2003 Mercedes-Benz E320 HVAC Electrical Parts

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Keep Your 2003 Mercedes-Benz E320 in Top Shape with Quality HVAC Electrical Parts

Whether you’re repairing or upgrading your HVAC Electrical Part, using high-quality parts is key to keeping your 2003 Mercedes-Benz E320 looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Cabin Air Temperature Sensors and Comfort Control Relay. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Competitive Prices and Extensive Inventory

The average price for a 2003 Mercedes-Benz E320 HVAC Electrical Part at Advance Auto Parts is around $74.74, with a range that starts at $30.49 and goes up to $118.99. With 2 options in stock from one trusted brand, finding the right fit is easy. Popular picks like Multi-Purpose Relay and Cabin Air Temperature Sensor start at just $30.49 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your HVAC Electrical Part, don’t forget to check out other key components like Blower Motor and Related Products and Engine Cooling Parts. At Advance Auto Parts, we’re here to help you keep your 2003 Mercedes-Benz E320 in peak condition, inside and out.

Essential 2003 Mercedes-Benz E320 HVAC Electrical Parts

Carquest Premium – Cabin Air Temperature Sensor (Part No.WTA2076)

Cabin Air Temperature Sensor

from

$118.99
The temperature of various systems must be reported to the engine control module (ECM) as well as other operating system controllers in the vehicle. Coolant temperature, cabin temperature, exhaust temperature and ambient temperature are just a few systems reported by a temperature sensor. The temperature sensor is fed 5 volts by the systems computer, within the sensor housing will be a thermistor, or dropping resistor whose resistance value will change as the temperature surrounding it changes. Changing resistance in the circuit will change the volt signal at the processor indicating the current operating value.

Product Features:
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
  • 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
  • 100% end-of-line tested to ensure accurate signal output providing product reliability, every time.
  • Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
  • Lead frame terminal size and location determined using image dimension measuring system or 3D laser scanner.
  • Application matched components ensures system operation in like new condition.
See More

Carquest Premium – Cabin Air Temperature Sensor (Part No.WTA2085)

Cabin Air Temperature Sensor

from

$95.99
The temperature of various systems must be reported to the engine control module (ECM) as well as other operating system controllers in the vehicle. Coolant temperature, cabin temperature, exhaust temperature and ambient temperature are just a few systems reported by a temperature sensor. The temperature sensor is fed 5 volts by the systems computer, within the sensor housing will be a thermistor, or dropping resistor whose resistance value will change as the temperature surrounding it changes. Changing resistance in the circuit will change the volt signal at the processor indicating the current operating value.

Product Features:
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
  • 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
  • 100% end-of-line tested to ensure accurate signal output providing product reliability, every time.
  • Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
  • Lead frame terminal size and location determined using image dimension measuring system or 3D laser scanner.
  • Application matched components ensures system operation in like new condition.
See More

Carquest Premium – Multi-Purpose Relay (Part No.RAA1803)

Multi-Purpose Relay

from

$30.49
Relays are electrical switches used to convert a small electrical load into a circuit capable of handling a high amperage load. Computers and small switches are not designed to carry the higher amperage requirement of a circuit that may have an electric motor, solenoid, or high amperage lighting fixture. Within a relay are contacts that are controlled with electromagnetism, when the circuit switch commands the device on or off, magnetism will pull or release the contact arm closing or opening the contacts within the relay that carry the voltage.

Product Features:
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
  • Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
  • Where applicable, robust circuit board design increases durability due to heat, shock, and random electro-magnetic pulses (EMP) and power spikes.
  • Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
  • 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
  • 100% end-of-line tested to ensure accurate signal output providing product reliability, every time.
See More

Most Popular Cabin Air Temperature Sensor for 2003 Mercedes-Benz E320s

Enhance your 2003 Mercedes-Benz E320 with this popular Cabin Air Temperature Sensor we have in stock, for $118.99.

