🏷️ Basic Information

Make:

BMW

Model:

Z4

Year:

2011

Chassis Code:

E89

👋 Introduction

Segment:

Premium Compact Sports Roadster

Competitors:

Porsche Boxster, Audi TT Roadster, Mercedes-Benz SLK-Class, Chevrolet Corvette (lower trims).

Driving Dynamics:

Balanced chassis, rear-wheel drive, lightweight construction, powerful inline-six engines (on certain models), responsive steering.

Convertible System:

Retractable hardtop, offering coupe-like security and insulation when closed and open-air driving experience when retracted.

📋 Manual Details

Models Covered:

All models, engines, trims, and transmission types for the 2011 BMW Z4 (E89).

Estimated Page Count:

N/A (Downloadable Digital Format)

Type:

Complete Workshop Service Repair Manual

Language:

English

Format:

Downloadable Digital File (PDF compatible)

📖 Manual Coverage

Powertrain:

Engine mechanicals, fuel system, cooling system, exhaust system, lubrication system, engine management (DME/ECU), transmission (manual & automatic), driveline, differentials.

Chassis:

Suspension (front & rear, adaptive suspension), steering system, braking system (including ABS, DSC), wheels and tires, chassis and body structure.

Electrical:

12V electrical system, battery, charging system, starter, lighting (headlights, taillights, interior), ignition system, instrument cluster, body control module (BCM), comfort electronics, infotainment system, diagnostic trouble codes (DTCs).

Bodywork:

Exterior body panels, interior trim, convertible roof system (mechanism, hydraulics, sensors), doors, windows, mirrors, bumpers, crash structures.

Maintenance:

Scheduled maintenance, oil changes, filter replacements, fluid checks and top-offs, spark plug replacement, brake pad replacement, belt inspections.

Repair:

Engine component overhaul, transmission repair, suspension and steering linkage replacement, brake caliper and rotor replacement, electrical component diagnosis and replacement, body panel repair and replacement, convertible top system repair.

Diagnostics:

Troubleshooting procedures for common drivability issues, electrical faults, and mechanical problems. Diagnostic trouble code (DTC) interpretation and guided diagnostics.

Depth:

Comprehensive, covering everything from basic fluid checks to complete engine and transmission rebuilds, including detailed diagnostic strategies and wiring diagrams.

📊 Manual Specifications

File Type:

PDF (Portable Document Format)

Quality:

High Resolution (suitable for printing clear diagrams and text)

Binding:

N/A (Digital Download)

Paper:

N/A (Digital Download)

⚙️ Engine Specifications

Engine 1:

3.0L Inline-6 Cylinder (N55) Twin-Scroll Turbocharged

Engine 2:

3.0L Inline-6 Cylinder (N54) Twin-Turbocharged (Early 2011 production, replaced by N55)

Engine 3:

2.0L Inline-4 Cylinder (N20) Twin-Scroll Turbocharged (Later 2011 production and subsequent years)

Horsepower N55:

300 hp @ 5800 rpm

Torque N55:

300 lb-ft @ 1200-5000 rpm

Horsepower N54:

300 hp @ 5800 rpm

Torque N54:

300 lb-ft @ 1300-5000 rpm

Horsepower N20:

240 hp @ 5000 rpm

Torque N20:

255 lb-ft @ 1250-4500 rpm

Injection Type:

Direct Injection (High-Pressure)

Fuel Type:

Premium Unleaded Gasoline (91 Octane or higher recommended)

🔧 Transmission

Transmission 1:

8-Speed Steptronic Automatic Transmission

Transmission 2:

6-Speed Manual Transmission (Available on sDrive35i models with N55 engine)

Automatic Features:

Sport mode, manual shifting capability via paddle shifters or gear selector.

📐 Dimensions

Length:

170.5 inches (4330 mm)

Width:

73.1 inches (1855 mm)

Height:

50.5 inches (1283 mm)

Wheelbase:

98.3 inches (2496 mm)

Curb Weight Sdrive30I:

Approx. 3417 lbs (1550 kg)

Curb Weight Sdrive35I:

Approx. 3605 lbs (1635 kg)

Trunk Volume Top Up:

Approx. 9.9 cu ft (280 L)

Trunk Volume Top Down:

Approx. 5.4 cu ft (155 L)

🛡️ Safety Features

NHTSA Front Impact:

5-Star (for models equipped with optional side airbags and pretensioners)

IIHS Side Impact:

Good (for models with side airbags)

Stability Control:

Dynamic Stability Control (DSC) with Dynamic Traction Control (DTC)

Braking System:

Anti-lock Braking System (ABS), Electronic Brake-force Distribution (EBD), Brake Assist.

