🏷️ Basic Information Identification Make: BMW Model: Z4 Model Variants: sDrive30i, sDrive35i, sDrive35is Year: 2011 Codes Chassis Code: E89 👋 Introduction Market Position Market Position: The BMW Z4 (E89) is a compact luxury roadster positioned in a segment that emphasizes sporty driving dynamics, premium features, and open-top motoring. It competes with vehicles like the Audi TT Roadster, Mercedes-Benz SLK-Class, and Porsche Boxster. Competitive Analysis Competitive Analysis: The Z4's strengths lie in its powerful inline-six engines (especially the 35is), sophisticated retractable hardtop, and driver-focused cockpit. Its rivals often offer different emphasis, with some prioritizing outright performance (Porsche Boxster) or refined luxury (Mercedes-Benz SLK). Key Features Key Features: Retractable hardtop convertible, rear-wheel drive, potent inline-six engines, premium interior materials, BMW iDrive infotainment system. 📋 Manual Details Coverage Areas Vehicle Models Covered: BMW Z4 sDrive30i, sDrive35i, sDrive35is (E89 Chassis) Body Styles Covered: Convertible Page Count Estimated Page Count: 300-400 Manual Type Type: Owner's Manual / Operator's Manual Language Language: English Format Format: Printed 📖 Manual Coverage Systems Covered Powertrain: Engine, transmission, exhaust system, fuel system, cooling system. Chassis: Suspension (front and rear), steering system, braking system (including ABS, DSC, CBC), wheels and tires. Electrical: Battery, charging system, lighting (interior and exterior), instrument cluster, gauges, warning indicators, fuses and relays. Body And Interior: Convertible top operation and maintenance, doors, windows, seats, climate control system (HVAC), safety belts, airbags, interior trim. Infotainment And Electronics: iDrive system, audio system, navigation system (if equipped), Bluetooth connectivity, power outlets. Procedures Included Operation: Starting and driving the vehicle, convertible top operation, parking, engaging gears. Maintenance: Fluid level checks (oil, coolant, brake fluid, windshield washer fluid), tire pressure checks, wiper blade replacement, bulb replacement. Troubleshooting: Understanding warning lights and messages, basic troubleshooting steps for common issues. Safety: Seat belt usage, airbag system explanation, child restraint system installation. Emergency: Emergency starting (jump starting), changing a flat tire, spare tire or tire mobility kit information. Technical Depth Depth: Comprehensive owner-level information covering day-to-day operation, maintenance, and basic troubleshooting. Does not include detailed repair procedures or diagnostics typically found in a service manual. 📊 Manual Specifications File Format File Format: Printed booklet Print Quality Print Quality: High-quality, professional printing with clear text and legible diagrams. Binding Type Binding Type: Stapled or perfect bound booklet, suitable for regular use. Paper Type Paper Type: Durable, glossy or semi-gloss paper suitable for automotive manuals. ⚙️ Engine Specifications Primary Engine Sdrive30I Engine: 3.0L naturally aspirated inline-six (N52B30) Sdrive35I Engine: 3.0L twin-turbocharged inline-six (N54B30) Sdrive35Is Engine: 3.0L twin-turbocharged inline-six (N54B30 - higher output) Performance Sdrive30I Horsepower: 255 hp @ 6600 rpm Sdrive30I Torque: 220 lb-ft @ 2750 rpm Sdrive35I Horsepower: 300 hp @ 5800 rpm Sdrive35I Torque: 300 lb-ft @ 1300-5000 rpm Sdrive35Is Horsepower: 335 hp @ 5900 rpm Sdrive35Is Torque: 332 lb-ft @ 1500-4500 rpm (368 lb-ft with overboost) Fuel System Fuel Delivery: Direct injection (for 35i/35is), multi-point fuel injection (for 30i). Recommended Fuel: Premium Unleaded Gasoline (91 octane or higher) 🔧 Transmission Standard Sdrive30I Transmission: 6-speed manual Sdrive35I Transmission: 7-speed M Double Clutch Transmission (M-DCT) with paddle shifters Sdrive35Is Transmission: 7-speed M Double Clutch Transmission (M-DCT) with paddle shifters Optional Sdrive30I Transmission Optional: 8-speed Steptronic automatic Features M-Dct Features: Launch Control, Drivelogic modes for various driving conditions. 📐 Dimensions Exterior Length: 161.4 inches (4100 mm) Width: 70.5 inches (1791 mm) Height: 52.5 inches (1334 mm) Wheelbase: 98.3 inches (2496 mm) Cargo Cargo Volume Top Up: 13.0 cubic feet (368 liters) Cargo Volume Top Down: 7.0 cubic feet (196 liters) Weights Curb Weight Sdrive30I: Approximately 3,350 lbs (1519 kg) Curb Weight Sdrive35I: Approximately 3,510 lbs (1592 kg) Curb Weight Sdrive35Is: Approximately 3,510 lbs (1592 kg) 🛡️ Safety Features Ratings NHTSA Overall Rating: Not explicitly rated as a Z4 E89 by NHTSA due to its niche segment and convertible nature. However, BMW vehicles generally perform well in crashworthiness. IIHS Rating: Not independently rated by IIHS due to convertible body style. Active Features Active Safety Features: Dynamic Stability Control (DSC), Dynamic Traction Control (DTC), Cornering Brake Control (CBC), Anti-lock Braking System (ABS), Brake Assist, Electronic Differential Lock. Passive Features Passive Safety Features: Front airbags (driver and passenger), side-impact airbags integrated into the seats, rollover protection system (automatically deploying hoops), three-point seat belts with pretensioners and force limiters, active front head restraints. 💡 Technology Features Infotainment Infotainment System: BMW iDrive system (e.g., CIC Professional Navigation System), featuring a central LCD display, rotary controller, and various buttons on the console. Driver Assistance Driver Assistance Features: Parking Distance Control (PDC) (front and rear), optional rearview camera, adaptive headlights (optional). Connectivity Connectivity Features: Bluetooth hands-free interface, USB audio interface, auxiliary audio input, optional satellite radio. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 10,000-15,000 miles or 12-24 months, based on BMW's Condition Based Service (CBS) system which monitors driving conditions and oil life. Brake Fluid Change Interval: Every 2 years, regardless of...