MTC 1313 / 61-31-1-369-343
Instruction Manual
MTC 1313/61-31-1-369-343 Washer Reservoir Plug
Model: 1313 / 61-31-1-369-343 | Brand: MTC
Introduction
This manual provides essential information for the proper installation, operation, and maintenance of your MTC 1313/61-31-1-369-343 Washer Reservoir Plug. This high-quality replacement part is engineered from durable materials to ensure longevity and reliable performance in BMW models.
What's in the Box:
- 1 x Washer Reservoir Plug

Image: Top view of the MTC Washer Reservoir Plug, showing its cylindrical shape and opening.

Image: Angled view of the MTC Washer Reservoir Plug, highlighting its tapered design and sealing surface.
Setup and Installation
The MTC Washer Reservoir Plug is designed as a direct OEM replacement. Proper installation ensures a secure seal and prevents fluid leakage from the washer fluid reservoir.
Installation Steps:
- Preparation: Ensure the vehicle's engine is off and cool. Locate the washer fluid reservoir, typically under the hood.
- Remove Old Plug (if applicable): Carefully remove the existing plug from the washer fluid reservoir. Be prepared for any residual fluid to drain.
- Clean Area: Clean the opening of the reservoir where the new plug will be inserted to ensure a proper seal. Remove any dirt, debris, or old gasket material.
- Install New Plug: Insert the MTC Washer Reservoir Plug firmly into the reservoir opening. Apply even pressure to ensure it seats correctly and creates a tight seal.
- Verify Fit: Gently tug on the plug to confirm it is securely in place and does not easily dislodge.
- Test: After installation, fill the washer fluid reservoir and check for any leaks around the newly installed plug.
Operating Principles
The washer reservoir plug functions as a critical sealing component for the vehicle's windshield washer fluid reservoir. Its primary role is to prevent the leakage of washer fluid and to protect the reservoir's contents from external contaminants such as dirt, dust, and debris. By maintaining a secure seal, it ensures the washer system operates efficiently, providing fluid to the windshield when activated.
Maintenance
The MTC Washer Reservoir Plug requires minimal maintenance. Regular inspection is recommended to ensure its continued effectiveness.
- Visual Inspection: Periodically check the plug for signs of wear, cracking, or damage. Ensure it remains firmly seated in the reservoir opening.
- Leak Check: After refilling the washer fluid, visually inspect the area around the plug for any signs of fluid leakage.
- Cleaning: If necessary, wipe the plug and surrounding area with a clean, damp cloth to remove any accumulated dirt. Avoid using harsh chemicals that could degrade the material.
Troubleshooting
If you encounter issues with your washer reservoir plug, consider the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Fluid Leakage from Reservoir | Plug not seated correctly; Damaged plug; Damaged reservoir opening. | Re-seat the plug firmly. Inspect the plug for damage and replace if necessary. Check the reservoir opening for cracks or deformities. |
| Plug Falls Out Easily | Incorrect plug size; Worn plug material; Damaged reservoir opening. | Ensure the correct part number for your vehicle. Replace the plug if worn. Inspect the reservoir opening for damage. |
Specifications
| Attribute | Detail |
|---|---|
| Brand | MTC |
| Model | 1313 / 61-31-1-369-343 |
| OEM Part Number | 61-31-1-369-343 |
| Material | High Density Polyethylene (HDPE), Metal |
| Item Weight | 0.16 ounces (approx. 4.54 g) |
| Package Dimensions | 6.42 x 5.04 x 0.98 inches |
| Country of Origin | Taiwan |
| Product Grade | Replacement Part |
| Fit Type | Vehicle Specific |
| Exterior Finish | OEM Quality Fit and Finish |
| Vehicle Service Type | Car |
| UPC | 849290057680 |
Warranty Information
This MTC Washer Reservoir Plug is a warranty-backed item. For specific details regarding the warranty period, coverage, and claims process, please refer to the warranty documentation provided with your purchase or contact MTC directly.
Customer Support
For technical assistance, installation questions, or warranty inquiries, please contact the manufacturer, MTC, through their official website or customer service channels. Always provide your product model number (1313 / 61-31-1-369-343) and OEM part number (61-31-1-369-343) when seeking support.

Image: A display of various MTC automotive parts and packaging, showcasing the brand's product range.

Image: The MTC company logo, featuring a stylized 'C' within a circle and the text 'USA Since 1984'.