Letter to Owners

(CUSTOMER NOTIFICATION)

Subject:
Recall Campaign 1985/86 Model Porsche 928S 1987 Model Porsche 928 S4 Replacement of Heat Shield for Catalytic Converter

Dear Porsche Owner:

This notice is sent to you in accordance with the requirements of the National Traffic and Motor Vehicle Safety Act.

Porsche AG has determined that a defect exists with the heat shield above the catalytic converter on 1985-1987 928 models. The heat shield is inadequate under certain circumstances involving engine malfunction. The problem arises where, due to, among other reasons, improper maintenance or repair, such as improperly secured ignition wires, the engine misfires resulting in overheating of the catalytic converter. If this condition is not detected, materials in the vicinity of the catalytic converter including the lines for the automatic transmission fluid on vehicles so equipped could ignite and cause an underbody fire due to the insufficiency of the heat shield.

Therefore, you should arrange for an appointment with your Porsche dealer, as soon as possible, to have the original heat shield replaced with the larger improved heat shield. On vehicles equipped with automatic transmission, a mounting bracket will be replaced and heat resistant sleeves installed on the transmission fluid lines in those models where the lines pass in the drive train tunnel. The ignition wiring will be checked to ensure that it was properly secured.

The necessary parts to perform this Recall should be available at your Porsche dealer. The estimated time to perform this repair is approximately one and one half (1-1/2) to two (2) hours depending on the vehicle model year and transmission version. However, your Porsche may have to be left longer at your Porsche dealership since the exhaust system has to cool down before work can commence. This repair will, of course, be free of charge to you.

If your Porsche dealer fails, or is unable to perform this repair within a reasonable period of time, you may call or write to:

Porsche Cars North America, Inc. Administrator
100 West Liberty Street National Highway Traffic Safety Administration
P.O. Box 30911 OR U.S. Department of Transportation
Reno, Nevada 89520-3911 Washington, D.C. 20590

Attn: Customer Assistance

Telephone: (702) 348-3154

We regret any inconvenience this Recall may cause; nevertheless, we are confident you understand our interest in your safety. Therefore, we urge you to make prompt arrangements so that the necessary work may be performed without delay.