🏷️ Basic Information Identification Make: BMW Model: 135i Year: 2012 Generation Generation Code: E82 (coupe), E88 (convertible) Codes Chassis Code: E82 (coupe), E88 (convertible) 👋 Introduction Market Position Positioning: Entry-level performance coupe/convertible within the BMW lineup, targeting enthusiasts seeking a balance of sportiness and practicality. Competitive Analysis Competitors: Audi A3, Mercedes-Benz C-Class Coupe/Convertible, Infiniti G37 Coupe/Convertible, Ford Mustang Key Features Performance Focus: Powerful N55 engine, RWD chassis, sport-tuned suspension, available M Sport package. Styling: Classic BMW proportions, aggressive front fascia, distinctive Hofmeister kink. Premium Appointments: High-quality interior materials, advanced technology features for its era. 📋 Manual Details Coverage Areas Covered Regions: Global (North America, Europe, Asia, etc.) Page Count Estimated Pages: 1500+ Manual Type Type: Official Service and Repair Manual Software Language Primary Language: English Format Format: Digital Software/PDF 📖 Manual Coverage Systems Covered Engine: N55 Twin-scroll Turbocharged Inline-6 (3.0L) Engine Management: DME (Digital Motor Electronics), ignition, fuel injection, emissions control Transmission Manual: Getrag GS6-37BZ 6-speed manual Transmission Automatic: ZF 6HP19TU 6-speed automatic (optional) Drivetrain: Rear-wheel drive (RWD), differential, driveshafts Suspension: Front: MacPherson strut with aluminum wishbones. Rear: Multi-link independent suspension. Brakes: Front: Vented discs with dual-piston calipers. Rear: Vented discs with single-piston calipers. ABS, DSC, DTC, CBC. Steering: Hydraulic power steering Electrical System: 12V battery, alternator, starter, wiring diagrams, fuse box locations Body And Chassis: Body panels, doors, hood, trunk, interior trim, chassis structure HVAC: Climate control system, A/C compressor, refrigerant, heater core Infotainment And Navigation: iDrive system, radio, CD player, navigation (CCC/CIC), audio components Safety Systems: Airbags, seatbelts, SRS module, pre-tensioners Procedures Included Maintenance: Oil changes, filter replacements, fluid checks and top-offs, spark plug replacement, brake pad/rotor replacement Diagnostics: Troubleshooting guides, fault code interpretation (DTC), diagnostic connector (OBD-II) Repair Engine: Engine assembly/disassembly, component replacement (turbocharger, injectors, ignition coils), timing chain service Repair Transmission: Clutch replacement, transmission fluid/filter change, automatic transmission servicing Repair Brakes: Brake caliper rebuild/replacement, brake line replacement, ABS module diagnostics Repair Suspension: Shock absorber/strut replacement, control arm replacement, wheel bearing replacement, alignment specifications Repair Electrical: Starter/alternator replacement, battery testing, wiring harness repair, sensor replacement Body Repair: Panel removal/installation, door mechanism adjustment, bumper repair HVAC Repair: A/C system evacuation/recharge, blower motor replacement, cabin filter replacement Technical Specifications: Torque specifications for all fasteners, diagnostic trouble codes (DTCs), component identification Technical Depth Depth: Comprehensive (from basic maintenance to complete engine/transmission rebuilds and advanced electrical diagnostics) 📊 Manual Specifications File Format File Type: PDF/Proprietary Software Print Quality Quality: High-resolution diagrams and text Binding Type Binding: N/A (Digital Software) Paper Type Paper: N/A (Digital Software) Searchability Text Search: Fully searchable text content Interactivity Features: Hyperlinked table of contents, clickable diagrams, potential video integration (depending on specific software) ⚙️ Engine Specifications Primary Engine Engine Code: N55B30 Engine Type: Inline 6-cylinder, Twin-scroll Turbocharged, Double VANOS, Valvetronic Displacement: 2979 cc (3.0 Liters) Performance Horsepower: 300 hp @ 5800 rpm Torque: 300 lb-ft @ 1300-5000 rpm Fuel System Fuel Delivery: High-pressure direct injection (Bosch HPI) Recommended Fuel: Premium Unleaded 91+ Octane Lubrication Oil Capacity: 6.5 Liters (6.9 Quarts) Recommended Oil: BMW Longlife-01 (e.g., Castrol SYNTEC 5W-30) Cooling System Coolant Capacity: Approximately 8.5 Liters (8.9 Quarts) Coolant Type: BMW Blue Antifreeze/Coolant 🔧 Transmission Standard Type: Getrag GS6-37BZ 6-speed manual Optional Type: ZF 6HP19TU 6-speed automatic with Steptronic Features Manual Clutch: Hydraulic single-plate clutch Automatic Modes: Sport, Manual (Steptronic), Adaptive Transmission Control (ATC) Fluid Manual Fluid Type: MTF-LT-3 (Manual Transmission Fluid LT-3) Fluid Automatic Fluid Type: ZF Lifeguardfluid 6 (or equivalent BMW ATF LT-5) 📐 Dimensions Exterior Coupe Length: 172.2 inches (4374 mm) Coupe Width: 69.9 inches (1775 mm) Coupe Height: 55.4 inches (1407 mm) Convertible Wheelbase: 104.7 inches (2659 mm) Cargo Coupe Trunk Volume: 11.0 cubic feet (310 liters) Weights Coupe Curb Weight: 3450-3571 lbs (1565-1620 kg) Convertible Curb Weight: 3858-3957 lbs (1750-1795 kg) 🛡️ Safety Features Ratings NHTSA Front Impact: 5-Star (2012 model year) IIHS Top Safety Pick: Yes (for Coupe models) Active Features Stability Control: Dynamic Stability Control (DSC), Dynamic Traction Control (DTC), Cornering Brake Control (CBC) Braking Assistance: Anti-lock Braking System (ABS), Brake Assist Passive Features Airbags: Front airbags, side-impact airbags, head protection airbags (front and rear) Seatbelts: 3-point inertia-reel seatbelts with pretensioners and force limiters 💡 Technology Features Infotainment System Name: BMW iDrive (CCC or CIC Professional Navigation system) Display: Central Information Display (CID), typically 7-inch or 8.8-inch screen. Connectivity: Bluetooth, USB audio interface, AUX input. Driver Assistance Parking Assistance: Optional Parking Distance Control (PDC) with front and rear sensors. Cruise Control: Standard cruise control, optional adaptive cruise control (ACC) on some models. Connectivity Telematics: Optional BMW ConnectedDrive services. 🔧 Maintenance Service Intervals Oil Change Interval: Condition-based servicing (CBS) system typically recommends oil changes every 10,000-15,000 miles or annually, whichever comes first. Brake Fluid Flush: Every 2 years, regardless of mileage. Spark Plug Replacement: Typically around 60,000 miles for N55 engines, but check CBS. Cabin Air Filter: Every 12,000-15,000 miles or annually....