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- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Electric Window Relay
Restore reliable operation of your Porsche's electric
windows with this Electric Window Relay. This relay controls the electrical
power supplied to the power window system, ensuring smooth, dependable
operation every time you press the window switch.
Fits:
This genuine replacement installs directly into the factory relay board, occupying relay position G7 on Porsche 944 and 968 models and relay position VI on the Porsche 928.
Whether you're repairing intermittent window faults or carrying out preventative maintenance, using a Genuine Porsche relay ensures the correct electrical performance, durability and compatibility expected from an original factory component.
What Does the Electric Window Relay Do?
The electric window relay is an essential part of the vehicle's power window electrical circuit.
Its functions include:
- Controlling power delivery to the electric window motors.
- Providing switched electrical current to the window system.
- Protecting window switches from carrying high electrical loads.
- Ensuring smooth and reliable window operation.
- Supporting safe and consistent operation of both driver and passenger windows.
Without a correctly functioning relay, the power window system may not receive the electrical supply required for normal operation.
Why Do Electric Window Relays Fail?
Electrical relays operate every time the windows are used and are subjected to thousands of switching cycles throughout their service life.
Common causes of failure include:
- Internal contact wear.
- Heat generated by repeated electrical switching.
- Oxidation of electrical contacts.
- Age-related deterioration of internal components.
- Moisture entering the relay board.
- High electrical loads caused by ageing window motors or regulators.
As the relay ages, internal resistance increases, leading to unreliable or intermittent electrical operation.
When Should the Relay Be Replaced?
Replacement is recommended when:
- Electric windows stop working intermittently.
- Both windows fail to operate despite good switches and motors.
- The relay clicks but the windows do not move.
- Window operation becomes unreliable.
- Diagnosing electrical faults within the power window system.
- Restoring an original Porsche electrical system.
- Carrying out preventative maintenance on higher-mileage vehicles.
Replacing a faulty relay is often one of the quickest and most cost-effective ways to restore dependable electric window operation.
Genuine Porsche Features
- Genuine Porsche Original Equipment part.
- Manufactured to Porsche's exact factory specifications.
- Direct replacement for the original electric window relay.
- Plug-and-play installation.
- Correct switching characteristics for the factory electrical system.
- Reliable long-term performance.
- Maintains original vehicle authenticity.
Relay Board Location
For easy identification during installation:
- Porsche
944 / 968: Relay board position G7
- Porsche 928: Relay board position VI
Always verify the relay location using the appropriate workshop manual for your specific model year.
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