2018 Mercedes-Benz S65 AMG Windshield Wipers Aren't Working

Windshield Wiper Malfunctions in 2018 Mercedes-Benz S65 AMG and Solutions

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Reviewed by
Bo Fader
Written by RepairPal Car Genius
Updated January 14, 2025
0%
75% chance it's the
Wiper Motor
0%
25% chance it's the
Switch
The most common reasons a 2018 Mercedes-Benz S65 AMG windshield wipers aren't working are broken wiper motor and issues with the switch.
  • Wiper Motor: A faulty wiper motor or a bad electrical connection can result in intermittent or non-functioning windshield wipers.
  • Switch: A faulty switch can result in intermittent or complete failure of the electrical component it controls, leading to malfunctioning systems.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

How much does it cost to fix a 2018 Mercedes-Benz S65 AMG windshield wipers aren't working?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

A failed windshield wiper motor will do one of two things in the event of failure. First, it can intermittently work, meaning when the wiper switch is turned on, the windshield wipers may activate, and run for a random amount of time. This may happen at random, or change with a bump. Lastly, the windshield wipers could show no signs of activity, indicating motor failure.

The moment water touches the windshield, you know if you need new windshield wiper blades. If your wiper blades are torn, cracked, hard, or brittle, it is time for replacement. Wipers should also be replaced if the wiper blades only smear water around, seem to make a mess, streak the windshield, and miss large patches. If you are unhappy with the current wiper blades on your vehicle, this is a very economical change to make.

Windshield wiper arms will be replaced mainly for aesthetic reasons or damage. If the windshield arms become bent or rusted, the windshield wipers may not contact the windshield at the proper angle, or there may be no contact at all. Also, the sun will take a toll on these parts after years of use, and fading or clear coat peeling will result, not to mention rust.

What are the steps to diagnose the windshield wiper issue on a 2018 Mercedes-Benz S65 AMG?

To effectively diagnose a windshield wiper issue on a 2018 Mercedes-Benz S65 AMG, start with a systematic approach that prioritizes simpler checks before moving on to more complex diagnostics. Begin by inspecting the wiper blades for any signs of wear or damage, as this is often the most straightforward fix. Next, examine the wiper arms to ensure they are securely attached and not loose, which can hinder performance. If the blades and arms appear fine, listen for unusual noises from the wiper motor when activated, as this could indicate a malfunction. Following this, test the wiper switch across its various settings to confirm it is functioning properly. Don’t forget to check the fuse associated with the wiper system, as a blown fuse can easily disrupt operation. Additionally, inspect the wiring for any signs of damage or corrosion that could affect connectivity. If these initial checks do not reveal the issue, consider utilizing diagnostic tools to further investigate the problem. This methodical approach not only helps in identifying the issue efficiently but also saves time and resources in the troubleshooting process.

What are the common problems that could cause the windshield wipers to stop working on a 2018 Mercedes-Benz S65 AMG?

When dealing with non-functional windshield wipers on a 2018 Mercedes-Benz S65 AMG, it's crucial to understand the common problems that may be at play. One of the first things to check is the fuse associated with the wiper system, as a blown fuse can easily disrupt their operation. If the fuse is intact, the next step is to inspect the wiper motor, which could be faulty and prevent the wipers from moving. Additionally, worn wiper blades can significantly impair visibility, so ensuring they are in good condition is essential. Another potential issue is the wiper linkage; if it is broken or damaged, the wipers may not function correctly. Lastly, consider any electrical issues, such as wiring problems or a malfunctioning switch, which can also lead to wiper failure. By systematically diagnosing these common issues, DIYers can effectively restore the functionality of their windshield wipers.

How urgent is it to repair the non-functioning windshield wipers on a 2018 Mercedes-Benz S65 AMG?

When it comes to the urgency of repairing non-functioning windshield wipers on a 2018 Mercedes-Benz S65 AMG, the implications are significant. First and foremost, visibility is paramount; without effective wipers, your ability to see the road during rain or snow is severely compromised, which can lead to dangerous driving conditions. This lack of visibility not only endangers you but also puts other road users at risk, making it a pressing safety concern. Additionally, operating a vehicle with faulty wipers may violate local traffic laws, exposing you to potential fines or legal repercussions. Beyond immediate safety and legal issues, neglecting this repair can result in further damage to the wiper system or even the windshield itself, leading to more extensive and costly repairs in the future. Therefore, addressing the malfunction of your windshield wipers should be a top priority to ensure safe driving and compliance with regulations.

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