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Design 911 Design 911 supply Porsche parts, Porsche spares and Porsche accessories, to both retail and to the trade. Our Porsche product and accessory range includes brakes, exhausts, tyres, wheels and Porsche panels and interiors. https://design91.uk/images/schemaLogo.png https://design91.uk/images/schemaLogo.png +443456003478 https://design91.uk Facebook Instagram

Climate Control

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Special Offer
I12
Product Information
Product Information
Rennline billet aluminium HVAC control knob.

rennline

Fits:
Porsche 911/912/930 1972-89
Porsche 914 all

Rennline's billet aluminium heater control knobs are the perfect inexpensive interior upgrade for any 911/914. Factory heater control knobs become faded, cracked, and/or unsightly after years of exposure to UV light. Rennline billet knobs are machined from 6061 aluminium and are available in red or black anodized finishes for a durable, long lasting appearance. Simply pull off your old knob, and tap ours on, installation is literally a snap.

Note: HVAC Controls not included.
Special Offer
I29
Product Information
Product Information
Billet HVAC control panel.

rennline

Fits:
Porsche 65-89 911/912/930

The Rennline HVAC control panel is CNC milled from a billet aluminum block and anodized for a classic and elegant dash upgrade. Whether you're trying to clean up the dash on your early 911, or backdating the dash on your G-body car, these HVAC controls are sure to do the job. Featuring simplified markings and updated micro LED indicators, the unit pairs very well with our I12 Billet HVAC Knobs (not included but available separately). OEM plastic units are prone to scratching and fading, while these units are proven to stand the test of time. Installs easily to factory control mechanism.

Note: If installing in a 74-89 car, the dash must be backdated as these controls are smaller than the later controls.
DISPLAYING 17 to 18 (of 18 products)
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About Climate Control

Porsche Climate Control Systems & Components | Precision Cabin Comfort & Temperature Management

The climate control system in your Porsche maintains perfect cabin temperature and air quality by automatically regulating heating, cooling, and ventilation. Using a combination of sensors, actuators, and control units, it adjusts airflow and temperature to create a consistent and comfortable driving environment — regardless of outside conditions.

At Design911, we offer premium climate control panels, modules, sensors, and actuators designed to meet or exceed original performance standards. Built using advanced materials and precision electronic calibration, our components restore seamless climate management, accurate temperature regulation, and reliable HVAC functionality for all Porsche models.

Whether you’re repairing a faulty control panel, replacing a temperature sensor, or restoring full automatic climate functionality, our Porsche climate control parts deliver the reliability, precision, and comfort you expect.

What Does the Climate Control System Do?

The climate control system automatically manages cabin heating, cooling, and ventilation by regulating air temperature, fan speed, and airflow direction.

Core Functions:

  • Monitors and adjusts cabin and exterior temperature balance.
  • Controls airflow through the heater core and A/C evaporator.
  • Regulates humidity and defogging for optimal visibility.
  • Automatically maintains selected temperature settings.
  • Provides driver and passenger comfort through precise control modules.

A well-functioning system ensures comfort and safety, keeping cabin conditions ideal year-round.

Why Do Climate Control Systems Fail or Malfunction?

Because the system integrates electronic, mechanical, and air distribution components, it is vulnerable to wear, contamination, or electrical failure over time.

Common Causes of Failure Include:

  • Faulty control panels or digital interfaces.
  • Damaged temperature or sunlight sensors.
  • Malfunctioning air distribution flaps or servo motors.
  • Electrical faults in actuators or wiring harnesses.
  • Blocked ventilation ducts or faulty blower motors.

Symptoms of a failing system include inconsistent cabin temperature, non-responsive controls, fogged windows, or unbalanced airflow between zones.

Why Replace Your Porsche Climate Control Components?

Replacing or upgrading malfunctioning climate control components restores reliable temperature management and consistent comfort. High-quality parts ensure proper system communication, energy efficiency, and long-term reliability.

Key Benefits:

  • Restores smooth, accurate temperature regulation.
  • Improves air distribution and cabin comfort.
  • Ensures A/C and heating systems function efficiently.
  • Reduces condensation and prevents window fogging.
  • Compatible with Porsche 911, Cayman, Boxster, Panamera, Macan, and classic models.
  • Ideal for servicing, diagnostics, or system restoration.

Properly functioning climate control enhances both comfort and safety by maintaining clear visibility and stable interior conditions.

Highlights

  • Precision-engineered Porsche climate control modules and sensors.
  • Advanced electronics for consistent temperature management.
  • Designed for accurate, responsive operation and long lifespan.
  • Suitable for single- and dual-zone climate systems.
  • Perfect for repair, maintenance, and restoration projects.
  • Direct-fit replacements for modern and classic Porsche models.       

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