2011 Mercedes-Benz C300 Windshield Wipers Aren't Working

Fix Windshield Wiper Issues on 2011 Mercedes-Benz C300

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 2011 Mercedes-Benz C300 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 2011 Mercedes-Benz C300 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 initial diagnostic steps to take when the windshield wipers on a 2011 Mercedes-Benz C300 aren't working?

When faced with non-functioning windshield wipers on a 2011 Mercedes-Benz C300, it's essential to adopt a methodical diagnostic approach. Begin by checking the fuse associated with the wipers, as a blown fuse is a common and easily fixable issue. If the fuse is intact, proceed to inspect the wiper motor for any signs of malfunction, as a faulty motor can prevent the wipers from operating. Next, examine the wiper linkage, which connects the motor to the wiper arms; any damage or disconnection here can halt wiper movement. Additionally, assess the wiper switch, as a defective switch may be the culprit behind the wipers' failure to engage. Finally, don't overlook the condition of the wiper blades themselves; worn or damaged blades can also lead to ineffective wiper performance. By following this structured approach, you can efficiently identify and address the root cause of the windshield wiper issue, ensuring your vehicle remains safe and functional.

What are the common problems that could cause the windshield wipers to stop working on a 2011 Mercedes-Benz C300?

When dealing with windshield wiper issues on a 2011 Mercedes-Benz C300, it's essential to understand the common problems that may arise. A malfunctioning wiper motor is often at the forefront, as it can fail due to wear or electrical issues. Additionally, the wiper switch itself may be faulty, preventing the wipers from responding to commands. Another critical area to inspect is the windshield washer system; clogged spray nozzles or a leaking hose can disrupt normal operation, while a blown fuse can halt functionality altogether. It's advisable to check the fuse first, ensuring it is securely fitted in the fuse box to avoid intermittent operation. If the wipers operate sporadically, restarting the vehicle might provide a temporary fix, but this points to a deeper issue that needs addressing. Other potential culprits include problems with the steering column control module or the front SAM (Signal Acquisition Module), which can complicate the diagnosis. By systematically checking these components, DIYers can effectively identify and resolve the underlying issues affecting their windshield wipers.

How urgent is it to repair the non-functioning windshield wipers on a 2011 Mercedes-Benz C300?

When it comes to repairing non-functioning windshield wipers on a 2011 Mercedes-Benz C300, the urgency cannot be overstated. Windshield wipers are vital for maintaining clear visibility, especially during rain or snow, and their failure can significantly compromise safety on the road. Driving without properly functioning wipers not only increases the risk of accidents but may also lead to legal repercussions, as many jurisdictions require all essential vehicle components to be operational. Moreover, neglecting this issue can result in more extensive damage; what might start as a simple fix, such as a blown fuse or clogged nozzles, could escalate into a costly repair if left unattended. Lastly, having reliable wipers enhances the overall driving experience, allowing for comfort and confidence in unpredictable weather conditions. Therefore, addressing the malfunction promptly is crucial for safety, compliance, and convenience.

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.