Tesla Model 3/Y Pedestrian Protection Actuator 1735702-00-A

Function and Working Principle

• Function: The pedestrian protection actuator is mainly used to raise the rear part of the hood automatically in the event of a frontal collision with a pedestrian. When the vehicle is moving at a speed of approximately 30 to 52 km/h and the sensors at the front of the vehicle detect an impact with a pedestrian, the actuator will act to raise the hood by about 80 mm. This creates a buffer space between the hood and the components below, reducing the likelihood of head injuries to pedestrians.
• Working Principle: The pedestrian protection system relies on a series of sensors and algorithms that are designed and calibrated to determine when the pedestrian protection actuator should be activated. When the vehicle's front - end sensors detect a collision that meets the set conditions, they send a signal to the actuator, and the actuator then drives the hood to rise through mechanical or electrical means.

Replacement and Maintenance

• Replacement Steps: According to the Tesla service manual, when replacing the pedestrian protection actuator, first disconnect the first - responder loop and the negative terminal of the 12V battery. Then remove the nuts of the left - hand (LH) and right - hand (RH) wiper arms (torque 35 N·m) and the wiper arms, release the clips of the LH and RH shock tower covers and remove them, and then remove the cowl screen panel. Next, fold the fender liner downwards to access the electrical connector of the LH pedestrian protection actuator, release the locking tab to disconnect the electrical connector, release the clip that fixes the electrical connector to the body, and remove the bolts that fix the actuator to the body (torque 8 N·m) to remove the actuator. The installation procedure is the reverse of the removal steps. After installation, a laptop with Toolbox 3 needs to be connected to the vehicle, and the relevant routine in Toolbox 3 needs to be run.
• Maintenance Notes: If the pedestrian protection system is activated, the instrument panel will display an alert and a chime will sound. At this time, the vehicle should be taken to the nearest Tesla service center or Tesla - approved body shop immediately. Because once the pedestrian protection system is activated, the associated sensors and actuators must be serviced.

Market Supply

• Price: On eBay, the price of this new pedestrian protection actuator is $105.91, which is equivalent to 90.98 euros. On Alibaba, there are also suppliers offering this product.
• Brand: In addition to the original Tesla brand, there are also aftermarket brands such as Daysyore offering products with part number 1735702 - 00 - A, and Daysyore provides a 12 - month warranty.