2018 Porsche 911 Carrera 4S
Recalls, most-reported problems, crash-test ratings, fuel economy and what a 2018 Porsche 911 Carrera 4S is worth — from official NHTSA and EPA data. 1 on record.
2018 Porsche 911 Carrera 4S at a glance
Included: that car's specs and build sheet, model-year recall campaigns and a fair price.
2018 Porsche 911 Carrera 4S recalls 0
No NHTSA safety-recall campaigns are on record for the 2018 Porsche 911 Carrera 4S.
Source: U.S. NHTSA, checked 4 Nov 2026. A campaign covers the model year; to see whether a particular car still needs the repair, check its VIN on NHTSA.gov or ask a franchised dealer.
2018 Porsche 911 Carrera 4S common problems
The most-reported problem areas across all 1 owner complaint filed with NHTSA — and what to check before you buy.
2018 Porsche 911 Carrera 4S MPG & running costs
Source: U.S. EPA / DOE fueleconomy.gov. The EPA lists 2 versions of this model year; combined is shown as a range and the other figures are averages.
Estimated 5-year cost to own
A rough guide to what running a 2018 Porsche 911 Carrera 4S costs over five years and 75,000 miles.
How this is estimated: fuel is the U.S. EPA annual cost at 15,000 miles a year. There aren't enough comparable listings to estimate depreciation for this model, so it is left out. Not included: insurance, maintenance, repairs, taxes, registration and finance costs. Treat it as a comparison guide, not a quote.
Investigations & service bulletins
NHTSA defect investigations 1
Desiccated Air Bag Inflator Rupture Open
From 2000 through 2017, Takata produced millions of air bag inflators using two types of phase-stabilized ammonium nitrate ("PSAN") propellant -- propellant 2004 and propellant 2004L. After prolonged exposure to high temperature cycles and humidity, inflators using propellant 2004 can degrade, causing the propellant to burn too quickly when ignited. The rapid burning can cause the inflator to rupture during deploymen…
NHTSA #EA21002 · Air Bags · opened Sep 2021An investigation means NHTSA is examining a possible defect — it is not a recall, and many close without one.
Manufacturer service bulletins 560
Technical notes the manufacturer sent to dealers about known issues and fixes. Useful to mention to a mechanic — they are not recalls and repairs may not be covered. Showing the 10 most recent of 560.
Manufacturer's Certificate for Overview of Approved Porsche C40 Engine Oils. Note that this bulletin covers all models back to model year 1984, for which C40 engine oils are allocated.
Bulletin No. 28-26 · Power Train, Engine · Sep 2026Manufacturer's Certificate for Overview of Approved Porsche C20 Engine Oils. Note that the bulletin covers all models back to model year 1984, for which C20 engine oils are allocated.
Bulletin No. 27-26 · Power Train, Engine · Sep 2026Manufacturer's Certificate for Overview of Approved Porsche C30 Engine Oils. Note that the bulletin includes all models back to model year 1984, for which C30 engine oils are allocated.
Bulletin No. 26-26 · Power Train, Engine · Sep 2026Manufacturer's Certificate for Overview of Approved Porsche A40 Engine Oils. Note that this bulletin covers all vehicles from model year 1997 to 2020, for which A40 engine oils are assigned. Model years 1997-2001 are not available for selection in the system.
Bulletin No. 25-26 · Power Train, Engine · Sep 2026Special Tools and Equipment Information for alignment machines - Q3 2026 Software Spec Update Available
Bulletin SPTL2609 · Steering, Suspension, Wheels · Sep 2026Technical Information for Damage to Nano Plug Contacts Due to Utilization of Incorrect Measuring Equipment
Bulletin No. 12-26 · Electrical System · Sep 2026Special Tools and Equipment Information for Diagnostic Equipment Standards for all USA Porsche Centers
Bulletin SPTL2314a · Aug 2026Special Tools and Equipment Information for alignment machines - Q2 2026 Software Spec Update Available
Bulletin SPTL2608 · Steering, Suspension, Wheels · Aug 2026Product Knowledge for Model Type Designations
Bulletin GR16D8a · Aug 2026Product Knowledge for Chassis/VIN Numbering Systems
Bulletin GR16D8 · Aug 2026Source: NHTSA Office of Defects Investigation, listed for the 911 CARRERA 4S AWD. Model-year data, not specific to one car.