Ford Focus Mk2 Heated Rear Screen Switch Button 8V4T-18C621-AA

Ford Focus Mk2 Heated Rear Screen Switch Button is an original component from the Switches, control elements and ignition switches group, designed to control the rear window heating function in your car. This practical solution allows for convenient switching of the heating on and off, which improves visibility and driving safety in difficult weather conditions. The used OEM component from Ford ensures a proper fit for the electrical installation and cockpit panel.

Specifications and technical data

• SKU: 8V4T-18C621-AA
• Mark: Ford
• Condition: Used
• OEM Part Number: 8V4T-18C621-AA
• Substitutable numbers: 8V4T-18C621-AA, 8V4T18C621AA
• Part type: Push Switch
• Category: Switches & Controls

Function and application of the heated rear screen switch

The switch is responsible for controlling the electrical circuit of the rear window heating, enabling quick removal of steam and frost from the glass surface. Thanks to this, the driver gains better rear visibility, which is important both during daily city driving and maneuvering in a parking lot. The element is part of the factory control system in the Ford Focus Mk2, which facilitates integration with other dashboard functions.

Construction and integration with the control system

The switch belongs to the Switches, control elements and ignition switches group, which means it has been designed to work in the vehicle interior environment, taking into account ergonomics and signal readability. The design provides for cooperation with the Ford electrical installation, ensuring a stable connection with the wiring harness and an appropriate response to signals from the control system.

The original design helps maintain a consistent look of the center panel, as well as the correct operation of the backlight and any indicator lights informing about active heating. Thanks to this, the driver receives a clear signal about the system status, which increases comfort of use.

Benefits of using an original Ford component

Using a switch from the Ford offer allows you to maintain factory assembly and operation standards. Key advantages include:

• secure fit to the mounting socket in the center console,
• compliance with the vehicle's electrical installation parameters,
• consistent aesthetics with other control elements in the interior,
• preservation of the original logic of the window heating system operation.

Thanks to this, replacing a damaged or faulty button with an original component from the same group allows you to restore full functionality without the need for modifications to the installation or control panel.

Selection of a used switch and operational safety

When choosing a used heated rear screen switch, it is worth paying attention to the external condition of the housing, the stability of the mechanism, and the correct operation of the backlight. An element from this group has a direct impact on comfort and driving safety in conditions of limited visibility, which is why it is important that it maintains a correct response to every press.

If you are interested in a broader context of selecting aftermarket consumables, you will find useful information in the article Second-hand braking system: how to safely choose discs, calipers and ABS?, which discusses practical principles for assessing used components in terms of safety.

Expansion of the control system in a Ford

If you are planning a comprehensive repair or upgrade of the cockpit area in your Ford and need other elements from the same group, such as function buttons, adjustment knobs, or control modules, check the available parts in the Ford switches, control elements and ignition switches category.

To better plan service work and shorten the car's downtime in the workshop, you can also read the guide Availability of car parts off-the-shelf vs. repair time – how do used OEM parts shorten the stay in the workshop?, which describes how the use of readily available OEM elements affects the pace of repairs.