Tools and Materials Needed:
- Replacement wiper motor
- Socket wrench set
- Screwdriver
- Pliers
- Towel
Procedure:
Step 1: Disconnect Battery
- For safety, begin by disconnecting the negative terminal of the battery to avoid any electrical hazards.
Step 2: Remove Cowl Cover
- Open the hood of your Mercedes 190E.
- Locate the cowl cover, which is a plastic panel covering the base of the windshield.
- Use a screwdriver to pry open the clips that hold the cowl cover and then lift the cowl cover off.
Step 3: Remove Wiper Arms and Covers
- Remove the wiper arms and wiper blade covers. To remove a wiper arm, loosen the nut that holds it in place and gently lift it off the splined shaft.
Step 4: Locate Wiper Motor
- Once the wiper arms are removed, you'll be able to see the wiper motor assembly underneath the cowl area.
Step 5: Detach Electrical Connections to Wiper Motor
- Disconnect the electrical connectors attached to the wiper motor by gently squeezing the tabs and pulling the connectors apart.
Step 6: Remove Wiper Motor Fasteners
- Locate and remove the bolts or screws that secure the wiper motor in place.
Step 7: Disconnect Linkages
- Carefully disconnect the linkages between the wiper motor and the wiper mechanism.
Step 8: Remove Old Wiper Motor
- Once the wiper motor is disconnected, carefully remove it from the vehicle.
Step 9: Install New Wiper Motor
- Position the new wiper motor in place and secure it with the bolts or screws you removed earlier.
Step 10: Reconnect Linkages
- Reconnect the linkages to the wiper mechanism.
Step 11: Reconnect Electrical Connections
- Reattach the electrical connectors that were previously disconnected, ensuring they are firmly connected.
Step 12: Replace Wiper Arms and Covers
- Reinstall the wiper arms and wiper blade covers.
Step 13: Test Wiper Motor
- Reattach the battery negative terminal and turn on the ignition to test the wiper motor. Ensure it operates smoothly in both directions.
Step 14: Replace Cowl Cover
- Replace the cowl cover by aligning it properly and securing it with the clips.
Step 15: Final Checks
- Ensure all bolts and screws are tightened securely.
- Start the vehicle and test the wipers to ensure they work as intended.
Remember that working with electrical components and mechanical systems can be complex, especially if you're unfamiliar with auto repairs. If you don't feel comfortable performing this task yourself, it's advisable to seek help from a professional mechanic to avoid any potential issues or damage.
