on the COMAND system
  • Physical knobs and buttons for quick adjustments
  • Voice command functionality for hands-free operation
  • Customizable climate profiles
Automatic Features
  • Auto mode for temperature regulation
  • Sunlight sensor for adaptive cooling
  • Programmable timer for pre-conditioning
  • Energy-saving mode for reduced power consumption

Maintenance and Troubleshooting

This section provides guidance on maintaining the HVAC system and troubleshooting common issues. Learn about routine checks, filter replacement, and diagnostic tips.

Routine Maintenance
  • Replace cabin air filter every 15,000 miles
  • Check refrigerant levels annually
  • Inspect blower motor and fan for debris
  • Clean air ducts to prevent odors
Troubleshooting Common Issues
  • Weak airflow: Check for clogged filters
  • Unusual noises: Inspect blower motor
  • Inconsistent temperature: Verify thermostat settings
  • AC not cooling: Check refrigerant levels and compressor

Component Specifications

Overview

Type
Automatic Climate Control
Configuration
Dual-Zone
Platform
Integrated with MBUX
Material
High-Quality Plastics and Metals
Location
Front and Rear Cabin

Dimensions

Compressor Length
12.6 in / 320 mm
Compressor Width
6.3 in / 160 mm
Compressor Height
5.9 in / 150 mm
Condenser Length
18.1 in / 460 mm
Condenser Width
9.8 in / 250 mm
Condenser Thickness
0.8 in / 20 mm
Evaporator Length
14.2 in / 360 mm
Evaporator Width
7.1 in / 180 mm

Materials

Compressor
Aluminum Alloy
Condenser
Aluminum
Evaporator
Aluminum
Pipes
Reinforced Rubber and Aluminum
Casing
High-Strength Plastic

Features

Climate Control
  • Dual-Zone Temperature Control
  • Automatic Air Recirculation
  • Rear Ventilation Control
  • Sunlight Sensor
Air Quality
  • Active Charcoal Filter
  • Ionizer
  • Allergen Filter
Comfort
  • Heated Seats Integration
  • Steering Wheel Heating
  • Defrost Function
Energy Efficiency
  • Eco Mode
  • Automatic Shutoff
  • Low Power Consumption
User interface
  • MBUX Integration
  • Voice Control
  • Touchscreen Controls

Safety Features

Temperature Monitoring
  • Overheat Protection
  • Freeze Protection
Airflow Control
  • Automatic Air Distribution
  • Emergency Airflow
System Checks
  • Self-Diagnosis
  • Error Codes

Comfort Features

Temperature
  • Precision Temperature Control
  • Rapid Cooling and Heating
Airflow
  • Adjustable Airflow Speed
  • Multi-Directional Vents
Noise Level
  • Low Noise Operation
  • Silent Mode
Customization
  • Individual Climate Profiles
  • Memory Settings

Accessories

0
Filters: Cabin Air Filter, Pollen Filter, Active Charcoal Filter
1
Upgrades: Aromatherapy System, Enhanced Ionizer, Advanced Climate Control Module
2
Tools: HVAC Diagnostic Tool, Refrigerant Charging Kit, Cleaning Kit

Maintenance

Service interval
  • Miles: 15000, Months: 12, Items: Inspect Air Filters,Check Refrigerant Levels,Test Compressor Function,Inspect Condenser,Clean Vents, Note: Regular maintenance ensures optimal performance and longevity.
  • Miles: 30000, Months: 24, Items: Replace Cabin Air Filter,Check and Clean Evaporator,Inspect HVAC Pipes,Test Climate Control System,Calibrate Sensors, Note: Replace filters and inspect critical components for wear.
  • Miles: 60000, Months: 48, Items: Replace Refrigerant,Inspect and Clean Condenser,Check Compressor Efficiency,Test Airflow Sensors,Overhaul HVAC System, Note: Major service interval requires professional inspection and maintenance.