Carquest Premium – Cabin Air Temperature Sensor (Part No.WTA2076)

Cabin Air Temperature Sensor

from

$118.99
The temperature of various systems must be reported to the engine control module (ECM) as well as other operating system controllers in the vehicle. Coolant temperature, cabin temperature, exhaust temperature and ambient temperature are just a few systems reported by a temperature sensor. The temperature sensor is fed 5 volts by the systems computer, within the sensor housing will be a thermistor, or dropping resistor whose resistance value will change as the temperature surrounding it changes. Changing resistance in the circuit will change the volt signal at the processor indicating the current operating value.

Product Features:
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
  • 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
  • 100% end-of-line tested to ensure accurate signal output providing product reliability, every time.
  • Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
  • Lead frame terminal size and location determined using image dimension measuring system or 3D laser scanner.
  • Application matched components ensures system operation in like new condition.
See More

Best-Selling 2003 Mercedes-Benz E320 Comfort Control Relay

Upgrade your E320 with our best-selling Comfort Control Relay.

Carquest Premium – Multi-Purpose Relay (Part No.RAA1803)

Multi-Purpose Relay

from

$30.49
Relays are electrical switches used to convert a small electrical load into a circuit capable of handling a high amperage load. Computers and small switches are not designed to carry the higher amperage requirement of a circuit that may have an electric motor, solenoid, or high amperage lighting fixture. Within a relay are contacts that are controlled with electromagnetism, when the circuit switch commands the device on or off, magnetism will pull or release the contact arm closing or opening the contacts within the relay that carry the voltage.

Product Features:
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
  • Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
  • Where applicable, robust circuit board design increases durability due to heat, shock, and random electro-magnetic pulses (EMP) and power spikes.
  • Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
  • 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
  • 100% end-of-line tested to ensure accurate signal output providing product reliability, every time.
See More

FAQs for 2003 Mercedes-Benz E320 HVAC Electrical Parts

What are the best-selling HVAC Electrical Parts for 2003 Mercedes-Benz E320s?

Out of 2 HVAC Electrical Parts that fit 2003 Mercedes-Benz E320s, the following parts are the top sellers:

What’s the price range for 2003 Mercedes-Benz E320 HVAC Electrical Parts?

The prices of HVAC Electrical Parts for the 2003 Mercedes-Benz E320 range from $30.49 up to $118.99 for the most premium parts.

What is the average price of an HVAC Electrical Part for a 2003 Mercedes-Benz E320?

The average price for HVAC Electrical Parts for the 2003 Mercedes-Benz E320 is $74.74. Keep in mind the variety of part types within our HVAC Electrical Part category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell HVAC Electrical Parts for other Mercedes-Benz E320 model years?

Yes, we carry HVAC Electrical Parts for 12 model years of Mercedes-Benz E320s between 1996 and 2009. The following model years are the most popular for HVAC Electrical Part purchases: 2009, 2008, 2007, 2006, 2005, 2004, 2002, 2001, and 2000.

What are the cheapest HVAC Electrical Parts for my 2003 Mercedes-Benz E320?

The cheapest 2003 Mercedes-Benz E320 HVAC Electrical Parts we carry are:

Does Advance Auto Parts sell HVAC Electrical Parts for any other 2003 Mercedes-Benz models?

Yes. We stock HVAC Electrical Parts for 21 other popular 2003 Mercedes-Benz models. Some of the most popular are 2003 S600 HVAC Electrical Parts, 2003 E500 HVAC Electrical Parts, 2003 ML350 HVAC Electrical Parts, 2003 ML320 HVAC Electrical Parts, and 2003 E55 AMG HVAC Electrical Parts.

What types of HVAC Electrical Parts do you sell for my 2003 Mercedes-Benz E320?

As of 3/1/26, these are some of the most in-demand types of HVAC Electrical Parts for a 2003 Mercedes-Benz E320:

Can I get help with 2003 Mercedes-Benz E320 HVAC Electrical Part orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Mercedes-Benz HVAC Electrical Parts and more.

What is your return policy for Mercedes-Benz E320 HVAC Electrical Parts?

Advance Auto Parts keeps returns simple. For new Mercedes-Benz E320 HVAC Electrical Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.