24 Spark Plugs?! Replacing Them on a Mercedes S65 AMG

Ever wondered what it takes to change 24 spark plugs in a single engine? 😮 In this video, we’re diving under the hood of a Mercedes-Benz S65 AMG, powered by a 6.0L bi-turbo V12 engine. With 621 horsepower and 738 lb-ft of torque, this beast needs serious maintenance — and today, we’re replacing the spark plugs with a full walkthrough and real-world tips.

I’m Keith from OrtoTech Garage, and I’ll show you: ✔️ What it looks like to service a V12
✔️ Why this engine has 24 spark plugs
✔️ How to replace them with NGK Iridium plugs
✔️ Troubleshooting intermittent misfires
✔️ What tools you’ll need and how to avoid common mistakes

Whether you're a DIY car enthusiast, a Mercedes owner, or just curious about how exotic engines are serviced, this video breaks it all down step-by-step. No fluff, just real wrenching. 🛠️

👍 Like this video?

🔔 Subscribe for more DIY car repair tutorials, exotic engine guides, and step-by-step walkthroughs every week.

💬 Got a question or tip? Drop it in the comments — I’d love to hear from you!

⌚Time Stamps:
00:00 🚗 Intro – Welcome to OrtoTech Garage!
03:01 🧰 Starting disassembly – ducts & covers off
06:01 🔧 Removing coil packs & protecting intakes
09:03 🛠️ Accessing spark plugs deep in the V12
12:04 ⚙️ Breaking down bank one – careful process
15:04 🔩 Replacing plugs on the second bank
18:04 🧼 Cleaning components + inspecting coils
21:04 🔁 Reassembly tips & torque advice
24:04 💡 Final checks, startup, and results
27:04 👋 Wrap up – thoughts on the S65 and this job

👥Social Media:
X https://x.com/OrtoTechGarage
Facebook https://www.facebook.com/profile.php?...
Instagram https://www.instagram.com/ortotechgar...
TikTok   / ortotech.garage  

#ortotechgarage #autorepair #MercedesS65 #SparkPlugReplacement #DIYAutoRepair #V12Engine #OrtoTechGarage #NGKSparkPlugs #MisfireFix #MercedesMaintenance #CarRepairDIY #TwinTurboV12 #GarageTutorial #CarCareTips #HighPerformanceCars

As an ASE Certified Master Auto Technician, I strive to provide accurate and reliable information. However, this video is intended for general educational purposes only and should not be considered specific professional advice. The OrtoTech Garage and its representatives are not liable for any damages, injuries, or losses resulting from the use or misuse of the content presented. Always consult your vehicle’s owner manual or a qualified professional for repairs or modifications. Viewers assume all responsibility for their own actions.