The factory SIS tells you how to turn a wrench. These guides tell you which wrench to pick up, why you are turning it, and what goes wrong when you do.
Every article here is written from actual experience wrenching on my own 720S — not summarized from a forum or generated from a template. If I have not done it myself, I do not write about it.
No dipstick, a rear-mounted oil tank, and a level check that lies to you if you do it at the wrong time. The complete change: 8.5L of 5W-40 ACEA A3/B4, the passenger-side cartridge filter, the 40 Nm sump plug, and the electronic level check sequence most owners get wrong.
The suspension flush nobody wants to do wrong. CHF 11S only, depressurize before any fitting moves, flush until the out runs clean, bleed until it's smooth, and verify the accumulator pre-charge. A high-pressure system handled the way it's supposed to be.
Why a C-clamp against that piston is the last thing you should ever do, and how to put the electronic parking brake into service mode so you can retract the piston safely, install the pads, and torque the caliper to 195 Nm.
Every service interval from the SIS consolidated into one checklist. A-Service, B-Service, brake fluid, coolant, differential oil — and where I disagree with McLaren on intervals.
Every fluid in one place: oil, brake fluid, coolant, differential oil, transmission fluid. Part numbers, quantities, torque specs for every drain plug. I keep a printed copy in my glovebox.
The issues real owners actually deal with — brake system warnings, battery drain, infotainment glitches, PCC faults, oil consumption. What the code means, what I did to fix it, and where the factory procedure falls short.
How to read trouble codes without panicking. Pending vs confirmed, what each code actually means, and why a $40 OBD2 scanner will miss half of what is wrong with your car.
Buying used? What to look for structurally, mechanically, and diagnostically. Red flags that should walk you away, and the MDS checks that reveal hidden problems.
Pre-track checklist, tire pressure strategy, brake pad selection and bedding, suspension setup, and post-track cooldown. Based on actual track days, not theory. If you're running it hard, the hydraulic flush interval is the one to pull forward.
How to read McLaren schematics — connector pinouts, wire colors, ground points, fuse boxes, and tracing a circuit from the diagram to the physical wire.
New guides are added based on real owner questions. Have a topic you want covered? Tell me.