1978 Porsche 928 Auto
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Unverified
All photo credits
- Photo: Porsche 928 Cabrio Jurinek (1986) 1X7A6686 by Alexander-93, CC BY-SA 4.0, via Wikimedia Commons
- Photo: Porsche 928 (54186883034) by Rutger van der Maar, CC BY 2.0, via Wikimedia Commons
- Photo: Porsche 928 (54186806351) by Rutger van der Maar, CC BY 2.0, via Wikimedia Commons
- Photo: Porsche 928 (51198) by Calreyn88, CC BY-SA 4.0, via Wikimedia Commons
- Photo: Porsche 928 IMG 5204 by Alexander Migl, CC BY-SA 4.0, via Wikimedia Commons
The 1978 Porsche 928 Auto is a 219-hp 4.5-liter V8 with a 3-speed automatic transaxle and rear-wheel drive. It is rated at 13 mpg combined.
It makes 219 horsepower. EPA fuel-economy estimates are 11 mpg city and 16 mpg highway (13 mpg combined).
The 928 measures 178.0 inches long on a 98.4-inch wheelbase and has a curb weight of 3,199 lb.
| Spec | Value |
|---|---|
| Vehicle | |
| Body Type | Coupe |
| Powertrain | Gas |
| Engine | |
| Engine Type | 4.5L SOHC 90-degree V8, all-alloy |
| Displacement | 4.5 L |
| Horsepower | 219 hp |
| Valvetrain | SOHC (one cam per bank), 2 valves/cylinder |
| Bore and Stroke | 95 x 78.9 mm |
| Compression Ratio | 8.5:1 |
| Injection Type | Bosch K-Jetronic (CIS) fuel injection |
| Drivetrain | |
| Drive Type | RWD |
| Transmission | |
| Transmission | 3-speed automatic transaxle |
| Fuel Economy | |
| City | 11 MPG |
| Highway | 16 MPG |
| Combined | 13 MPG |
| Recommended Fuel | 91 octane |
| Tank Capacity | 22.7 gal |
| Suspension | |
| Front Suspension | Independent upper/lower control arms, coil springs and shock absorbers |
| Rear Suspension | Weissach axle (passive rear-wheel steering) |
| Brakes | |
| Front Brake Disc | Vented disc |
| Rear Brake Disc | Vented disc |
| Dimensions & Weight | |
| Length | 178 in |
| Width | 72.3 in |
| Height | 50.2 in |
| Wheelbase | 98.4 in |
| Front Track | 61.1 in |
| Rear Track | 60.2 in |
| Ground Clearance | 4.9 in |
| Curb Weight | 3,199 lbs |
| Weight Distribution (F/R) | 50% / 50% |
Similar cars
Rivals to the 1978 Porsche 928 Auto with similar size, power and price from around the same years.
Safety & Recalls
NCAP safety ratings
Not crash-tested by NHTSA for this model year.
Recalls
9 recalls on file with NHTSA for the 1978 Porsche 928. Not every recall applies to every trim or VIN — check yours at nhtsa.gov/recalls.
May 12, 1982 · STEERING: STEERING WHEEL/HANDLE BAR
ON THE INVOLVED VEHICLES, THE UNIVERSAL JOINT WHICH CONNECTS THE STEERING SHAFT TO THE STEERING RACK MAY HAVE BEEN IMPROPERLY POSITIONED DURING ASSEMBLY. IF VEHICLE IS DRIVEN ON POOR ROADS FOR AN EXTENDED PERIOD OF TIME, THE CONNECTION BETWEEN THE STEERING SHAFT AND UNIVERSAL JOINT COULD LOOSEN AND CAUSE EXCESSIVE STEERING WHEEL FREE PLAY.
Remedy: DEALER WILL INSPECT AND REPOSITION THE UNIVERSAL JOINT CONNECTION AT NO COST TO OWNER.
NHTSA campaign 82V048000
Oct 10, 1978 · EQUIPMENT:OTHER:LABELS
THE SYMBOL IDENTIFYING THE LIGHT SWITCH ON THE INVOLVED VEHICLES DOES NOT MEET THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 101, "CONTROL AND DISPLAYS".
Remedy: OWNER WILL BE SENT THE CORRECT SYMBOL FOR SELF INSTALLATION OR INSTALLATION BY THE DEALER.
