Subject: Cruise Control Troubleshooting Models: 911 Carrera 1988
Bulletin Number: 89 – 08
ATTENTION: Service Manager/Service Technician
911 Carrera from Model Year 1988
The pneumatic cruise control system was replaced with electrically controlled version (Tempostat E) as of model year 1988. The cruise control unit of this version is identical with the control unit used in 928 S4 models.
Important Notice: Technical Bulletins are intended for use by professional technicians, not a “Do-it-yourselfer”. They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Special tools may be required to perform certain operations identified in these bulletins. Use of tools and procedures other than those recommended in these bulletins may be detrimental to the safe operation of your vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle or that your vehicle will have that condition. See your Porsche Dealer for information on whether your vehicle may benefit from the information. Part numbers listed in these bulletins are for reference only. Always check with your authorized Porsche dealer o verify correct part numbers.
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