Warning light or reduced performance
A complete scan and directed tests are needed before parts are proposed.
Read the Porsche warning-light guidePorsche model guide
The 991 introduced a new platform and spans naturally aspirated 991.1 Carrera models, turbocharged 991.2 Carrera models and distinct Turbo and GT powertrains. Phase and variant identification are essential.
Coverage
Model-specific systems
991.1 and 991.2 Carrera engines differ fundamentally, while Turbo and GT variants add separate hardware and service needs.
Manual and seven-speed PDK applications require transmission-specific fluid, clutch and control diagnosis.
PASM, active mounts, PDCC or rear-axle steering may be fitted depending on variant and option.
Naturally aspirated and turbocharged vehicles place different demands on engine and charge-air cooling.
Carrera and GT brake packages differ; PCCB requires system-specific measurement and handling.
Chassis, PDK and engine warnings require compatible access matched to the installed modules.
Start with the symptom
A complete scan and directed tests are needed before parts are proposed.
Read the Porsche warning-light guideDocument when it occurs and arrange unit-specific diagnosis.
Read the gear-engagement guideTyres and mechanical condition should be checked with control-system data.
Read the PASM fault guideAvoid continued heavy use until the affected circuit is identified.
Read the overheating guideScheduled work matched to the exact vehicle and history.
View serviceShift and driveline diagnosis before repair.
View serviceMechanical and controlled-chassis testing.
View serviceCompatible data followed by directed checks.
View serviceQuestions before booking