NHTSA lists 1 safety recall and 2 owner complaints for the 2011 Porsche Boxster S. Most complaints involve power train (1) and service brakes, hydraulic (1). The EPA rates it 22–23 mpg combined.
PORSCHE HAS NOTIFIED NHTSA OF A DEFECT IN CERTAIN MODEL YEAR 2011 BOXSTER SPYDER 2 DOOR CONVERTIBLE PASSENGER VEHICLES. IT IS POSSIBLE THAT THE LOCKING HOOK ON THE SUN SHIELD (TEMPORARY SOFT TOP) MAY NOT ENGAGE CORRECTLY INTO THE LOCK CATCH WHICH IS POSITIONED ON THE WINDSCREEN FRAME OF THE VEHICLE.
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
“CAR HAS A MANUAL TRANSMISSION. SHIFTING FROM 1ST TO 2ND GEAR, THE SHIFTER SUDDENLY WENT COMPLETELY LOOSE, LEAVING THE CAR STUCK IN 1ST GEAR. AFTER SUBSEQUENT ANALYSIS, THE ROOT CAUSE WAS DETERMINED TO BE A SNAPPED SHIFT CABLE BETWEEN THE SHIFTER "STICK" AND THE TRANSMISSION. FURTHER RESEARCH REVEALS THIS IS A VERY WIDESPREAD PROBLEM WITHIN THE PORSCHE COMMUNITY, CAUSED BY A BAD ENGINEERING DESIGN WHERE THE SHIFT CABLE IS MADE TO TAKE A SHARP BEND IN IT'S PATH TO THE TRANSMISSION, CAUSING THE SHIFT CABLE METAL TO FATIGUE THROUGH THE BEND AND EVENTUALLY SHEAR/SNAP WITHOUT WARNING. SIMPLY GOOGLE "PORSCHE SHIFT CABLE BREAK" FOR EXAMPLE TO FIND THE MANY MANY FOLKS SUFFERING THIS ISSUE. THIS IS EXTREMELY DANGEROUS IF IT HAPPENS AT AN IN-OPPORTUNE TIME LIKE ON THE HIGHWAY OR IN TRAFFIC! I WAS VERY LUCKY THAT I WAS TRAVELING AT LOW SPEED IN AN AREA WHERE I COULD SAFELY PULL OVER. IMAGINE IF I WAS CRUISING ON THE HIGHWAY AT SPEED AND THEN DOWNSHIFTING FOR SAY AN EXIT, SUDDENLY FINDING THE SHIFTER GO COMPLETELY LOOSE, CAUSING ME TO BE STUCK IN SAY 6TH GEAR. THE INITIAL SHOCK AND NOT HAVING TIME TO FIGURE OUT WHAT IS GOING ON COULD HAVE CAUSED ME TO GET REAR ENDED AT…”
“MY 2011 PORSCHE CAYENNE HAS AN "AUTO STOP" FEATURE THAT KILLS THE ENGINE WHENEVER THE CAR IS STOPPED AT A STOP LIGHT OR STOP SIGN. WHEN THE DRIVER'S FOOT IS REMOVED FROM THE BRAKE, THE CAR ENGINE RESTARTS. THE STOP-START DELAY IS POTENTIALLY DANGEROUS. I WAS ALMOST REAR-ENDED BY A CAR THAT WAS BEHIND ME BECAUSE THE DRIVER WAS ANXIOUS TO "MOVE" AND MY CAYENNE'S ENGINE HAD TO RESTART BEFORE IT WOULD MOVE FROM THE STOP LIGHT. THIS SPECIAL FEATURE CAN BE TURNED OFF, BUT YOU MUST TURN IT OFF EVERY TIME YOU START THE CAR. OTHERWISE, THE AUTO STOP FEATURE WILL CONTINUE TO OPERATE. I CONSIDER THE AUTO STOP FEATURE TO BE PROBLEMATIC. *TR”
Towing, payload and dimensions aren’t in the EPA or NHTSA data, so we don’t list them.
| Version | City | Hwy | Comb. | Fuel / yr | CO₂ g/mi |
|---|---|---|---|---|---|
| Boxster S Auto 7-spd, 6 cyl, 3.4 L · Rear-Wheel Drive | 20 | 29 | 23 | $3,250 | 386 |
| Boxster S Man 6-spd, 6 cyl, 3.4 L · Rear-Wheel Drive | 19 | 26 | 22 | $3,400 | 404 |
| Item | Miles | Time | Note |
|---|---|---|---|
| Engine oil & filter | 5,000–10,000 mi | 6–12 months | Follow the oil-life monitor if fitted |
| Tire rotation | 5,000–7,500 mi | Every oil change | Check pressure monthly |
| Engine air filter | 15,000–30,000 mi | 1–2 years | Sooner in dusty areas |
| Cabin air filter | 15,000–25,000 mi | 1–2 years | |
| Brake fluid | — | 2–3 years | Absorbs moisture over time |
| Coolant | 60,000–100,000 mi | 5–10 years | Long-life coolants last longer |
| Spark plugs | 60,000–100,000 mi | — | Iridium/platinum plugs at the long end |
| 12V battery | — | 3–5 years | Heat shortens battery life |
1 safety recall as of Nov 11, 2026, according to NHTSA. Recall repairs are free at a dealer. Check your VIN to see whether your car is included and whether the repair was done.
Owners filed 2 complaints with NHTSA. The most-cited components are power train (1), service brakes, hydraulic (1), electrical system (1). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.
The EPA rates the 2011 Porsche Boxster S at 22–23 mpg combined, depending on engine and drivetrain (2 versions rated).