NHTSA campaign 78V217000
Aug 18, 1978 · EQUIPMENT:OTHER:LABELS
CERTIFICATION LABELS INSTALLED IN THE INVOLVED VEHICLES MAY NOT INCLUDE THE DATE OF VEHICLE MANUFACTURE, AS REQUIRED BY FEDERAL REGULATIONS.
Remedy: DEALER WILL INSTALL THE CORRECT CERTIFICATION LABEL WITHOUT CHARGE TO OWNER.
NHTSA campaign 78V182000
Jun 2, 1978 · STRUCTURE:BODY
THE ROOF MOLDINGS ON EACH SIDE OF THE VEHICLE ARE NOT SECURELY FASTENED.
Remedy: THE DEALER WILL SECURE BOTH LEFT AND RIGHT ROOF MOLDINGS WITH ADDITIONAL SCREWS ON ALL INVOLVED VEHICLES, FREE OF CHARGE.
NHTSA campaign 78V124000
Jun 2, 1978 · SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:HOSES, LINES/PIPING, AND FITTINGS
THE EXISTING BRAKE HOSES MAY HAVE BEEN TWISTED DURING ASSEMBLY. CONSEQUENTLY, THE HOSE COULD CHAFE AGAINST THE EMERGENCY BRAKE CABLE. PROLONGED CHAFING COULD RESULT IN LOSS OF BRAKE FLUID, THUS AFFECTING REAR BRAKES.
Remedy: THE DEALER WILL REROUTE THE REAR BRAKE HOSE, IF NECESSARY, WITHOUT CHARGE TO OWNER.
NHTSA campaign 78V123000
Jun 2, 1978 · PARKING BRAKE:CONVENTIONAL:MECHANICAL:LINKAGE AND CABLE
THE EMERGENCY BRAKE CABLE MAY HAVE BEEN IMPROPERLY ROUTED DURING ASSEMBLY. CONSEQUENTLY, THE CABLE COULD CHAFE AGAINST THE BRAKE LINE OR BRAKE HOSE BRACKETS. CHAFING COULD LEAD TO DAMAGE TO THE EMERGENY BRAKE CABLE.
Remedy: THE DEALER WILL REROUTE THE EMERGENCY BRAKE CABLE WITHOUT CHARGE TO OWNER. .
NHTSA campaign 78V122000
Jun 2, 1978 · SUSPENSION:FRONT
THE FRONT AXLE CASTER AND CAMBER ADJUSTERS COULD CRACK DUE TO IMPROPER MANUFACTURE. SHOULD THIS HAPPEN, THE ADJUSTERS COULD LOOSEN AND CAUSE WHEEL MISALIGNMENT. ALSO, THE TIRE ON EITHER THE LEFT OR RIGHT SIDE COULD EXPERIENCE EXTENSIVE WEAR.
Remedy: THE DEALER WILL REPLACE THE CASTER AND CAMBER ADJUSTERS WITHOUT CHARGE TO OWNER.
NHTSA campaign 78V121000
Jun 2, 1978 · VEHICLE SPEED CONTROL
THE ELECTRICAL CONTACT POINTS INSIDE THE STEERING COLUMN SPEED CONTROL SWITCH MAY HAVE BEEN IMPROPERLY MANUFACTURED. AS A RESULT, "STICKING" COULD OCCUR AND CAUSE THE SPEED CONTROL SYSTEM TO STOP FUNCTIONING.
Remedy: THE DEALER WILL REPLACE THE SPEED CONTROL SWITCH, IF NECESSARY, FREE OF CHARGE.
NHTSA campaign 78V120000
Jun 2, 1978 · STEERING:LINKAGES:KNUCKLE:SPINDLE:ARM
BOTH THE LEFT AND RIGHT STEERING ARM ARE ATTACHED TO THE FRONT AXLE KNUCKLE WITH TWO FASTENING BOLTS. THESE BOLTS ARE BEVELED BELOW THE HEX HEAD TO FIT INTO THE CHAMFERED HOLES IN THE STEERING ARM FOR PROPER FASTENING. THE CHAMFERING IN THESE STEERING ARM HOLES WAS OMITTED DURING MANUFACTURE. SHOULD THE BOLTS LOOSEN, THE STEERING ARM COULD BECOME LOOSE.
Remedy: THE DEALER WILL CORRECT THE DEFECT BY CHAMFERING THE HOLES.
NHTSA campaign 78V119000
Source: US National Highway Traffic Safety Administration (nhtsa.gov), matched as 1978 PORSCHE 928. US-market vehicles only; data cached for up to 7 days.