720smanual.com is an independent, owner-built repair companion for the McLaren 720S. It brings the full 720S service documentation — repair procedures, wiring diagrams, torque values, fluid data, and every published TSB — out of the dealer-only software and into your browser, free. On top of that reference I've written my own guides for the jobs I've actually done on my car, with the gotchas, tool choices, and real-world notes the factory documentation doesn't cover.
McLaren keeps its service documentation inside factory software that only dealers can access. Independent shops and owners who want to service their own vehicles have no official path to it. The alternative — piecing together repair procedures from forum threads and hoping the torque spec someone posted in 2019 was correct — isn't acceptable on a car with hydraulic suspension operating at high pressure and a lithium battery that requires specific charging protocols.
I built this because I needed it. The first job that pushed me over the edge was an accumulator replacement where I spent more time validating a single hydraulic line torque figure than I did on the actual repair. That shouldn't happen. So I built a browser-based repair companion: the complete 720S service documentation, organized the way a repair actually gets done, with my own guides and notes layered on top — and I made it available to anyone who needs it.
It's free to use. I've added Google AdSense ads to cover server costs. If that ever offends anyone, use an ad blocker — the content will still be there either way.
The documentation follows the same hierarchy the factory uses: by vehicle system, then by document type within each system. The main system categories are:
Not all 111 TSBs are equal. A few are critical enough that I'd recommend reading them before doing any service work on the car:
The full searchable TSB index is at 720smanual.com/tsbs.html.
I make mistakes. Organizing a full service manual by hand is painstaking but not infallible, and the owner-written guides reflect my experience on my car, which may differ from yours. If you find an error in a procedure, a wrong torque figure, or a broken diagram — please contact me with the document ID and what's wrong. I'd much rather fix it than have someone strip a thread or damage a component because of bad data on this site.
This site covers service documentation and owner-written guides — not diagnostic software. For MDS (the McLaren-specific diagnostic tool required for ECU programming, adaptations, and calibrations), the community resource is mcltech.net.
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