Genuine 1638690508 Washer Fluid Reservoir Cap

Reliable Washer Fluid Reservoir Cap for Mercedes-Benz ML Models

This Genuine washer fluid reservoir cap is designed specifically for select Mercedes-Benz ML series vehicles, including the ML55 AMG, ML320, ML350, ML430, and ML500. Engineered to maintain proper sealing and prevent fluid contamination, this cap ensures your washer system functions effectively.

• Genuine Mercedes-Benz replacement part number 1638690508
• Compatible with Mercedes-Benz ML55 AMG, ML320, ML350, ML430, and ML500 models
• Durable construction to resist wear and environmental exposure
• Ensures a secure seal to prevent washer fluid leaks and contamination
• Easy to install without special tools

Product Details and Compatibility

The washer fluid reservoir cap with part number 1638690508 is an OEM-quality component designed to fit multiple Mercedes-Benz ML series vehicles. This cap replaces the original part to maintain the integrity of the washer fluid system. Proper sealing is critical to prevent dirt, debris, and moisture from entering the reservoir, which can affect washer performance. Compatible with the ML55 AMG, ML320, ML350, ML430, and ML500, this cap meets factory specifications for fit and function.

Purpose and Common Issues Addressed

• Prevents washer fluid leaks from the reservoir
• Protects washer fluid from contamination by dirt and debris
• Maintains proper pressure within the washer fluid system
• Helps avoid washer pump damage caused by fluid loss
• Ensures consistent windshield cleaning performance

Installation Notes and Tips

Installation of the Genuine washer fluid reservoir cap 1638690508 is straightforward and requires no special tools. Simply remove the old cap by twisting it off the reservoir neck and replace it with the new cap, ensuring it is securely tightened to prevent leaks. Inspect the reservoir neck for any damage or debris before installation to ensure a proper seal.

Quality Assurance and Warranty

This Genuine Mercedes-Benz washer fluid reservoir cap is manufactured to meet OEM standards for quality and durability. While specific warranty details may vary, Genuine parts typically come with a limited warranty covering defects in material and workmanship. Using this OEM replacement part helps maintain the reliability and performance of your Mercedes-Benz ML series washer system.