Description
Left Windshield Wiper Motor Bosch For Peugeot 407 — Front (Driver’s Side)
Replace the faulty left (driver’s side) windshield wiper motor with a high-quality Bosch unit designed for Peugeot 407 applications. This motor restores reliable wiping performance, quiet operation and correct park position of the left wiper arm. Ideal for professional mechanics and DIY enthusiasts who commonly search by product codes such as 9661812180, 3397020875 or 0390241968. The unit is a direct-fit electrical component for the front wiper mechanism and helps eliminate intermittent wiping, slow travel or complete failure of the left wiper.
Technical Information
- Manufacturer: Bosch
- Model: Peugeot 407 (Front, Driver’s Side)
- Product Codes: 9661812180, 3397020875, 0390241968
- Additional Numbers: 3397020604, 390241968, 6405GL, 6405GN, 9656859980
Function And Typical Symptoms
The wiper motor converts electrical energy into rotary motion that drives the wiper linkage and arms, ensuring correct sweep and park position. Common symptoms of a failing motor include no movement of the left wiper, slow or intermittent operation, unusual grinding or clicking noises, and failure to park in the resting position. Because the motor is integrated with the wiper linkage, symptoms can mimic mechanical binding or linkage wear.
Installation Recommendations
Installation should be performed by a competent technician or an experienced DIY mechanic. Typical replacement steps:
- Disconnect the battery negative terminal to avoid short circuits.
- Remove Left Wiper Arm: Mark and remove the wiper arm from the splined shaft (retain any caps or fasteners).
- Remove Cowl/Trim: Take off the lower cowl/grille panels to access the wiper motor and linkage.
- Disconnect Electrical Connector: Unplug the motor wiring harness carefully.
- Unbolt Motor: Remove mounting bolts securing the motor to the body or gearbox and separate the motor from the linkage.
- Fit New Motor: Position new motor, secure bolts, reconnect electrical connector and reassemble cowl and wiper arm.
- Adjust And Test: Reconnect battery, cycle the wipers to check sweep, park position and ensure no binding. Refit wiper arm to correct angle on the splines.
Avoid forcing the linkage when refitting. If the linkage is corroded or seizing, lubricate or replace affected components to prevent premature motor overload.
Why This Part Most Commonly Fails
Wiper motors commonly fail due to a combination of mechanical wear and environmental factors. Typical causes include worn carbon brushes and commutator wear inside the motor, water ingress leading to corrosion of the motor or gearbox, seized linkages that overload the motor, and electrical faults such as connector corrosion or wiring damage. Heavy use in winter conditions, frozen windscreen loads and prolonged exposure to moisture accelerate wear.
Practical Notes
When replacing the motor, inspect the wiper linkage, splines and mounting points. Replacing only the motor while the linkage is corroded may lead to quick recurrence of the fault. This part is often searched and ordered by its product numbers—include these codes when searching to ensure a correct match.
