This comprehensive workshop repair service manual provides in-depth information and guidance for servicing and repairing your 2004-2010 Daihatsu Sirion (Boon) M300 Series. Covering all models and engines, this manual is a valuable resource for both professional mechanics and DIY enthusiasts. The manual includes detailed illustrations, exploded diagrams, drawings, and photos to guide you through every repair procedure.

Dive into detailed sections covering:

* **General Information:** Understand your vehicle's specifications, operation, and maintenance schedules.
* **Body, Frame & Mounting:** Learn about the vehicle's structure, body panels, and mounting systems.
* **Engine:** Explore the engine's inner workings, from disassembly and reassembly to troubleshooting and performance optimization.
* **Suspension:** Gain insight into suspension components, alignment procedures, and repair techniques.
* **Driveline:** Learn about the drive axles, differentials, and related components.
* **Brake System:** Master the principles of brake systems, including disc and drum brakes, and components like calipers and pads.
* **Transmission/Transaxle:** Understand the workings of your transmission, including removal, installation, and servicing.
* **Clutch:** Explore the complexities of clutch systems, including replacement and adjustment procedures.
* **Chains:** Discover how to inspect, service, and replace chains.
* **Exhaust:** Learn about exhaust system components, including mufflers, catalytic converters, and pipes.
* **Fuel:** Explore the fuel system, including fuel injectors, pumps, and lines.
* **Steering:** Gain knowledge of steering components, including power steering systems.
* **Shocks:** Understand the construction and function of shock absorbers.
* **Climate Control:** Learn about air conditioning and heating systems, including troubleshooting and repair techniques.
* **Instrumentation & Warnings Systems:** Explore the operation of gauges, warning lights, and other instruments.
* **Battery & Charging Systems:** Master the workings of the battery and charging systems.
* **Audio:** Explore the audio system and its components.
* **Lighting:** Understand the various lighting systems, including headlights, taillights, and interior lights.
* **Electrical Distribution:** Learn about the electrical system, including fuses, relays, and wiring diagrams.
* **Wiring:** Examine detailed wiring diagrams and understand electrical connections throughout the vehicle.

This comprehensive manual is designed to equip you with the knowledge and tools you need to perform a wide range of repairs and maintenance tasks on your Daihatsu Sirion (Boon). Save money, gain valuable experience, and enjoy the satisfaction of working on your car yourself.

The 2004-2010 Daihatsu Sirion (Boon) M300 Series, affectionately known as the "M300," was a compact hatchback that carved a niche for itself in the global automotive market. It was the second generation of the Sirion model, with the M300 designation signifying its platform and design iteration. This model was available in various markets with different names, including the Boon in Japan, the Sirion in the UK, and the YRV in some other regions. The M300 Sirion built on the success of its predecessor, boasting a more modern and rounded design, while retaining the practicality and fuel efficiency synonymous with Daihatsu vehicles. It was available in both three-door and five-door configurations, offering versatility for individual drivers and families alike. Under the hood, the Sirion M300 was powered by a range of 1.0-liter and 1.3-liter petrol engines, known for their reliability and fuel economy.

The M300 Sirion proved to be a popular choice thanks to its combination of practicality and affordability. Its compact size made it ideal for navigating urban environments, while its roomy interior and versatile cargo space ensured passenger comfort and ample storage. This, coupled with its fuel-efficient engines, made it a financially attractive option. The Sirion M300 was also known for its relatively low running costs and its reputation for reliability, making it a practical choice for drivers seeking an economical and dependable vehicle. However, despite its success, the M300 Sirion was eventually superseded by the M400 series, which further refined the design and features, offering an even more contemporary and compelling driving experience. The M300 legacy, however, remains strong, with many examples still on the road, providing reliable transportation to drivers around the world.