Window Lift Relay - Installed With Seat Heating

90porsche02

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February 2, 1990
Subject: Seat Heating/Window Lift Relay
Model Group

911 Speedster 7

Part Identifier Number

7428 9001
ATTENTION: Service Manager/Service Technician

A window lift relay is installed in 911 Speedsters with seat heating (M139/M340) even though the Speedster is equipped with manually operated window regulators. Seat heating wiring is identical with the wiring of the 911 Carrera. (Power supply from window lift relay).

Refer to Wiring Diagram 911 Carrera, Model 89, Sheets 2 and 3.