This comprehensive service and repair manual is specifically designed for the BMW Z4 E85 E86 model year 2005. It provides detailed instructions and illustrations for all aspects of your vehicle's maintenance, service, and repair. With this manual, you'll have access to the same information used by technicians at BMW dealerships.

The manual covers a wide range of topics, including:

* **Maintenance:** Routine maintenance schedules, fluid checks and changes, filter replacements, and more.
* **Engine:** Detailed information on engine operation, diagnostics, repair procedures, and troubleshooting.
* **Control System:** Understanding and working with all the electronic systems in your vehicle.
* **Mechanical:** Comprehensive guidance on all mechanical components, including the transmission, suspension, brakes, steering, and more.
* **Fuel Service Specifications:** Precise specifications for fuel systems, including fuel injectors, fuel lines, and fuel pumps.
* **Emission Control:** Information on emission control systems and components, including catalytic converters and oxygen sensors.
* **Intake Exhaust Cooling:** Detailed information on the intake and exhaust systems, including cooling systems.
* **Lube:** Specific instructions and specifications for lubrication systems, including oil changes and filter replacements.
* **Ignition Starting Charging:** In-depth coverage of the ignition, starting, and charging systems, including battery maintenance and troubleshooting.
* **Auto Transmission Clutch:** Detailed procedures and diagrams for servicing and repairing automatic transmissions and clutches.
* **Manual Transmission:** Comprehensive instructions for maintaining and repairing manual transmissions.
* **Transfer Propeller Shaft:** Guidance on the transfer case, propeller shaft, and related components.
* **Drive Shaft:** Complete information for maintaining and repairing drive shafts.
* **Differential:** Detailed information on differentials, including repair procedures and troubleshooting.
* **Axle Suspension:** Complete coverage of axles and suspension systems, including diagnostics and repair.
* **Tire & Wheel:** Information on tire maintenance, wheel replacement, and alignment procedures.
* **Brake Control:** Detailed explanations of brake control systems, including ABS and other systems.
* **Brake:** Comprehensive information on brake systems, including brake pad and rotor replacement, and troubleshooting.
* **Parking Brake:** Instructions for inspecting, adjusting, and repairing parking brakes.
* **Steering Column:** Detailed information on the steering column, including repair and replacement procedures.
* **Power Steering:** Complete coverage of power steering systems, including diagnostics and repair.
* **Air Condition:** Guidance on air conditioning systems, including refrigerant charging and repair.
* **Suppl Restraint System:** Information on supplemental restraint systems (SRS) and airbags.
* **Seat Belt:** Detailed instructions on seat belt systems, including inspection, adjustment, and repair.
* **Engine Immobilizer:** Understanding and troubleshooting engine immobilizer systems.
* **Cruise Control:** Information on cruise control systems, including repair and adjustment.
* **Wiper & Washer:** Complete coverage of wiper and washer systems, including replacement and repair.
* **Door Lock:** Detailed instructions for inspecting, adjusting, and repairing door locks.
* **Meter Audio/Visual:** Information on instrument clusters, gauges, and audio/visual systems.
* **Horn:** Guidance on horn systems, including replacement and troubleshooting.
* **Windshield/Glass Mirror:** Instructions on windshield and mirror replacement and repair.
* **Instrument Panel:** Information on the instrument panel, including removal, repair, and reinstallation.
* **Seat:** Complete coverage of seats, including adjustment, repair, and replacement.
* **Engine Hood/ Door:** Detailed instructions on engine hood and door systems, including hinges and latches.
* **Exterior & Interior:** Information on exterior and interior components, including trim, upholstery, and accessories.
* **Electrical:** Complete coverage of electrical systems, including wiring diagrams and troubleshooting.
* **Multiplex/ Can Communication:** Understanding and working with multiplex and CAN communication systems.

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

The BMW Z4 E85 and E86, produced from 2003 to 2008, marked a significant shift in the Bavarian automaker's roadster lineup. Replacing the Z3, the Z4 aimed to provide a more refined and sporty driving experience. Available in both coupe and roadster configurations, the E85 and E86 models were built on a shortened version of the E46 3 Series platform, sharing its robust underpinnings and suspension technology. The heart of the Z4's performance resided in its powerful engine options, ranging from the 2.2-liter four-cylinder in the base model to the exhilarating 3.0-liter inline-six in the Z4 3.0i and the high-performance 3.2-liter inline-six found in the Z4 3.2i and M Coupe. These engines were coupled with either a six-speed manual transmission or a five-speed automatic gearbox, delivering spirited acceleration and engaging handling characteristics.

The E85 and E86 Z4's design was a departure from its predecessor, showcasing a more modern and aggressive aesthetic. The sleek lines, prominent front grille, and low-slung profile exuded a sense of purpose and dynamism. The interior was equally well-appointed, featuring high-quality materials, comfortable sport seats, and a well-laid-out dashboard. The Z4's focus on driver engagement was further evident in its precise steering, responsive throttle, and balanced chassis, making it a true enthusiast's car. Despite its sporty nature, the Z4 also offered a surprising level of practicality, with decent cargo space and a relatively comfortable ride for a roadster. The Z4 E85 and E86, with their potent engines, refined handling, and striking design, were a testament to BMW's commitment to building exhilarating and desirable roadsters.