This comprehensive BMW Z4 E85 E86 2002 Service and Repair Manual provides detailed instructions and illustrations for maintaining, servicing, diagnosing, and repairing your vehicle. It covers all models and all repairs, from basic maintenance to complex engine overhauls.

The manual includes step-by-step instructions, diagrams, illustrations, wiring schematics, and specifications, ensuring you have everything you need to complete repairs with ease. You'll find information on a wide range of topics, including:

* **Maintenance:** Regular upkeep, fluid changes, filter replacements, and more.
* **Engine:** Troubleshooting, rebuilding, and repair procedures for all engine components.
* **Control System:** Diagnosis and repair of electronic control units (ECUs) and sensors.
* **Mechanical:** Comprehensive coverage of the vehicle's mechanical systems, including the transmission, suspension, brakes, and steering.
* **Fuel Service Specifications:** Detailed information on fuel systems, including injection systems, fuel lines, and fuel tanks.
* **Emission Control:** Diagnosis and repair of emissions control systems, including catalytic converters, oxygen sensors, and evaporative emission systems.
* **Intake Exhaust Cooling:** Thorough coverage of the intake and exhaust systems, including air intake systems, exhaust manifolds, and cooling systems.
* **Lube:** Proper lubrication procedures for all components, including engine oil, transmission fluid, and differential fluid.
* **Ignition Starting Charging:** Diagnosis and repair of ignition systems, starting systems, and charging systems.
* **Auto Transmission Clutch:** Comprehensive information on automatic transmissions, including troubleshooting, repair, and rebuild procedures.
* **Manual Transmission:** Complete coverage of manual transmissions, including troubleshooting, repair, and rebuild procedures.
* **Transfer Propeller Shaft:** Diagnosis and repair of transfer cases and propeller shafts.
* **Drive Shaft:** Inspection, repair, and replacement of drive shafts.
* **Differential:** Diagnosis and repair of differentials.
* **Axle Suspension:** Troubleshooting, repair, and replacement of axle and suspension components.
* **Tire & Wheel:** Information on tire and wheel specifications, maintenance, and repair.
* **Brake Control:** Diagnosis and repair of brake control systems, including anti-lock braking systems (ABS) and electronic stability control (ESC).
* **Brake:** Complete coverage of the brake system, including brake calipers, rotors, pads, and hydraulic lines.
* **Parking Brake:** Troubleshooting and repair of parking brake systems.
* **Steering Column:** Diagnosis and repair of steering columns.
* **Power Steering:** Inspection, repair, and replacement of power steering systems.
* **Air Condition:** Diagnosis and repair of air conditioning systems, including refrigerant charging and component replacement.
* **Suppl Restraint System:** Detailed information on the supplemental restraint system (SRS), including airbags and seat belts.
* **Seat Belt:** Troubleshooting and repair of seat belt systems.
* **Engine Immobilizer:** Diagnosis and repair of engine immobilizer systems.
* **Cruise Control:** Troubleshooting and repair of cruise control systems.
* **Wiper & Washer:** Inspection, repair, and replacement of wiper and washer systems.
* **Door Lock:** Diagnosis and repair of door lock systems.
* **Meter Audio/Visual:** Troubleshooting and repair of instrument cluster and audio/visual systems.
* **Horn:** Inspection, repair, and replacement of horn systems.
* **Windshield/Glass Mirror:** Information on windshield and mirror specifications, replacement, and repair.
* **Instrument Panel:** Diagnosis and repair of the instrument panel.
* **Seat:** Troubleshooting and repair of seat adjustments, heating, and ventilation.
* **Engine Hood/ Door:** Troubleshooting and repair of engine hood and door latches and hinges.
* **Exterior & Interior:** Information on the vehicle's exterior and interior components, including trim, upholstery, and lighting.
* **Electrical:** Detailed coverage of the electrical system, including wiring diagrams, fuses, and circuit breakers.
* **Multiplex/ Can Communication:** Diagnosis and repair of multiplex and CAN communication systems.

This comprehensive manual provides everything you need to confidently maintain and repair your BMW Z4 E85 E86.

The BMW Z4 E85/E86, produced from 2002 to 2008, marked the return of the roadster to the BMW lineup after a 13-year hiatus. This dynamic two-seater, available in both coupe (E86) and roadster (E85) forms, embodied the essence of sporty driving. Building upon the legacy of the Z3, the Z4 aimed to deliver a more refined and luxurious experience while retaining the spirit of its predecessor. The Z4 sported a sleek, modern design with a long hood, low-slung profile, and a flowing, muscular body. Underneath, the Z4 offered a choice of powerful and efficient engines, ranging from the 2.2-liter four-cylinder in the base model to the potent 3.0-liter inline-six in the 3.0i and the 3.2-liter inline-six in the 3.2i. For those seeking even more thrills, the Z4 M offered a 3.2-liter inline-six with M-specific tuning, delivering a truly exhilarating performance.

Beyond its sporty nature, the Z4 E85/E86 boasted a well-appointed interior with a focus on driver comfort and convenience. Premium materials, a well-designed dashboard, and comfortable seats created a luxurious atmosphere. The Z4 also incorporated a number of advanced features for its time, including stability control, traction control, and optional heated seats and a navigation system. The Z4 E85/E86 achieved critical acclaim for its handling, performance, and stylish design, solidifying its position as a worthy successor to the Z3 and establishing itself as a true icon in the roadster segment. Its legacy continues to inspire generations of drivers and collectors who appreciate its combination of classic roadster charm and modern performance.