Tire Pressure Monitoring:

Yes (RPA - Reifen Pannen Anzeige)

Airbags:

Driver and front passenger airbags, front side-impact airbags, rollover protection system (integrated behind headrests).

Seatbelts:

Seatbelt pretensioners and force limiters.

💡 Technology Features

System Name:

iDrive (Professional or Business)

Display:

Central, high-resolution display (7-inch or 8.8-inch depending on system).

Navigation:

Optional Professional Navigation system with satellite maps and traffic information.

Audio:

AM/FM radio, CD player, MP3 compatibility, optional SiriusXM satellite radio, optional premium audio systems (e.g., Harman Kardon).

Parking Assistance:

Optional Park Distance Control (PDC) front and rear, optional rearview camera.

Adaptive Cruise Control:

Optional Adaptive Cruise Control (ACC) with Stop & Go functionality.

Bluetooth:

Standard Bluetooth connectivity for hands-free calling and audio streaming.

Usb Aux:

USB/Audio interface for iPod and other media devices.

Climate Control:

Dual-zone automatic climate control.

Seats:

Power-adjustable sport seats with driver memory, optional heated seats, optional ventilated seats.

🔧 Maintenance

Oil Change Interval:

Variable, based on Condition Based Service (CBS) system, typically 10,000-15,000 miles or annually. Consult manual for specific engine.

Brake Fluid Flush:

Every 2 years, regardless of mileage.

Engine Air Filter:

Inspect every 30,000 miles, replace as needed or every 60,000 miles (Varies by engine).

Cabin Air Filter:

Replace annually or every 15,000 miles.

Spark Plugs:

N55/N54: Approx. 60,000 miles. N20: Approx. 60,000 miles (Consult manual for precise intervals).

Engine Oil:

BMW Longlife-01 (LL-01) or BMW Longlife-04 (LL-04) synthetic oil, typically SAE 0W-30 or 5W-30. Consult manual for exact specification and viscosity based on engine and climate.

Coolant:

BMW Blue Coolant (Ethylene Glycol based) pre-mixed 50/50 with distilled water. Do NOT use universal coolants.

Brake Fluid:

DOT 4 High Performance Brake Fluid.

Transmission Fluid Auto:

ZF Lifeguard Fluid 8 (for 8-speed Steptronic). Not typically user-serviceable; requires specialized procedure.

Transmission Fluid Manual:

BMW MTF LT-3 or equivalent (e.g., Castrol Syntrans B 75).

Common Issue 1:

N55/N54 Engine: Potential for PCV valve failure, HPFP (High-Pressure Fuel Pump) issues, ignition coil degradation, carbon buildup on intake valves.

Common Issue 2:

Convertible Roof System: Hydraulic leaks, micro-switches failures, latch mechanism issues, drain cloggage leading to water ingress.

Common Issue 3:

Electrical: Water pump failures (electric), thermostat failures, various sensor issues, Idrive system glitches.

Common Issue 4:

Suspension: Worn control arm bushings, strut mount bearing failure, adaptive suspension component issues.

📚 Vehicle History

Bmw Roadsters:

BMW has a long history of producing iconic open-top sports cars, starting with the 328 in the 1930s, followed by the 507, the 3200CS, the 2002tii convertible, and the highly successful Z1, Z3, and Z8 models.

Z4 Generations:

The E89 Z4 is the second generation, replacing the E85/E86 Z4. It marked a significant shift with the adoption of a retractable hardtop instead of a soft-top, positioning it more as a grand tourer than a pure sports car.

Manufacturing Location:

Regensburg, Germany

Model Years E89:

2009-2016

🏆 Awards & Recognition

Ward Auto World Engine:

The N54 and N55 inline-six engines received multiple Ward's 10 Best Engines awards in their respective years.

Design Award:

The E89 Z4's design, particularly its flowing lines and retractable hardtop integration, was generally well-received by automotive critics.