Porsche 911 (991) Carrera / Carrera S Service & Technical Training Manual – PDF

Description

The Porsche 911 (991) Carrera / Carrera S Service Information Technical Training Manual is the official AfterSales Service and Technician Training guide for the 2012 model year.
Originally created for factory training, it explains all major mechanical, hydraulic, and electronic updates that distinguish the 991 from the 997 generation — including new efficiency technologies, structural innovations, and advanced diagnostic functions.
An invaluable reference for technicians, tuners, and enthusiasts working on early 991 models.

IMAGES:

⚙️ Engine Section

• Two flat-six engines: 3.4 L MA104 (350 hp) and 3.8 L MA103 (400 hp)

• 7 400 rpm limit / 7 800 rpm redline

• Lightweight aluminum crankcase with integrated dry-sump lubrication

• Variable-flow oil pump, VarioCam Plus (± 50°) cam adjustment

• Dynamic oil-level sensor with ultrasonic feedback

• Dual-circuit cooling system and optional central radiator (hot climate option)

🧠 DME & Engine Electronics

• Continental SDI 9 ECU with DFI, VarioCam Plus & Start/Stop

• CAN-Bus links to PCM, PASM, PDCC and PSM modules

• Six-hole direct injectors & Hall-effect crankshaft sensing

• Thermal management for coordinated engine and gearbox warm-up

• Diagnostic functions (vacuum test, thermostat check, cooling bleed) via PIWIS II

⚙️ Transmission & Powertrain

• New 7-speed manual (G91/00) and PDK dual-clutch gearboxes

• Start/Stop & Coasting function integration

• Controlled rear differential lock (CRDL) with electro-hydraulic actuation

• Separate lubrication for gearbox & hydraulic control circuits

🛞 Chassis & Dynamics

• Aluminum double-wishbone suspension (front & rear)

• PASM adaptive damping & PDCC active anti-roll systems

• Electromechanical power steering (first for 911)

• Optional Dynamic Engine Mounts (Sport Chrono)

• Brembo 4-piston calipers, electric parking brake integration, TPMS

🏗️ Body & Electronics

• Hybrid steel/aluminum construction (77 lb lighter)

• Multi-zone HVAC and revised heat-exchanger topology

• Intelligent alternator control & energy recuperation

• Start/Stop logic based on seatbelt, gradient and A/C demand

• Optional flap-controlled sports exhaust tuning

🔍 Diagnostics & Schematics

• PIWIS II guided fault-finding and thermal-management tests

• CAN-bus topology for DME, PDK, PDCC, PASM, PSM

• NVLD system (Natural Vacuum Leak Detection) for U.S. models (± 2.5 mbar threshold)

• Fuse and relay locations (A-pillars / rear seat area)

• Coasting function and Auto Start-Stop power supply diagrams

🧾 File Details

• Document Title: Porsche 911 (991) Carrera / Carrera S Service Information Manual

• Model Years: 2012 (early 991 generation)

• Engines: 3.4 L MA104 · 3.8 L MA103 (Flat-Six)

• Transmissions: 7-Speed Manual / PDK Dual-Clutch

• Pages: ≈ 220 (Fully illustrated & bookmarked)

• Format: Searchable PDF (OCR-enabled)

• Language: English

• File Size: ≈ 45 MB

• Quality Notes: Factory scan with cross-referenced figures and diagnostic workflows.

✅ Verified Porsche factory content
💾 Instant digital download – lifetime access
🔍 Ideal for professional repair, diagnostics & training