This BMW 1 Series F40 service and repair manual is the factory-level reference for the third-generation 1 Series. Covering every model from 2018 to 2022, this downloadable PDF is written for both DIY owners and professional technicians, with clear step-by-step instructions for servicing and repairing every trim — from the 116d to the M135i xDrive — supported by wiring diagrams and factory specifications.
What’s inside this BMW F40 service manual
- Step-by-step service and repair instructions for every system
- Wiring diagrams and illustrations for electrical repairs
- Troubleshooting guides to help diagnose faults quickly
- Maintenance schedules and recommended service intervals
- Part numbers and technical specifications
- Labor time estimates to help plan every repair
Detailed trim information for BMW 1 Series F40
The BMW 1 Series F40 was offered in eight trims with a choice of diesel and petrol engines and front- or all-wheel drive. This manual is tailored to each trim:
- BMW 116d: Keep your diesel engine in top shape with precise maintenance and repair instructions.
- BMW 116i: Ensure smooth performance of your petrol engine with our step-by-step guide.
- BMW 118d & 118i: From engine diagnostics to routine checks, maintain your vehicle effortlessly.
- BMW 120d & 120d xDrive: Learn how to handle advanced maintenance and repairs, including xDrive-specific systems.
- BMW 120i: Take control of your car’s upkeep with detailed service instructions.
- BMW 128ti: Enjoy a sporty drive by following our manual for optimal performance.
- BMW M135i xDrive: Maintain the powerful engine and xDrive system of your M-series with specialized guidance.
About the BMW F40
The F40 is the third generation of the 1 Series, launched in 2019. Unlike its rear-drive predecessors, the F40 moved to BMW’s FAAR front-wheel-drive platform, freeing up more interior space while retaining the dynamic driving experience the brand is known for. Offered with petrol and diesel engines plus the sporty 128ti and M135i xDrive performance models, the F40 blends elegance with functionality — a popular choice for urban drivers seeking comfort, performance and advanced technology.
Looking for more 1 Series manuals? See our BMW 1 Series F20 manual, BMW 1 Series F21 manual and BMW 1 Series E87 manual.
Frequently asked questions
What model years does this BMW F40 manual cover?
This manual covers the 2018 to 2022 BMW 1 Series F40, including all trims.
Is the F40 front-wheel drive?
Yes. The F40 is the third-generation 1 Series, built on BMW’s FAAR front-wheel-drive platform.
Is this manual suitable for DIY owners?
Yes. The procedures are written clearly enough for DIY owners, while remaining detailed enough for professional technicians.
What format is the manual and how do I get it?
It is an instant PDF download. You can read it on a phone, tablet or computer, search it, and print the pages you need in the garage.
Does it include wiring diagrams?
Yes. Full wiring diagrams and illustrations are included, making electrical diagnosis much simpler.
Get your BMW 1 Series F40 service manual PDF
Keep your BMW 1 Series F40 running at its best. Download the service and repair manual today and get instant access to factory-level guidance for every maintenance and repair job.


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