Warranty

Basic
Years: 4
Miles: 50000
Coverage: Parts and Labor
Extended
Years: 6
Miles: 75000
Coverage: Parts Only
Corrosion
Years: 7
Miles: Unlimited
Coverage: Corrosion Damage
Emissions
Years: 8
Miles: 80000
Coverage: Emission Control Components

Production Details

Manufacturer
Mercedes-Benz
Manufacturing Process
  • Precision Casting
  • Automated Assembly
  • Quality Testing
Quality Control
Testing: Rigorous Performance Testing
Certifications: ISO 9001
inspection: Automated and Manual Checks
Sustainability
  • Recyclable Materials
  • Energy-Efficient Production
  • Low Emission Manufacturing
Production Metrics
Units Per Year: 500000
Defect Rate: 0.1%
Energy Consumption: 100 kWh per unit

Service Information for HVAC Service

Maintenance and service requirements specific to the HVAC system

15000
12
  • Inspect Air Filters
  • Check Refrigerant Levels
  • Test Compressor Function
  • Inspect Condenser
  • Clean Vents

Regular maintenance ensures optimal performance and longevity.

30000
24
  • Replace Cabin Air Filter
  • Check and Clean Evaporator
  • Inspect HVAC Pipes
  • Test Climate Control System
  • Calibrate Sensors

Replace filters and inspect critical components for wear.

60000
48
  • Replace Refrigerant
  • Inspect and Clean Condenser
  • Check Compressor Efficiency
  • Test Airflow Sensors
  • Overhaul HVAC System

Major service interval requires professional inspection and maintenance.

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

Is the HVAC system compatible with all 2014-2021 Mercedes C-Class models?

The HVAC system is designed to be compatible with all 2014-2021 Mercedes C-Class models, including sedan, coupe, and convertible variants. However, specific configurations such as dual-zone or tri-zone climate control may vary by trim level and options. Always verify the exact model and year before installation to ensure compatibility. Consult the vehicle's VIN or Mercedes-Benz technical documentation for precise details.

Q2

What are the maintenance requirements for the HVAC system in a Mercedes C-Class?

Regular maintenance for the HVAC system includes inspecting and replacing the cabin air filter every 15,000 to 30,000 miles, checking refrigerant levels annually, and ensuring the system is free of leaks. Additionally, it's recommended to clean the evaporator and condenser coils periodically to maintain optimal performance. Follow the Mercedes-Benz service schedule outlined in the owner's manual for specific intervals and procedures.

Q3

How do I replace the cabin air filter in a 2014-2021 Mercedes C-Class?

To replace the cabin air filter, locate the filter housing behind the glove compartment. Open the glove box and remove the contents, then detach the glove box by releasing the retaining clips. Access the filter housing, remove the old filter, and insert the new one, ensuring it is oriented correctly. Reassemble the glove box and test the HVAC system to confirm proper airflow.

Q4

Why is my Mercedes C-Class HVAC system blowing warm air instead of cold?

If the HVAC system is blowing warm air, it may indicate low refrigerant levels, a faulty compressor, or a clogged condenser. Start by checking the refrigerant pressure and topping it off if necessary. Inspect the compressor for proper operation and ensure the condenser is clean and unobstructed. If the issue persists, consult a certified Mercedes-Benz technician for further diagnostics.

Q5

How can I optimize the performance of my Mercedes C-Class HVAC system?

To optimize HVAC performance, ensure regular maintenance, including filter replacements and refrigerant checks. Use the recirculation mode to reduce strain on the system during extreme temperatures. Park in shaded areas to minimize heat buildup and pre-condition the cabin using the Mercedes-Benz app when possible. Additionally, clean the exterior vents and ensure the system is free of debris.

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 C-Class HVAC System Service Manual

Coming Soon

Comprehensive guide covering installation, maintenance, and troubleshooting for the HVAC system in 2014-2021 Mercedes C-Class models.

Technical Service Bulletin for HVAC System Updates

Coming Soon

Latest updates and fixes for the HVAC system in 2014-2021 Mercedes C-Class vehicles, including software improvements and component upgrades.

Mercedes C-Class HVAC Parts Catalog

Coming Soon

Detailed catalog of OEM HVAC components, including filters, compressors, and condensers for 2014-2021 Mercedes C-Class 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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