1990-1995 Porsche 928: Reliability
Updated: 11/23/08
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Our reliability study for this generation Porsche 928 includes details on average repair costs, manufacturer recalls, and everything you need to know to gauge the long-term reliability of this generation Porsche 928 .
Trouble Spots
Consumer Guide's® Auto Editors have scoured repair bulletins and questioned mechanics to search
for commonly occurring problems for a particular vehicle. In some cases we also give possible manufacturer-suggested
solutions. In many instances these trouble spots are Technical Service Bulletins posted by the manufacturer,
however, we have our own expert looking at additional vehicle problems.
Air conditioner:
The air conditioner stops working because the O-rings leak between the expansion valve and evaporator. (1991-92)
Battery:
The battery dies and the alarm system malfunctions if the radio is removed and reinstalled without the frame for the radio touching an insulating strip on the radio. (1990-93)
Battery:
The battery can go dead because the switches for the doors and glovebox light may not open fully when the doors are closed. (1992-94)
Tail/brake lights:
The fuse for the brake lights and cruise control blows because the wiring harness near the right hinge on the hatch gets chafed. (1991)
Consumer Guide® Estimated Repair Costs
This table lists costs of likely repairs for comparison with other vehicles. The
dollar amount includes the cost of the part(s) and labor (based on $50 per hour) for the
typical repair without extras or add-ons. Like the pricing information, replacement
costs can vary widely depending on region. Expect charges at a new-car dealership
to be slightly higher.
| Item Name | Repair Cost |
| A/C Compressor | $655 |
| Alternator | $510 |
| Automatic Transmission or Transaxle | $1,300 |
| Brakes | $450 |
| Clutch, Pressure Plate, Bearing | $850 |
| Constant Velocity Joints | $1,345 |
| Exhaust System | $825 |
| Radiator | $410 |
| Shocks and/or Struts | $1,190 |
| Timing Chain or Belt | $330 |
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