Concave door switch washer. Porsche 911 / 912 / 964 / 993  ›  90161561520

Over time, the original contact switch washer can deteriorate due to age, repeated door operation, vibration and environmental exposure. Common signs of wear or damage include:

• Cracked or Broken Washer: Visible fractures or deterioration around the washer.
• Loose Door Contact Switch: The switch may move or sit incorrectly within its mounting location.
• Intermittent Interior Lighting: The interior light may fail to activate consistently when opening the door if the damaged washer affects switch positioning.
• Interior Light Remaining On: Incorrect switch seating or alignment may contribute to the switch failing to register a closed door.
• Switch Misalignment: The door contact switch may appear tilted, recessed or incorrectly positioned.
• Missing or Deteriorated Washer: The original component may be absent, distorted or damaged during previous maintenance.
• Unstable Switch Operation: Movement at the mounting point may contribute to inconsistent switch activation.

Important: Interior lighting faults may also result from a defective contact switch, damaged wiring or poor electrical connections. The washer should be inspected as part of the overall switch assembly.

Why Replacement Matters:
Replacing a worn or damaged concave door contact switch washer helps maintain the correct installation, stability and operation of the door contact switch.

Key Benefits of Replacement:

• Restores correct seating and positioning of the door contact switch.
• Helps maintain consistent interior light switch operation.
• Reduces unwanted movement or looseness at the mounting point.
• Replaces cracked, deteriorated or missing original washers.
• Helps protect the switch mounting area from unnecessary wear.
• Provides original equipment-style fitment and dimensions.
• Supports reliable maintenance of the vehicle's interior lighting system.
• Ideal for classic Porsche restoration and preventative maintenance.

A damaged or missing washer may appear insignificant, but incorrect door contact switch positioning can contribute to electrical operation issues. Replacing the washer is a simple and cost-effective way to help maintain the functionality and originality of the vehicle's door switch assembly.