BMW M6 S63 Engine Review

-

The BMW M6 S63 engine is an absolute beast. It powers high-performance M models like the F06, F12, and F13 M6—perfect for anyone who craves serious speed without giving up that signature BMW luxury.

But let’s be real—what do you do when this powerhouse needs new parts or even a full replacement?

That’s where finding a trustworthy source for used BMW S63 engines (especially models from 2012 onward) becomes super important. In this guide, we’ll walk you through what makes the S63B44B engine so special, why it's earned its spot as one of BMW’s most respected motors, and how to shop smart when you're on the hunt for quality used parts.

What Is the S63 Engine?

BMW’s S63 is the high-performance beast—a 4.4-litre twin-turbo V8 engineered with the M models in consideration. It is the brainchild from the N63 engine, but is further enhanced with serious improvements to push it to the next level. We’re talking about goodies like twin-scroll turbochargers in the “hot-vee” setup, direct fuel injection, Valvetronic variable valve timing, and Double-VANOS camshaft control.

One special variant, the S63B44B, is utilized in the F10 M5 as well as in the F06/F12/F13 M6. As normally aspirated, it creates about 560 horsepower, or over 600 hp with the optional Competition Package. It is powerful, to be sure, but it is also designed to provide instantaneous response as well as seamless, uninterrupted torque all the way through the rev band. In short, it is fun to drive

What Makes the S63 Engine So Popular?

The appeal of the S63 engine goes beyond speed. Here are some enticing features;

  • Daily drivability: While it delivers track-worthy performance, it’s also smooth enough for everyday use.

  • Tuning potential: It responds very well to performance upgrades, such as ECU remapping and exhaust modifications.

  • Advanced cooling and lubrication: The cooling system is designed to handle prolonged high-speed driving.

For M6 owners or enthusiasts seeking a replacement S63B44B engine, it's crucial to obtain parts that are either original or marked as aftermarket, ensuring the engine maintains its performance and reliability.

Common Issues with the S63 Engine

Even though the BMW S63 engine is advanced, it's not immune to wear and tear. Some known issues include:

  • Valve stem seal leaks (especially in higher mileage engines)

  • Carbon build-up on intake valves due to direct injection

  • Oil consumption (which can increase over time)

  • Coolant hose failures from long-term heat exposure

If you’re dealing with any of these issues, the key is finding high-quality used parts from a trusted dismantler. Swapping out a faulty turbocharger, valve cover, or even full S63 engine for sale should be done with OEM or well-documented aftermarket parts.

Choosing the Right Used S63 Engine or Parts

Looking for a replacement S63B44B engine or parts like turbochargers, intercoolers, or ECUs? Here’s what you need to keep in mind:

  • Match the engine code: Make sure you’re getting the S63B44B, which fits M6 models (F06, F12, F13) from 2012 to 2019.

  • Check mileage and condition: Don’t hesitate to ask for the engine’s mileage history, compression test results, or any inspection reports to get a clear picture of what you’re buying.

  • Know the warranty and returns: A good warranty gives you peace of mind, so be sure to understand the terms before you buy.

  • Ask about delivery: Some parts are heavy or delicate, so check how long shipping will take and how they handle it.

Delivery, Warranty, and Customer Confidence

At MT Auto Parts, we offer genuine OEM S63 engines and parts carefully pulled from BMW models starting from 2012. Whether you need an oil pump or a complete engine, almost every part is tested and verified before it is added to our inventory. If something’s aftermarket, we’ll let you know upfront describing it on our website. Additionally, our parts come with a 30-day warranty (terms apply) and typically ship quickly, often within 48 hours. For smaller parts under 20kg, delivery is even faster, arriving in just 24 hours in the UK mainland.

If your part doesn’t fit or isn’t quite what you expected, our precise Delivery & Returns and Warranty policies make fixing it hassle-free. 

FAQs

1. How do I know if an S63 engine is compatible with my BMW M6?

Compatibility starts with the engine code—in this case, the S63B44B for M6 models from 2012 to 2019 (F06, F12, F13). Before purchasing, verify the exact production year and body style of your vehicle to ensure a correct match. At MT Auto Parts, we will confirm this for you and can also advise on whether an engine or part is suitable for your vehicle.

2. Is it better to replace the whole engine or fix individual parts?

It depends on the damage. If your current S63B44B motor has suffered significant internal damage (cracked block, seized crankshaft), a full-engine swap might be more cost-effective.

3. Are used BMW S63 engines reliable?

Yes—if sourced from a reputable BMW breakers. OEM engines pulled from low-mileage or well-maintained donor cars can run smoothly for years. At MT Auto Parts, for example, we thoroughly test all engines before listing and include a 30-day warranty, providing you with peace of mind.
Location: Edinburgh, UK

Comments

Post a Comment

Popular posts from this blog

Which BMW Has the N47 Engine?

-
Image
  Photo of B47 Engine The N47 is one of BMW’s earlier engine models that was popular in their cars between 2007 and 2014. This diesel-powered engine was well-known for its high output and the fact that its fuel consumption was minimal. The production of the N47 engine served as a milestone for BMW, and it was the pioneer of better diesel engines in the later years, B37 and B47. Despite the perks of the N47 engine, there are still some drawbacks you should know if your car has this type of engine.  At the end of this post, you’ll have a good idea of the N47 engine, the car models it’s used in, key issues, and how to tell if your BMW has this engine. Insight Into the N47 Engine The BMW N47 engine started in 2007, and it replaced the older M47 version. The engine featured a variable-geometry turbocharger and a sequential twin-turbo. It also has a common rail direct injection fuel system and a water cooling system. There are different BMW N47 engine models, which have been tuned o...
Read more

How Do You Determine the Compatibility of Used BMW Car Parts?

-
Image
Maintaining a BMW is more than just driving a car; it's a commitment to quality, performance, and craftsmanship. Whether you're an expert enthusiast or a new owner, keeping your BMW in top condition requires attention to detail, especially when it comes to replacing parts.  With the plethora of options available in the aftermarket, selecting the right used BMW car parts can be scary. However, armed with knowledge and the right approach, you can navigate this process with confidence and ensure that your beloved BMW continues to deliver the driving experience you've come to expect. Understanding Your BMW Before beginning your search for used car parts, take the time to familiarize yourself with your BMW. Know the model, year, and specific fit of your vehicle. Understanding these details will serve as the foundation for identifying compatible parts later on. Additionally, familiarize yourself with the details of your BMW's engine, drivetrain, and electronics systems, as th...
Read more

5 Common Issues with BMW Head Units and How a Used Replacement Can Solve Them

-
Image
It is replete with luxury, precision, and high technology when one speaks of BMW's driving experience. The prime attribute that highlights this experience is the BMW head unit . It controls your infotainment, navigation, and communication systems. However, just like any other engine part, the head unit of a BMW may take a beating over time. If there are continued problems, spending on a used BMW head unit replacement will save a significant amount of work and cost. 1. Unresponsive or Frozen Screens This complaint is the loudest among BMW owners: the BMW car stereo system screen freezes or becomes unresponsive at times, or freezes altogether. This makes it impossible to control one's music, navigation, or phone connectivity. It takes a perfect experience and plants it firmly on the shoulders of equivalent frustration.  More often than not, this is a result of either outdated software, internal memory failure, or overheating components. A software upgrade may only be a tempora...
Read more