Positioning:
Premium sports roadster/coupe, positioned as an engaging and driver-focused vehicle.
Competitors:
Porsche Boxster, Mercedes-Benz SLK, Audi TT, Chevrolet Corvette.
Vehicle Appeal:
Classic BMW driving dynamics, inline-6 engines, rear-wheel drive, distinctive styling, convertible experience (Roadster).
Value Proposition:
Official, licensed, and up-to-date factory information for DIY repairs and maintenance, offering significant cost savings over dealership service.
General Coverage:
Comprehensive service, repair, diagnostic, and maintenance information for the 2002 BMW Z3.
Estimated Pages:
Extensive (digital format, content equivalent to thousands of printed pages)
Type:
Official Service and Repair Manual Software (Digital)
Format:
Online Software / Digital Access
Powertrain:
Engine mechanical, engine management, fuel system, exhaust system, cooling system, lubrication system, driveline (rear-wheel drive, differential, drive axles).
Chassis:
Suspension (front and rear), steering system, braking system (ABS, DSC), wheel and tire specifications.
Electrical:
Wiring diagrams, electrical components, lighting, instruments and displays, power accessories, battery, charging system, starter system, infotainment, comfort electronics.
Body And Frame:
Body panels, doors, windows, convertible top mechanism (if applicable), interior trim, HVAC system, chassis and frame structure.
Maintenance:
Routine maintenance schedules, oil changes, filter replacements, fluid checks and top-offs, inspections.
Repair:
Engine repair and overhaul, transmission service and repair, brake component replacement, suspension and steering component repair, electrical system diagnostics and repair, HVAC system servicing.
Diagnostics:
Troubleshooting guides, symptom-based diagnostics, diagnostic trouble codes (DTCs), advanced diagnostic procedures.
Installation:
Component replacement procedures, accessory installation guidance.
Depth:
Factory-level detail, including step-by-step repair procedures, torque specifications, special tool requirements, and diagnostic flowcharts.
Accessibility:
Web-based access via browser, compatible with PC, laptop, smartphone, tablet.
Digital Quality:
High-resolution, clear diagrams, searchable text, up-to-date information.
Binding:
N/A (Digital Access)
Paper Type:
N/A (Digital Access)
Subscription Period:
1 Year (with option for renewal discounts)
Engine Code 2 5:
M52TUB25 (2.5L Inline-6)
Displacement 2 5:
2494 cc (152.2 cu. in.)
Bore Stroke 2 5:
84.0 mm x 75.0 mm
Compression Ratio 2 5:
10.2:1
Horsepower 2 5:
189 hp @ 6000 rpm
Torque 2 5:
236 Nm (174 lb-ft) @ 3500 rpm
Engine Code 3 0:
M54B30 (3.0L Inline-6)
Displacement 3 0:
2979 cc (181.8 cu. in.)
Bore Stroke 3 0:
84.0 mm x 89.6 mm
Compression Ratio 3 0:
10.2:1
Horsepower 3 0:
225 hp @ 5900 rpm
Torque 3 0:
289 Nm (213 lb-ft) @ 3500 rpm
Injection Type:
Electronic Fuel Injection (EFI) with Sequential Port Injection
Fuel Type:
Premium Unleaded Gasoline (91 octane or higher recommended)
Type:
DOHC (Double Overhead Camshafts), 4 valves per cylinder, VANOS (Variable Valve Timing)
Type 2 5:
5-Speed Manual (Getrag 260/5 or ZF S5-31)
Type 3 0:
5-Speed Manual (ZF S5-31)
Type:
5-Speed Steptronic Automatic Transmission (GM A5S325Z)
Rear Axle:
Limited-slip differential (LSD) available as an option or standard on M models.
Manual Transmission Fluid:
BMW MTF LT-1 or LT-2 (or equivalent API GL-4, SAE 75W-90)
Automatic Transmission Fluid:
BMW ATF LT-3 (or equivalent Dexron III/Mercon)
NHTSA Front Impact:
4/5 Stars (Driver), 4/5 Stars (Passenger)
IIHS Side Impact:
Acceptable (Roadster, specific year/testing variations apply)
Stability Control:
Optional Dynamic Stability Control (DSC) on some models.
Brakes:
Four-wheel disc brakes with ABS standard. Optional Traction Control (ASC+T) on some models.
Airbags:
Driver and front passenger airbags standard. Side airbags available on some models.
Rollover Protection:
Integrated rollover protection hoop structure behind the seats for Roadster models.
Audio System:
Standard AM/FM/CD stereo system. Optional Harman Kardon premium audio system available.
Navigation:
Optional BMW Business or Professional navigation systems available, typically with CRT screens.
Cruise Control:
Standard cruise control.
Parking Assist:
No factory-installed parking sensors or rearview cameras.
Phone Integration:
Optional cellular phone integration systems (e.g., Bluetooth modules were not standard in this era).
Oil Change Interval:
Variable Service Interval (VSI) system, typically 7,500 to 15,000 miles or based on driving conditions and oil quality sensor.
Spark Plug Replacement:
Approximately every 60,000 - 100,000 miles for iridium spark plugs (check specific engine variant).
Coolant Replacement:
Initial fill for life; subsequent changes recommended every 2-4 years or as per VSI system.
Brake Fluid Flush:
Every 2 years (DOT 4 fluid recommended).
Engine Oil Capacity 2 5:
Approx. 6.5 liters (6.9 quarts) with filter change.
Engine Oil Capacity 3 0:
Approx. 6.5 liters (6.9 quarts) with filter change.
Engine Oil Type:
BMW Longlife-01 (LL-01) or BMW Longlife-98 (LL-98) synthetic oil, SAE 0W-40 or 5W-30 recommended.
Coolant Type:
BMW Blue Antifreeze (G48) or equivalent ethylene glycol-based coolant with corrosion inhibitors.
M54 Oil Consumption:
The M54 engine can exhibit increased oil consumption due to PCV system issues or worn piston rings/valve stem seals.
Rear Main Seal Leaks:
Potential for oil leaks from the rear main seal.
Cooling System Components:
Plastic coolant expansion tanks and water pumps can become brittle and crack over time.
Suspension Bushings:
Worn control arm bushings and trailing arm bushings are common, affecting handling and ride quality.
Convertible Top Mechanism:
Hydraulic leaks or slow operation of the convertible top mechanism on Roadster models.
Mass Air Flow Sensor:
MAF sensor can become dirty or fail, leading to rough idle and poor performance.
Bmw Motorsport:
BMW has a long history of producing sporty, driver-focused cars, with a legacy in racing and performance engineering.
Z3 Introduction:
The Z3 was introduced in 1995 as BMW's first mass-produced roadster since the 507. It was designed to compete in the growing compact sports car segment.
Coupe Variant:
The Z3 Coupe (often nicknamed 'clown shoe') was introduced in 1998, offering a unique, distinctive styling and increased torsional rigidity.
Production Period:
1995-2002
Manufacturing Location:
Spartanburg, South Carolina, USA.
