Diagnostic trouble codes (DTCs) interpretation, common fault diagnosis, electrical system troubleshooting, engine performance issues.
Engine Repair:
Engine removal and installation, cylinder head gasket replacement, piston and connecting rod replacement, crankshaft and bearing replacement, valve guide and seal replacement.
Torque specifications for all fasteners, fluid capacities and types, engine performance data, dimensions, electrical schematics.
Technical Depth
Depth:
Comprehensive, covering all aspects from basic maintenance to complete engine and transmission rebuilds, including detailed diagnostics and wiring diagrams.
📊 Manual Specifications
File Format
Compatibility:
Compatible with all PC & MAC Computers, tablets, and mobile phones.
Required Software:
Adobe Reader (free download available).
Print Quality
Print Option:
Printable by page, chapter, or entire manual.
Binding Type
Binding:
N/A (Digital Download)
Paper Type
Paper:
N/A (Digital Download)
⚙️ Engine Specifications
Primary Engine
Engine Code Sdrive30I:
N52B30
Displacement Sdrive30I:
2,996 cc (3.0 Liters)
Configuration Sdrive30I:
Naturally Aspirated Inline-6 Cylinder
Horsepower Sdrive30I:
255 hp @ 6,600 rpm
Torque Sdrive30I:
220 lb-ft (295 Nm) @ 2,750 rpm
Secondary Engine
Engine Code Sdrive35I:
N54B30T
Displacement Sdrive35I:
2,979 cc (3.0 Liters)
Configuration Sdrive35I:
Twin-Turbocharged Inline-6 Cylinder
Horsepower Sdrive35I:
300 hp @ 5,800 rpm
Torque Sdrive35I:
300 lb-ft (407 Nm) @ 1,350 rpm
Fuel System
Fuel Injection:
Direct Injection (sDrive35i), Port Injection (sDrive30i).
BMW ATF recommendations for specific transmission types (e.g., Shell M-1375.4 or equivalent for 6-speed auto, Pentosin FFL-3 for M-DCT).
📐 Dimensions
Exterior
Length:
160.4 inches (4,073 mm)
Width:
70.2 inches (1,783 mm)
Height:
52.5 inches (1,334 mm)
Wheelbase:
98.3 inches (2,496 mm)
Weights
Curb Weight Sdrive30I:
Approximately 3,400 - 3,550 lbs (1,542 - 1,610 kg)
Curb Weight Sdrive35I:
Approximately 3,650 - 3,800 lbs (1,656 - 1,724 kg)
Cargo
Trunk Volume Hardtop Up:
10.9 cu ft (309 liters)
Trunk Volume Hardtop Down:
5.7 cu ft (162 liters)
🛡️ Safety Features
Ratings
NHTSA Front Impact Driver:
Not Explicitly Tested for this Specific Model Year/Variant by NHTSA
IIHS Front Small Overlap Driver:
Not Explicitly Tested for this Specific Model Year/Variant by IIHS
Active Features
ABS:
Standard (Anti-lock Braking System)
Dsc:
Standard (Dynamic Stability Control)
Traction Control:
Standard (Traction Control System)
Brake Assist:
Standard
Tire Pressure Monitoring:
Standard
Passive Features
Airbags Front:
Driver and front passenger airbags
Airbags Side:
Side-impact airbags integrated into seats
Head Protection:
Air curtain head protection airbags
Rollover Protection:
Pop-up roll bars concealed behind headrests
Seatbelts:
Three-point inertia-reel seatbelts with front pretensioners and belt force limiters
💡 Technology Features
Infotainment
Infotainment System:
BMW iDrive system (CCC or CIC, depending on options).
Navigation:
Optional Professional Navigation System with high-resolution display.
Audio System:
Standard BMW Professional Radio with CD player, optional Harman Kardon surround sound system.
Driver Assistance
Parking Assistance:
Optional Park Distance Control (PDC) front and rear.
Cruise Control:
Standard cruise control, optional Adaptive Cruise Control (ACC) on some models.
Connectivity
Bluetooth:
Standard Bluetooth connectivity for hands-free calling and audio streaming (with optional phone integration).
Usb Aux:
USB and AUX inputs for audio devices.
Other Features
Keyless Entry:
Standard keyless entry, optional Comfort Access System for keyless ignition and entry.
🔧 Maintenance
Service Intervals
Oil Change Interval:
BMW Condition Based Service (CBS) system typically recommends oil changes based on driving conditions, usually between 7,500 - 15,000 miles (12,000 - 24,000 km) or annually, whichever comes first.
Air Filter Replacement:
Recommended every 30,000 miles (48,000 km) or as indicated by CBS.
Cabin Filter Replacement:
Recommended every 15,000 miles (24,000 km) or annually.
Spark Plug Replacement N52:
Typically at 60,000 miles (96,000 km) for N52 engines using Long Life spark plugs (e.g., NGK SILZKR7C11S).
Spark Plug Replacement N54:
Typically at 45,000 miles (72,000 km) for N54 engines due to higher stress from turbocharging (e.g., NGK SILZKR7B11).
Brake Fluid Flush:
Recommended every 2 years, regardless of mileage.
Fluid Specifications
Engine Oil Specification:
BMW Longlife-01 (LL-01) or BMW Longlife-04 (LL-04) compliant synthetic oil, typically 0W-30 or 5W-30 depending on climate and engine variant. Consult manual for precise spec.
Coolant Specification:
BMW Blue Antifreeze/Coolant (G48 specification) or equivalent. Typically a 50/50 mix with distilled water.
Brake Fluid Specification:
DOT 4 High Performance Brake Fluid.
Power Steering Fluid:
Pentosin CHF 11S or CHF 202 (Green fluid, check reservoir cap for exact type).
Known Issues
Common Issues N54 Engine:
High-pressure fuel pump (HPFP) failure, injector issues, turbocharger wastegate rattle/failure, oil leaks from valve cover gasket or oil filter housing.
Common Issues Convertible Top:
Hydraulic pump or cylinder leaks, motor failure, sensor issues affecting operation.
Common Issues Electrical:
Water ingress into modules (e.g., FRM module causing lighting issues), battery drain, sensor failures (e.g., ABS sensors).
Common Issues Suspension:
Worn control arm bushings, worn strut mounts, clunks from the rear subframe.
📚 Vehicle History
Brand Heritage
Heritage:
BMW has a long-standing reputation for producing sporty, driver-oriented vehicles, dating back to its early roadsters like the 328 and the iconic 507.
Model Evolution
Predecessors:
The Z4 (E85/E86) generation (2002-2008) introduced the convertible and coupe bodystyles, and the E89 generation refined the design with a retractable hardtop and updated technology.
Generation E89 Introduction:
The E89 generation debuted in 2009 for the 2009 model year, replacing the E85 roadster and E86 coupe. It featured a new retractable hardtop and a longer, more sculpted body.
Production
Production Location:
Regensburg, Germany
Production Years E89:
2009-2016
🏆 Awards & Recognition
Recognitions
Initial Reception:
The Z4 (E89) was generally well-received for its improved ride comfort, sophisticated retractable hardtop, and potent engine options, particularly the sDrive35i.
Design Awards:
The E89 generation's design was considered a departure from the more aggressive lines of its predecessor, adopting a sleeker, more mature aesthetic that resonated with a broader audience.
Ratings
Performance Ratings:
Consistently rated highly by automotive publications for its handling, acceleration (especially sDrive35i), and open-air driving experience.