AI Damage2018 Porsche Cayenne S: common problems
The maker issued 345 service bulletins for this year. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 345
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 0 | 0 | 70 |
| Engine | 0 | 0 | 70 |
| Equipment | 0 | 0 | 37 |
| Structure | 0 | 0 | 21 |
| Powertrain | 0 | 0 | 17 |
| Engine and cooling | 0 | 0 | 14 |
| Wheels | 0 | 0 | 9 |
| Fuel/propulsion system | 0 | 0 | 8 |
| Service brakes | 0 | 0 | 8 |
| Visibility | 0 | 0 | 7 |
| Suspension | 0 | 0 | 6 |
| Seats | 0 | 0 | 5 |
| Steering | 0 | 0 | 3 |
| Backover prevention | 0 | 0 | 2 |
Comparison
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Structure. Rails, pillars, panel gaps, signs of pulling or welding.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- Special Tools and Equipment Information for alignment machines - Q3 2026 Software Spec Update Available
- 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.
- Manufacturer'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.
- Manufacturer'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.
- Manufacturer'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.
- Technical Information for Damage to Nano Plug Contacts Due to Utilization of Incorrect Measuring Equipment
- Special Tools and Equipment Information for Diagnostic Equipment Standards for all USA Porsche Centers
- Special Tools and Equipment Information for alignment machines - Q2 2026 Software Spec Update Available
- Product Knowledge for Model Type Designations
- Product Knowledge for Chassis/VIN Numbering Systems
- Belt Lock Warning on Driver Side Permanently Active / No Fault Memory Entries
Delete Airbag Control Unit Fault Memory (SY 74/25)
- Allocation of Approved Engine Oils MY 2027 (13/26)
NHTSA lists 345 bulletins for this year; the 12 newest are shown here.
Other years of this model
Questions and answers
What are the most common problems with the 2018 Porsche Cayenne S?
There are no owner complaints in the NHTSA data for this year; the data comes from 345 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2018 Porsche Cayenne S?
NHTSA lists 345 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2018 Porsche Cayenne S from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2018 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-04.