Vehicle Segment:
Premium Two-Seater Sports Roadster
Key Competitors 2004:
Porsche Boxster, Mercedes-Benz SLK, Audi TT Roadster, Chevrolet Corvette (early C6)
Vehicle Appeal:
Sporty handling, powerful inline-six engine, premium interior, convertible experience, BMW brand prestige
Owner Empowerment:
Enables owners to confidently perform maintenance and understand complex repairs, saving on dealership service costs.
Coverage Scope:
Operation, Maintenance, Service, Basic Repairs
Estimated Page Count:
High (Detailed service manuals typically range from 500-1500+ pages)
Manual Classification:
Comprehensive Service and Repair Manual (Owner's Manual functions included)
Powertrain:
Engine mechanical, fuel system, ignition system, exhaust system, cooling system, lubrication system
Drivetrain:
Transmission (manual and automatic), clutch, driveshafts, differential, axles
Chassis:
Suspension (front and rear), steering system, brakes (hydraulic, ABS), wheels and tires
Electrical:
Battery, charging system, starting system, lighting, instruments, control modules (ECU, DME), body electronics, diagnostics (OBD-II)
Body:
Body panels, doors, windows, convertible top mechanism, interior trim, seats
Maintenance Tasks:
Oil change, filter replacement, spark plug replacement, coolant flush, brake fluid change, belt inspection and replacement, tire rotation
Diagnostic Procedures:
Troubleshooting charts, fault code interpretation, component testing
Repair Procedures:
Engine component removal and installation, transmission overhaul, brake system repair, suspension component replacement, electrical component repair
Specifications And Data:
Torque specifications, fluid capacities, clearances, diagnostic parameters, wiring diagrams
Depth Of Coverage:
Comprehensive; covers routine maintenance to advanced diagnostics and major component repairs. Includes factory-level technical details.
Digital File Type:
PDF (Portable Document Format)
Print Readability:
High Resolution, Suitable for printing specific sections or the entire manual.
Digital Binding:
N/A (Digital Download)
Digital Paper Simulation:
N/A (Digital Download)
Text Searchability:
Likely Searchable Text (depending on PDF creation)
Engine Type:
Naturally Aspirated Inline 6-Cylinder
Displacement:
2996 cc (3.0 Liters)
Bore X Stroke:
85.0 mm x 88.0 mm
Compression Ratio:
10.7:1
Valve Train:
Double Overhead Camshafts (DOHC), 24 Valves, VANOS (Variable Valve Timing)
Horsepower:
225 hp (168 kW) @ 6100 rpm
Torque:
214 lb-ft (290 Nm) @ 3500 rpm
Fuel Delivery:
Sequential Multi-Port Fuel Injection (Bosch Motronic ME9.2)
Fuel Type:
Premium Unleaded Gasoline (91+ Octane Recommended)
Coolant Capacity:
Approximately 7.0 Liters (with heater)
Coolant Type:
BMW Blue Ethylene Glycol Antifreeze
Oil Capacity:
Approximately 6.5 Liters (7.0 US quarts) with filter
Recommended Oil Viscosity:
SAE 0W-30 (BMW Longlife-01 FE or equivalent)
Transmission Type Standard:
6-Speed Manual Transmission
Transmission Type Optional:
6-Speed Steptronic Automatic Transmission
Steptronic Functionality:
Allows manual gear selection via selector lever or paddle shifters (if equipped)
Manual Transmission Fluid Type:
BMW MTF LT-2 or equivalent
Automatic Transmission Fluid Type:
BMW ATF LT-2 or equivalent
NHTSA Front Impact Driver:
5-Star (for comparable models of the era)
NHTSA Front Impact Passenger:
5-Star (for comparable models of the era)
Traction Control:
Dynamic Traction Control (DTC) and/or Automatic Stability Control (ASC+T)
Brake Assist:
Yes (part of ABS system, enhances braking in emergency situations)
Electronic Stability Control:
Dynamic Stability Control (DSC)
Airbags:
Front dual-stage airbags, side airbags integrated into seats
Rollover Protection:
Pop-up rollover protection bars behind seats
Seatbelts:
Three-point inertia-reel seatbelts with pretensioners and force limiters
Infotainment System Name:
BMW Business CD (standard), BMW Professional CD (optional)
Optional Features:
Navigation System (MK4), premium audio systems (e.g., Harman Kardon), CD changer
Parking Sensors:
Optional (Rear Park Distance Control - PDC)
Connectivity Features:
Bluetooth preparation (optional), USB interface (rare for this year, often aftermarket)
Oil Change Interval:
Variable; based on 'Condition Based Service' (CBS) system, typically around 10,000-15,000 miles or annually. Refer to manual for specific indicators.
Brake Fluid Change:
Every 2 years (BMW recommended)
Coolant Change:
Initial change at first major service, then every 2-4 years thereafter (BMW Blue coolant).
Spark Plug Replacement:
Around 60,000 miles (check manual for specific plug type and torque)
Power Steering Fluid:
Pentosin CHF 11S or equivalent hydraulic fluid
Brake Fluid:
DOT 4 (BMW High Performance DOT 4)
Common Wear Items:
Clutch wear, suspension bushings, drive belts, water pump, VANOS solenoids (though N52 is generally more robust than earlier M54)
Convertible Top Issues:
Hydraulic system leaks, sensor issues, fabric wear (regular inspection and lubrication recommended)
Oil Filter Element Example:
Mann-Filter HU 834 x or Mahle OX 71/3 D (Consult manual or parts catalog for definitive fitment)
Bmw Roadster Legacy:
Continues BMW's long tradition of producing acclaimed roadsters, following iconic models like the 507, 328, and Z3.
E85 Generation:
First generation Z4 (E85/E86), replacing the Z3. Known for sharper styling and improved driving dynamics.
Production Period E85:
2002-2008
Manufacturing Location:
Spartanburg, South Carolina, USA
