Mercedes-Benz CLA35 AMG Windshield Wipers Aren't Working

Common Causes of Windshield Wiper Malfunctions in Your Mercedes-Benz CLA35 AMG and How to Fix Them

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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 Mercedes-Benz CLA35 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 Mercedes-Benz CLA35 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.

Troubleshooting Non-Functional Windshield Wipers in a Mercedes-Benz CLA35 AMG

When faced with non-functional windshield wipers in your Mercedes-Benz CLA35 AMG, it's essential to adopt a systematic diagnostic approach. Begin by checking the rain sensor and the wipers themselves, as a defective sensor can lead to erratic wiper behavior. If the wipers are not operating correctly, recalibrating them is a straightforward task that can often resolve the issue in about 15 minutes. Next, inspect the wiper blades for any signs of wear or damage, as compromised blades can cause streaking or skipping during operation. If the wipers have completely seized, the wiper motor may be the culprit; over time, these motors can wear out and require replacement. Additionally, don’t overlook the importance of verifying the fuses and relays associated with the wiper system, as blown fuses or faulty relays can disrupt functionality. If these initial troubleshooting steps do not yield results, it may be time to consult a professional mechanic or dealership for a more in-depth diagnosis. By following this structured approach, you can efficiently identify and resolve issues with your windshield wipers, ensuring clear visibility and safety on the road.

Troubleshooting Windshield Wiper Issues in a Mercedes-Benz CLA35 AMG

When troubleshooting windshield wiper issues in your Mercedes-Benz CLA35 AMG, it's essential to recognize the common problems that may arise. One frequent issue is a blown fuse, which can halt wiper operation entirely. If the wipers are streaking or not clearing the windshield effectively, worn or damaged wiper blades are often to blame and should be replaced. In cases where the wipers are completely unresponsive, an internal electrical fault in the wiper motor may be the culprit, necessitating a motor replacement. Additionally, inspect the wiper arms for any signs of bending or damage, as these can hinder performance. Unusual noises during operation may indicate problems within the wiper system components, including the motor and linkage, which should be thoroughly examined. By understanding these common failure modes, you can systematically address and resolve windshield wiper issues, ensuring optimal visibility and safety while driving.

Why Are the Windshield Wipers Not Working on a Mercedes-Benz CLA35 AMG?

When the windshield wipers on your Mercedes-Benz CLA35 AMG fail to operate, it’s crucial to address the issue without delay. Ignoring malfunctioning wipers can severely impair your visibility during rain or adverse weather conditions, increasing the risk of accidents. Start by checking the windshield wiper fuse, as a blown fuse is a common culprit that can easily be replaced. Additionally, inspect the wiper blades for wear and tear; old blades can become stiff and ineffective, leading to further complications. If the wipers are still unresponsive, investigate the windshield washer system, including the fluid pump, as a lack of washer fluid can hinder wiper performance. Furthermore, ensure that the combination wiper/turn signal switch is functioning correctly, as issues here can disrupt the entire wiper system. Lastly, verify that the hood is securely closed, as some models have safety features that prevent wiper operation if the hood is ajar. By diagnosing and addressing these issues promptly, you can maintain optimal visibility and safety while driving your CLA35 AMG.

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Mercedes-Benz CLA35 AMG Windshield Wipers Fix Guide