Melanie Reiff
Updated on Aug 11, 2022
A mechanic can replace your heater blower motor resistor, which changes the speed of airflow from the blower motor, if the resistor is faulty or dies. You’ll need to schedule this service if your fan is stuck on high or there is no air coming from the vents in your dashboard.
If you can’t regulate the airflow in your car, you’re in for an unpleasant ride. That’s why the price comparison and car insurance broker app Jerry has compiled everything you need to know about replacing the heater blower motor resistor in your car. We’ll break down what it is, how to replace it, and when it should be done.
The exact cost varies between different Mercedes-benz models. For example, newer vehicle models are usually made with more expensive materials, so recent or high-end models will cost more, especially if your service requires a part replacement. Use the table below to estimate the cost for your own vehicle.

What is a heater blower motor resistor replacement?

During this service, the mechanic will remove the glove box door to inspect the electrical circuits underneath the dashboard in the heater/air conditioning compartment to confirm a faulty resistor and replace it.
A heater blower motor resistor replacement service can cost between $149 and $494 depending on the car you drive and the cost of labor.

How to replace a heater blower motor resistor

Replacing a heater blower motor resistor is a standard service. Here are the steps your mechanic will usually complete replacing the faulty resistor:
  • **Remove **the glove box door.
  • **Disconnect **the wiring harness and unbolt the screws.
  • **Remove **faulty heater blower motor resistor.
  • **Install **the new heater blower motor resistor.
  • **Tighten **and **reattach **wiring harness,
  • **Reinstall **the glove box door.

When do I need to replace my heater blower motor resistor?

You’ll want to replace your heater blower motor resistor if your fan is stuck on one speed or there is no air coming from the vents.
You can put off replacing your heater blower motor resistor for as long as you are willing to sacrifice maintaining a comfortable temperature in your car. Without a functioning resistor, you’ll sweat in the summer and shiver in the winter.

How to find cheap car insurance

Car repairs are an expensive part of owning a car. Find cheap car insurance with Jerry and cut the costs of car ownership.
A licensed broker that offers end-to-end support, the Jerry app gathers affordable quotes, helps you switch plans, and will even help you cancel your old policy. No long forms. No calling around. No hard work. Just savings. The average Jerry user saves $887 a year on car insurance!
Keep in mind that your location is another factor that determines the final cost of repairs. Areas with higher cost of living will usually have more expensive car repair services, especially if there’s less local competition. Check out the table below for an estimate of what Mercedes-benz drivers pay in different cities.
Jerry doesn’t just offer fair price repair estimates for Mercedes-benz drivers! Our team of writers has collected everything you need to know for every car. Here’s how much the repair costs for some popular cars:
CarTotal Cost EstimateParts CostLabor CostAverage Dealer PriceEstimated Service Duration
K10 Suburban
Custom Cruiser
The cost of repairs might vary depending on which Mercedes-benz you drive, but there’s an easy way to save money for the services you need! Just download the Jerry app for help lowering your insurance premiums. In less than 45 seconds, Jerry collects all of your information from your existing insurer. Choose from competitive quotes from top insurance companies and Jerry takes care of the rest—securing your new policy and helping you cancel your old one upon request.
With an average annual savings of $887, Jerry can help you free up funds for the repairs your Mercedes-benz’s needs.