Bosch H312

BOSCH H312 OE Specialty Rear Wiper Blade Instruction Manual

Model: H312 | Brand: Bosch

1. Product Overview

The Bosch H312 OE Specialty Rear Wiper Blade is designed to provide clear visibility and reliable performance for the rear window of your vehicle. Featuring wear-resistant natural rubber and a specially coated wiping edge, this blade ensures smooth, quiet operation and a long service life. It is engineered for an OE (Original Equipment) fit on specialty rear applications, offering an easy one-step installation with its Quick Click Adapter.

Bosch H312 OE Specialty Rear Wiper Blade in packaging

Image: The Bosch H312 OE Specialty Rear Wiper Blade, 12-inch, shown in its retail packaging alongside the blade itself. The packaging highlights the model number H312 and indicates it's a rear wiper blade.

Top view of Bosch H312 rear wiper blade

Image: A top-down view of the Bosch H312 rear wiper blade, showcasing its aerodynamic design and the robust frame structure.

2. Safety Information

Always prioritize safety when working on your vehicle. Read and understand all instructions before beginning installation. Keep hands and fingers clear of moving parts. If unsure about any step, consult a professional mechanic.

  • Ensure the vehicle is turned off and the ignition key is removed before starting installation.
  • Be cautious when handling the wiper arm, as it is spring-loaded and can snap back, potentially causing injury or damage to the windshield.
  • Dispose of old wiper blades responsibly according to local regulations.

3. Installation Guide

The Bosch H312 wiper blade features an easy one-step installation with its Quick Click Adapter. Follow these steps for proper installation:

  1. Prepare the Wiper Arm: Gently lift the rear wiper arm away from the rear window until it locks into the upright position. If it does not lock, hold it firmly to prevent it from snapping back. Place a towel or soft cloth on the rear window beneath the wiper arm to protect the glass in case the arm accidentally falls.
  2. Remove the Old Wiper Blade: Locate the release tab or button on the existing wiper blade's adapter. Press or slide the tab and carefully slide the old blade off the wiper arm hook or pin. Some older blades may require more force or a specific angle to detach.
  3. Attach the New Wiper Blade: Align the Quick Click Adapter of the new Bosch H312 wiper blade with the wiper arm. Slide the blade onto the arm until you hear a "click" sound, indicating it is securely locked in place. Gently tug on the blade to ensure it is firmly attached.
    Hands installing a wiper blade onto a wiper arm

    Image: A close-up view of hands demonstrating the installation process of a wiper blade. One hand holds the new blade, while the other guides it onto the wiper arm, illustrating the secure attachment mechanism.

  4. Return Wiper Arm to Position: Carefully lower the wiper arm back onto the rear window.
  5. Test Operation: Turn on your vehicle and activate the rear wiper to ensure it operates smoothly and clears the window effectively. Check for any streaks or missed spots.
Bosch H312 wiper blade packaging with vehicle compatibility list

Image: The reverse side of the Bosch H312 wiper blade packaging, displaying a detailed list of compatible Hyundai and Kia vehicle models and their respective production years. This helps users verify fitment.

4. Operating Instructions

Once installed, the Bosch H312 rear wiper blade operates in conjunction with your vehicle's existing wiper system. Activate your rear wiper as needed for clear visibility during rain, snow, or when the rear window requires cleaning.

  • Ensure your windshield washer fluid reservoir is adequately filled for optimal cleaning performance.
  • Avoid operating dry wipers on a dry window, as this can damage the blade and scratch the glass.
  • In freezing conditions, ensure the blade is not frozen to the glass before activation to prevent damage.
Rear wiper blade in action on a wet car window

Image: A rear wiper blade actively clearing water from a car's back window, demonstrating its function in wet conditions.

5. Maintenance and Care

Regular maintenance extends the life and performance of your Bosch H312 wiper blade:

  • Clean Blades Regularly: Wipe the rubber edge of the blade with a damp cloth or a mild detergent solution to remove dirt, grime, and road film. This helps prevent streaking.
  • Inspect for Damage: Periodically check the rubber blade for cracks, tears, or hardening. Also, inspect the frame for any bends or corrosion.
  • Avoid Harsh Chemicals: Do not use harsh chemicals, solvents, or petroleum-based products on the wiper blades, as these can degrade the rubber.
  • Clear Ice and Snow: Before operating wipers in winter, ensure all ice and heavy snow are cleared from the windshield to prevent damage to the blades and wiper motor.
  • Replace When Necessary: Wiper blades typically need replacement every 6 to 12 months, or sooner if you notice streaking, chattering, or missed spots.

6. Troubleshooting

Problem Possible Cause Solution
Streaking or Smearing Dirty blade, worn rubber, contaminated windshield. Clean blade and windshield. If problem persists, replace blade.
Chattering or Skipping Blade angle incorrect, worn blade, dry windshield. Ensure windshield is wet. Check wiper arm for bends. Replace blade if worn.
Incomplete Wipe Worn blade, insufficient pressure from wiper arm. Replace blade. Inspect wiper arm spring tension.
Noise (Squeaking/Screeching) Dry windshield, dirty blade, worn blade. Use washer fluid. Clean blade. Replace blade if noise continues.

7. Specifications

  • Brand: Bosch
  • Model: H312 (Rear Blade)
  • Item Length: 12 inches (300 mm)
  • Mounting Type: Pinch Tab (Quick Click Adapter)
  • Vehicle Service Type: Car
  • Automotive Fit Type: Vehicle Specific Fit
  • Color: Black
  • Item Weight: Approximately 2.32 ounces
  • Manufacturer Part Number: 3397011678
  • Global Trade Identification Number (GTIN): 4047025233200
  • First Available Date: March 18, 2015

8. Warranty and Support

For specific warranty information regarding your Bosch H312 OE Specialty Rear Wiper Blade, please refer to the warranty documentation included with your purchase or visit the official Bosch automotive parts website. Bosch products are designed for durability and performance, backed by Bosch's commitment to quality.

For further assistance or technical support, please contact Bosch customer service or visit their official support channels. You may also find additional resources and compatibility information on the Bosch Store on Amazon.

A user manual in PDF format is also available for download: User Manual (PDF).

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This manual is for informational purposes only. Bosch reserves the right to make changes without prior notice.