This comprehensive service and repair manual provides in-depth information on maintaining, servicing, diagnosing, and repairing your 2007 BMW 3-series (E90/E91/E92/E93). It's the same manual used by technicians at authorized dealerships, offering detailed instructions, diagrams, illustrations, wiring schematics, and specifications to help you confidently tackle any repair. The manual covers a wide range of topics, including:

* **Maintenance:** Regular maintenance schedules, fluid checks, filter replacements, and other essential procedures to keep your vehicle running smoothly.
* **Engine:** Detailed information on the engine, including its various components like the cylinder head, crankshaft, pistons, and valves. Learn about troubleshooting engine problems, performing repairs, and understanding engine performance.
* **Control System:** Comprehensive coverage of the engine control system, addressing topics like fuel injection, ignition systems, and electronic sensors. Learn how to diagnose and repair issues with the engine's electronic controls.
* **Mechanical:** The manual provides detailed information on the mechanical aspects of your BMW, including the transmission, drivetrain, suspension, and steering systems. It covers troubleshooting, repair procedures, and component diagrams for each system.
* **Fuel Service Specifications:** This section includes detailed information on fuel systems, including fuel injectors, fuel lines, fuel pumps, and fuel tanks. Learn how to troubleshoot fuel system problems and perform repairs.
* **Emission Control:** Covers the emissions control system, including catalytic converters, oxygen sensors, and other components. Learn how to diagnose and repair issues related to emissions.
* **Intake Exhaust Cooling:** Provides detailed information on the intake and exhaust systems, including the intake manifold, exhaust manifold, and cooling systems. Learn how to troubleshoot and repair issues related to these systems.
* **Lube:** Covers lubrication systems, including oil changes, oil filters, and other lubrication-related topics. Learn how to properly lubricate your vehicle for optimal performance.
* **Ignition Starting Charging:** This section delves into the ignition system, starting system, and charging system, providing information on troubleshooting and repairing issues related to these components.
* **Auto Transmission Clutch:** Detailed information on automatic transmissions, including troubleshooting and repair procedures for common issues.
* **Manual Transmission:** Comprehensive coverage of manual transmissions, including troubleshooting and repair procedures for common issues.
* **Transfer Propeller Shaft:** Detailed information on the transfer case and propeller shaft, including troubleshooting and repair procedures for common issues.
* **Drive Shaft:** Information on the driveshaft, including troubleshooting and repair procedures for common issues.
* **Differential:** Detailed information on the differential, including troubleshooting and repair procedures for common issues.
* **Axle Suspension:** Comprehensive coverage of the axle and suspension systems, including troubleshooting and repair procedures for common issues.
* **Tire & Wheel:** Information on tires and wheels, including troubleshooting and repair procedures for common issues.
* **Brake Control:** Detailed information on the brake control system, including troubleshooting and repair procedures for common issues.
* **Brake:** Covers brake system components like calipers, rotors, pads, and lines. Learn how to diagnose and repair brake system issues.
* **Parking Brake:** Information on the parking brake system, including troubleshooting and repair procedures for common issues.
* **Steering Column:** Covers the steering column, including troubleshooting and repair procedures for common issues.
* **Power Steering:** Information on the power steering system, including troubleshooting and repair procedures for common issues.
* **Air Condition:** Information on the air conditioning system, including troubleshooting and repair procedures for common issues.
* **Suppl Restraint System:** Detailed information on the supplemental restraint system (SRS), including airbags, seatbelt pretensioners, and other safety features.
* **Seat Belt:** Information on seatbelts, including troubleshooting and repair procedures for common issues.
* **Engine Immobilizer:** Covers the engine immobilizer system, including troubleshooting and repair procedures for common issues.
* **Cruise Control:** Information on the cruise control system, including troubleshooting and repair procedures for common issues.
* **Wiper & Washer:** Covers the windshield wiper and washer system, including troubleshooting and repair procedures for common issues.
* **Door Lock:** Information on the door lock system, including troubleshooting and repair procedures for common issues.
* **Meter Audio/Visual:** Covers the instrument panel, audio system, and visual displays, including troubleshooting and repair procedures for common issues.
* **Horn:** Information on the horn system, including troubleshooting and repair procedures for common issues.
* **Windshield/Glass Mirror:** Covers the windshield, glass, and mirrors, including troubleshooting and repair procedures for common issues.
* **Instrument Panel:** Covers the instrument panel, including troubleshooting and repair procedures for common issues.
* **Seat:** Covers the seats, including troubleshooting and repair procedures for common issues.
* **Engine Hood/ Door:** Covers the engine hood and doors, including troubleshooting and repair procedures for common issues.
* **Exterior & Interior:** Covers the exterior and interior of the vehicle, including troubleshooting and repair procedures for common issues.
* **Electrical:** This section addresses the vehicle's electrical system, covering topics like wiring diagrams, fuse boxes, and electrical troubleshooting.
* **Multiplex/ Can Communication:** Provides information on the multiplex and CAN communication systems, which are crucial for controlling various vehicle functions.

This comprehensive manual is a valuable resource for anyone who wants to understand their 2007 BMW 3-series and perform their own repairs.

The BMW 3-Series (E90, E91, E92, E93) is a range of compact executive cars produced by German automaker BMW from 2004 to 2012. This generation marked a significant departure from its predecessor, the E46, with a new platform, design, and technology. The E90 was available as a four-door sedan, the E91 as a five-door wagon, the E92 as a two-door coupe, and the E93 as a two-door convertible. All models shared a common platform, known as the E9x, and were offered with a wide range of engines, including petrol and diesel units. The E90 generation saw a significant shift towards using more powerful and efficient engines, with the introduction of the N52 and N54 inline-six engines. The N54, in particular, was a groundbreaking engine, featuring twin turbochargers and direct injection, setting a new standard for performance and efficiency.

The E90 3-Series was praised for its handling, performance, and interior quality. The car's suspension was finely tuned, providing a balance between comfort and sportiness. The driving experience was engaging, thanks to precise steering and powerful engines. The interior featured a driver-focused cockpit with high-quality materials and intuitive controls. The E90 also introduced several innovative features, including the iDrive infotainment system, which allowed drivers to control various car functions through a central rotary knob. Despite its success, the E90 3-Series wasn't without its flaws. Some owners reported issues with engine reliability, particularly with the N54 engine, which was prone to problems with high-pressure fuel pumps and turbochargers. The iDrive system, while innovative, was also criticized for its complexity and user-unfriendliness. Despite these shortcomings, the E90 3-Series remains a popular and desirable car, prized for its performance, handling, and style.