Mercedes-Benz CLA45 AMG Windshield Wipers Aren't Working

Common Causes of Windshield Wiper Malfunctions in Your Mercedes-Benz CLA45 AMG and How to Fix Them

Find Repair Location
Reviewed by
Andrew Hajjar
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 CLA45 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 CLA45 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 Windshield Wiper Issues in a Mercedes-Benz CLA45 AMG

When troubleshooting windshield wiper issues in your Mercedes-Benz CLA45 AMG, it's essential to adopt a systematic diagnostic approach. Start with the simplest solutions, such as checking the windshield wiper fuse, which is often the culprit behind wiper malfunctions. This straightforward task can be done at home and may save you time and effort. If the wipers remain unresponsive, inspect the wiper motor for internal electrical faults, as a malfunctioning motor may require replacement. Next, examine the wiper arms for any signs of bending or damage; ensuring they are securely attached and in good condition is crucial for optimal performance. Additionally, if you're facing problems with the washer function, don't forget to check the relevant fuses in both the footwell and engine fuse boxes. By following this methodical approach, you can effectively diagnose and address windshield wiper issues, ensuring your vehicle remains safe and functional on the road.

What to Check When Windshield Wipers Aren't Working on a Mercedes-Benz CLA45 AMG?

When your Mercedes-Benz CLA45 AMG's windshield wipers fail to operate, it's essential to systematically address common problems that could be causing the issue. Start by checking the windshield wiper fuse, as a blown fuse is often the simplest and most frequent culprit behind wiper malfunctions. If the fuse is intact, inspect the wiper blades for signs of wear, such as brittleness or damage, which can prevent them from making proper contact with the windshield. Next, examine the wiper motor; if the blades are completely stationary, a faulty motor may be the reason. Additionally, assess the wiper linkage, as any disconnections or damage here can hinder the movement of the wipers. If power is not reaching the wipers, this could indicate an underlying electrical issue that requires further investigation. Lastly, if the wipers operate erratically, recalibrating them might resolve the problem. By methodically checking these components, you can effectively troubleshoot and potentially fix the wiper issue on your CLA45 AMG.

Why Are the Windshield Wipers Not Working in a Mercedes-Benz CLA45 AMG?

When the windshield wipers in your Mercedes-Benz CLA45 AMG fail to operate, it is crucial to address the issue promptly, as neglecting it can lead to dangerous driving conditions, especially in inclement weather. The malfunction could stem from various sources, including a faulty wiper motor, a defective switch, or even a blown fuse. Each of these components plays a vital role in ensuring your visibility on the road, and any failure can significantly impair your ability to drive safely. Additionally, if the washer system is also malfunctioning, it can further compromise your windshield maintenance, leading to potential visibility hazards. Therefore, it is essential to conduct a thorough inspection of the electrical components and mechanical parts involved in the wiper system. By diagnosing the problem early, you not only enhance your safety but also prevent the risk of incurring more extensive and costly repairs down the line.

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.