The Liqui Moly Maintenance Service Kit - 136915 is a comprehensive kit of products designed to provide regular maintenance for a car. It includes a variety of essential products that help keep the car running smoothly and efficiently. The kit consists of the following contents:

1. Engine oil - This is a type of lubricant that is used to reduce friction and wear in the engine, ensuring smooth operation and extending the life of the engine.

2. Fuel system cleaner - This product helps to clean and maintain the fuel system, removing deposits and improving fuel efficiency.

3. Engine flush - This is a cleaning agent that is used to remove dirt, sludge, and other contaminants from the engine, promoting better performance and longevity.

4. Cooling system cleaner - This product helps to remove rust, scale, and other deposits from the cooling system, ensuring efficient heat transfer and preventing overheating.

5. Power steering fluid - This is a type of hydraulic fluid that is used to power the steering system, ensuring smooth and responsive steering.

6. Automatic transmission fluid - This is a type of lubricant that is used to reduce friction and wear in the transmission, ensuring smooth gear shifts and extending the life of the transmission.

7. Brake fluid - This is a type of hydraulic fluid that is used to transfer force from the brake pedal to the brakes, ensuring safe and effective braking.

8. Windshield washer concentrate - This product is used to clean the windshield and remove dirt, bugs, and other debris, ensuring clear visibility while driving.

Overall, the Liqui Moly Maintenance Service Kit - 136915 provides all the necessary products for regular maintenance of a car's engine, fuel system, cooling system, power steering, transmission, brakes, and windshield. It is a convenient and cost-effective solution for keeping a car in top condition.