The 2015 Regal represents the second generation of this model, produced on the GM Epsilon II platform. This premium mid-size sedan was engineered to blend European driving dynamics with American comfort, positioning it against competitors such as the Audi A4 and BMW 3 Series. It offered a range of potent engine options, including turbocharged four-cylinder and V6 direct injection powertrains, paired with either a six-speed automatic or an available manual transmission. Known for its upscale interior appointments and sophisticated European-inspired chassis and styling, the Regal aimed to appeal to consumers seeking a harmonious balance of performance, comfort, and luxury in their daily driving experience. This comprehensive Service and Repair Manual provides detailed, factory-level information essential for the maintenance and repair of the 2015 Regal. It covers all models and repairs from A to Z, encompassing every major vehicle system, including engine, drivetrain, brakes, steering, body, interior, and electrical systems. The manual offers step-by-step procedures, diagnostic guidance, component replacement instructions, and complete wiring schematics, all supported by high-resolution diagrams and illustrations. This resource is designed to empower owners, technicians, and mechanics with the knowledge needed to effectively maintain, troubleshoot, and repair the vehicle, ensuring its longevity and optimal performance. 🏷️ Basic Information Identification Make: Buick Model: Regal Year: 2015 Generation Generation Name: Second Generation (2011-2017) Generation Code: 2011-2017 Buick Regal Codes Platform: GM Epsilon II 👋 Introduction Market Position Positioning: Premium mid-size sedan focused on European driving dynamics and American comfort Positioning Statement: The 2015 Buick Regal aimed to capture buyers seeking a more engaging driving experience within the traditionally comfort-focused Buick brand, bridging the gap between mainstream sedans and entry-level luxury. Competitive Analysis Competitors: Acura TL, Audi A4, BMW 3 Series, Cadillac ATS, Lexus IS, Mercedes-Benz C-Class, Volvo S60 Key Features Design Philosophy: European-inspired chassis and styling, premium interior appointments Target Audience: Consumers seeking a blend of performance, comfort, and luxury in a mid-size sedan Value Proposition Benefits Of Manual: Empowers owners to perform maintenance and repairs, saving time and money, increasing vehicle knowledge and longevity 📋 Manual Details Coverage Areas Coverage: All models and all repairs A-Z for the 2015 Buick Regal Page Count Page Count: Not Specified (comprehensive digital format) Manual Type Type: Service and Repair Manual Manual Source: Factory-authorized or OEM equivalent documentation Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine And Systems: Engine, Control System, Fuel Service Specifications, Emission Control, Intake, Exhaust, Cooling, Lube, Ignition, Starting, Charging Drivetrain: Auto Transmission, Clutch, Manual Transmission, Transfer Propeller Shaft, Drive Shaft, Differential, Axle, Suspension Brakes And Steering: Brake Control, Brake, Parking Brake, Steering Column, Power Steering Body And Interior Body And Interior Systems: Air Conditioning, Suppl Restraint System, Seat Belt, Wiper & Washer, Door Lock, Windshield/Glass Mirror, Instrument Panel, Seat, Engine Hood/ Door, Exterior & Interior Electrical And Electronics Electrical And Electronics Systems: Electrical, Multiplex/CAN Communication, Engine Immobilizer, Cruise Control, Meter, Audio/Visual, Horn Procedures Included Repair Procedures: Step-by-step instructions for maintenance, service, diagnosis, and repair of all vehicle systems Diagnostic Procedures: Comprehensive diagnostic procedures for identifying and resolving issues across all vehicle systems Component Replacement: Detailed instructions for replacing components, from basic maintenance parts to major system overhauls Wiring Schematics: Complete wiring schematics for all electrical systems, crucial for diagnosing electrical faults. Technical Depth Depth: Factory highly detailed, equivalent to dealership technician manuals Documentation Types: Diagrams, illustrations, wiring schematics, specifications Diagnostic Tools Referenced: Implies use of GM's GDS2 (Global Diagnostic System) or similar diagnostic scan tools for advanced troubleshooting. 📊 Manual Specifications File Format Compatibility: Windows Vista (32/64-bit), XP, ME, 98, NT, 2000; Mac compatible Software Requirements: Adobe PDF Reader, Winzip (free) Speed Download: Yes Print Quality Printability: All pages printable, zoomable images for enlarged copies Image Resolution: High resolution, allowing for detailed examination of diagrams and illustrations. Binding Type Binding: Digital (no physical binding) Paper Type Paper Type: N/A (digital format, print as needed) ⚙️ Engine Specifications Primary Engine Engine Options 2015: 2.4L Ecotec Turbocharged I4 (LAF), 2.0L Ecotec Turbocharged I4 (LTG), 3.6L V6 Direct Injection (LLT/LFX) Performance 2.0L Turbo (Ltg) Horsepower: 259 hp @ 5300 rpm 2.0L Turbo (Ltg) Torque: 295 lb-ft @ 1700-4900 rpm 3.6L V6 Horsepower: 305 hp @ 6800 rpm 3.6L V6 Torque: 264 lb-ft @ 4800 rpm Fuel System Fuel Delivery Type: Direct Injection (DI) for all engines Recommended Fuel: Premium unleaded gasoline (91 octane or higher recommended for 2.0T and 3.6L for optimal performance) Engine Codes 2.4L Ecotec (Laf): Naturally aspirated, 182 hp @ 6700 rpm, 172 lb-ft @ 4900 rpm 🔧 Transmission Standard Standard Transmission: 6-speed automatic (M7U) for 2.0L Turbo and 3.6L V6 models Optional Optional Transmission: 6-speed manual (MV8) available on select 2.0L Turbo models (e.g., Regal Turbo trim) Features Transmission Features: Driver Shift Control (tap-up/tap-down manual shifting), available AWD 📐 Dimensions Exterior Length: 190.2 inches Width: 72.0 inches Height: 58.4 inches Wheelbase: 107.5...