Tune in to tune up. Listen to your 840i and schedule an engine tune-up at the first strange squeak, clunk, or click. Make an appointment today.
Is your engine overdue for a tune-up? If you're the type of driver who waits for something to go wrong with your vehicle, it might be time to change your ways, particularly if you want to keep your 2025 BMW 840i in tip-top shape. Periodic tune-ups can bring more power back to your 840i’s engine. Tune-ups help your engine start smoothly and run efficiently, which can mean better fuel economy (a win for you) and lower emissions (a win for the environment). When you follow the guidelines specified by BMW for your vehicle’s tune-up schedule, you can rest assured you’re investing in your 840i’s long-term engine performance.
Your nearest Firestone Complete Auto Care location has several options to choose from when it comes to BMW 840i engine tune-up services. One option is the standard Firestone Tune-Up. It includes a complete visual inspection of engine components, installation of new spark plugs, and a lifetime warranty on parts*. A second service option replaces the air and fuel filter in your 840i. Our third service is a thorough cleaning of the fuel system. During this type of tune-up, we use a three-step process to get rid of harmful varnish, dirt, and carbon deposit buildup in your 840i’s fuel injectors, throttle body, and throttle plate. The result? Restored fuel system performance. Keep in mind that your 840i's mileage and maintenance history can uniquely impact its tune-up needs. A one-size-fits-all engine tune-up procedure doesn’t necessarily exist. Chat with a Firestone technician before you jump into a specific service to ensure your engine tune-up money is well-spent.
If you’re looking for 2025 840i engine tune-up services, head to Firestone Complete Auto Care. Follow BMW's recommended maintenance schedule or book an appointment as soon as you notice one of the following: shaking while the engine is idling, poor fuel economy, knocking noises in the engine, or a lit up check engine light on your dashboard.
*Check with a teammate at Firestone Complete Auto Care for complete terms and conditions regarding warranties.
We know it’s not just a car, it’s your car. We’ll help you properly maintain your BMW 840i to keep it on the road and running smoothly. Learn more about maintenance below.
Nothing lasts forever. Even your BMW 840i's many parts and pieces. When something breaks, we're ready. Click on a repair below to learn more about 2025 BMW 840i repairs.