1998 Porsche Boxster service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.
Built for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and use wiring diagrams and system sections to diagnose problems faster.
What’s included
- Step-by-step repair procedures and service information
- Specifications and reference data (where provided)
- Electrical coverage with wiring diagrams
- Coverage across key systems: engine, transmission, brakes, steering, suspension, HVAC, and more
Trims covered
- Base Convertible 2-Door
Engines covered
- 2.5L 2480CC H6 GAS DOHC Naturally Aspirated
Index / Table of contents
- Body
- Brakes
- Chassis Electrical
- Driveline
- Engine Cooling
- Engine Electrical
- Engine Mechanical
- Engine Performance & Emission Controls
- Fuel System
- General Information & Identification
- Heating, Ventilation, & Air Conditioning
- Hybrid & Electric Vehicle Systems
- Steering
- Suspension
- Transmission, Clutch, & Transfer Case
- Wiring Diagrams
CERTAIN 2-DOOR CONVERTIBLE PASSENGER VEHICLES EQUIPPED WITH THE TIPTRONIC (AUTOMATIC) TRANSMISSION MAY HAVE BEEN PRODUCED WITH AN INCORRECTLY ADJUSTED KEY-LOCK-CABLE DOWN TO THE SHIFT SELECTOR. IF TH
IF THE SELECTOR LEVER IS THEN SHIFTED FROM POSITION "P" TO POSITION "R, N OR D" WITH THE VEHICLE PAR
DEALERS WILL INSPECT THE CABLE ADJUSTMENT AND, REGARDLESS OF THE RESULTS OF THIS INSPECTION, THE KEY
DOPE, INC. IS RECALLING 42,540 COMBINATION CORNER AND BUMPER LAMP ASSEMBLIES OF VARIOUS PART NUMBERS SOLD FOR USE AS AFTERMARKET EQUIPMENT FOR VARIOUS PASSENGER VEHICLES. THESE HEADLAMPS FAIL TO CONF
DECREASED LIGHTING VISIBILITY MAY RESULT IN A VEHICLE CRASH.
DOPE, INC. WILL NOTIFY OWNERS AND OFFER A FULL REFUND FOR THE NONCOMPLIANT COMBINATION LAMPS. THE S
SABERSPORT IS RECALLING 16,270 COMBINATION CORNER AND BUMPER LAMP ASSEMBLIES OF VARIOUS PART NUMBERS SOLD FOR USE AS AFTERMARKET EQUIPMENT FOR VARIOUS PASSENGER VEHICLES. THESE HEADLAMPS FAIL TO CONF
DECREASED LIGHTING VISIBILITY MAY RESULT IN A VEHICLE CRASH.
SABERSPORT WILL NOTIFY OWNERS AND OFFER A FULL REFUND FOR THE NONCOMPLIANT COMBINATION LAMPS. THE S
Special tools and equipment information for the Boxster, Cayman, 911, and Panamera
Special tools and equipment information for brake caliper pins for the 911, Boxster, and Cayman
Information for PIWIS tester update 42.500.020
Information for PIWIS tester update 42.300.050 & .052
Instructions on manufactures certificate for approved Porsche A40 engine oils
Instructions on manufacturers certificate for approved C20 engine oils
Instructions on manufactures certificate for approved Porsche C30 engine oils
Information for PIWIS tester update 42.300.035
Showing the 8 most recent of 135 technical service bulletins on file with NHTSA.
THE AIR BAG LIGHT ILLUMINATED ON THE CAR SPONTANEOUSLY AND STAYS LIT AT ALL TIMES INDICATING A FAULT IN THE SYSTEM. FROM ALL REPORTS ON VARIOUS PORSCHE DISCUSSION FORUMS (THOUSANDS OF INCIDENTS THAT H
1998 PORSCHE BOXSTER. CONSUMER WRITES IN REGARDS TO VEHICLE ENGINE PROBLEMS. *SMD THE CONSUMER STATED BETWEEN 1997 AND 1998 PORSCHE PRODUCED AN ENGINE WITH TWO KNOWN FLAWS. THE FIRST, WAS THE ENGIN
MY VEHICLE HAD ONLY APPROXIMATELY 65,000 MILES WHEN THE HORN STARTED TO MALFUNCTION. THE HORN STARTED TO ROUTINELY DEPLOY ON ITS OWN. IN THE SHORT TERM I HAD TO HAVE IT DISCONNECTED BY MY REGULAR MECH
MY VEHICLE HAD ONLY APPROXIMATELY 65,000 MILES WHEN THE HORN STARTED TO MALFUNCTION. THE HORN STARTED TO ROUTINELY DEPLOY ON ITS OWN. IN THE SHORT TERM I HAD TO HAVE IT DISCONNECTED BY MY REGULAR MECH
WE BOUGHT A 1998 PORSCHE BOXSTER IN AUG 2009. SERVICED AS REQUIRED. ON 9/7/10 OUT DRIVING, STOPPED AT A STOP SIGN AS WE PROCEEDED THROUGH THE STOP SIGN THE ENGINE DIED, WHITE SMOKE CAME POURING OUT
Showing the 5 most serious of 44 complaints filed with NHTSA.
