Description
Factory Porsche 991 Workshop Manual (2011–2015)
The official factory-level repair resource for the 991-generation 911, covering every variant sold in the US market from the base Carrera through the fire-breathing Turbo S — all in a single searchable PDF.
Powertrain & Drive Coverage
| Component | Variants Covered |
|---|---|
| Petrol | 3.4L flat-six (350 hp), 3.8L flat-six (400–475 hp N/A), 3.8L twin-turbo flat-six (520–560 hp) |
| Diesel | N/A |
| Transmissions | 7-speed manual, 7-speed PDK dual-clutch automatic |
| Drive | RWD; AWD (Carrera 4, Carrera 4S, Targa 4, Turbo, Turbo S — PTM system) |
| Model Years | 2011, 2012, 2013, 2014, 2015 (991.1 generation) |
| Badge Twins | N/A |
Common 991 Repairs Covered
| System | Procedures |
|---|---|
| Engine — IMS/Bore Scoring | Cylinder bore inspection, piston and liner replacement procedures for known 3.8L bore scoring failures |
| PDK Transmission | Mechatronic unit service, fluid flush intervals, clutch pack inspection and replacement |
| PASM Adaptive Suspension | Damper replacement, control module diagnosis, ride-height sensor calibration |
| Cooling System | Coolant pipe inspection, thermostat replacement, intercooler service (Turbo models) |
Format & Delivery
PDF. Instant download; lifetime re-downloads.
Frequently Asked Questions
Does this manual cover the 991 bore scoring issue on 3.8L engines?
Yes. The manual includes complete engine teardown and inspection procedures applicable to diagnosing and addressing cylinder bore scoring — a known concern on some 991.1 3.8L flat-six units — including piston, liner, and oil circuit specifications.
Which 991 body styles and variants are included?
All 991.1 production variants are covered: Carrera, Carrera S, Carrera 4, Carrera 4S, Carrera GTS, Targa 4, Targa 4S, Turbo, Turbo S, and GT3 — across coupe, cabriolet, and Targa body configurations.
Are PDK dual-clutch transmission service procedures included?
Yes. The manual covers full PDK service including fluid change intervals, mechatronic unit diagnosis, clutch pack inspection, and selector/actuator repair procedures for both RWD and AWD-equipped 991 models.
What format is the manual?
This manual is delivered as a PDF file compatible with Windows, Mac, iOS, and Android devices. It is fully searchable by keyword and individual pages can be printed for shop use. Download is instant after purchase with unlimited future re-downloads.
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