What happens if my BMW 840i spark plugs fail?

When it’s time to replace the spark plugs, don’t delay. These small (but vital!) parts provide the electric spark that your car needs in order to start, and old spark plugs can prevent your car from starting at all. Replace spark plugs on time or about every 30,000 miles or so.

What should I do if I see leaks under my 840i?

Puddles could indicate that your vehicle is leaking coolant, oil, or brake fluid. Ignoring these leaks can lead to permanent engine damage, so address these symptoms ASAP with a tune-up service.

Are hard starts and stops bad for my BMW 840i engine?

Hard stops and starts can lead to premature wear on your engine’s components. Lighten up that lead foot and opt for steady, fluid starts and stops instead. Your engine (and your passengers!) will thank you.

Where can I have a BMW 840i tune-up done?

At your local Firestone Complete Auto Care! Our technicians know how to service, maintain, and repair BMW 840is.

How often should I clean my BMW 840i fuel injectors?

The frequency at which car fuel injectors should be cleaned can vary depending on several factors, including the type of fuel used and the driving conditions. Some manufacturers generally recommend a fuel system cleaning as part of your general car maintenance, or as needed based on symptoms of poor fuel system performance.

Who performs BMW 840i tune-ups?

Visit your nearby Firestone Complete Auto Care for BMW 840i tune-ups and more. Schedule your appointment online and save big by checking out our latest offers.

2023 BMW 840i Engine Tune-Ups & Maintenance

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Schedule BMW 840i Tune-Up

Keep your 840i running newer, longer. Schedule an engine tune-up as soon as you notice your engine running differently. Make your appointment today.

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Enhance BMW 840i Performance with a Tune-Up

Is it tune-up time? If you usually wait until your car has an issue to take it in for service, it could be time for a new way of doing things, especially if you drive a 2023 BMW 840i. Periodic tune-ups can bring more power back to your 840i’s engine. They're designed to help your engine start easier and run more efficiently, which can lead to lower emission levels and better fuel economy. When you take your car for regular engine tune-ups as recommended by BMW, you’re taking vital steps toward keeping your 840i’s engine running smoother, longer.

Routine Engine Tune-Up Service for Your BMW 840i

The Firestone Complete Auto Care location in your community offers several BMW 840i engine tune-up services. The first is the standard Firestone Tune-Up. The standard Firestone Tune-Up includes new spark plugs (and installation!), a thorough inspection of engine components, and a lifetime parts warranty*. Another service option pays special attention to the filters in your 840i. Specifically, we replace the fuel filter and air filter. The third tune-up option is a fuel system cleaning service, which is a three-step process that removes varnish, dirt, and carbon deposits on your 840i's fuel injectors, throttle body, and throttle plate. This can improve your fuel system’s performance (and therefore, your engine’s performance). Here’s something to remember when choosing services: the mileage and service history of your 840i can determine what kind of service it needs. This means that a tune-up service that’s a great fit for another car may not be optimal for yours. Talk to a technician about your driving style, mileage, and service history to learn more about your vehicle's specific needs.

Where to Get a BMW 840i Tune-Up

Schedule your next 2023 840i engine tune-up service at Firestone Complete Auto Care. Follow BMW's recommended maintenance schedule or book an appointment as soon as you notice one of the following: decreased gas mileage, "rough" idling or stalling when stopped, an illuminated check engine light on your dashboard, or a knocking sound when the engine is running.

*Ask a Firestone Complete Auto Care teammate about full terms and conditions for warranties.

Common Engine Tune-Up Q&A For 2023 BMW 840is

What happens if my BMW 840i spark plugs fail? When it’s time to replace the spark plugs, don’t delay. These small (but vital!) parts provide the electric spark that your car needs in order to start, and old spark plugs can prevent your car from starting at all. Replace spark plugs on time or about every 30,000 miles or so.
What should I do if I see leaks under my 840i? Puddles could indicate that your vehicle is leaking coolant, oil, or brake fluid. Ignoring these leaks can lead to permanent engine damage, so address these symptoms ASAP with a tune-up service.
Are hard starts and stops bad for my BMW 840i engine? Hard stops and starts can lead to premature wear on your engine’s components. Lighten up that lead foot and opt for steady, fluid starts and stops instead. Your engine (and your passengers!) will thank you.
Where can I have a BMW 840i tune-up done? At your local Firestone Complete Auto Care! Our technicians know how to service, maintain, and repair BMW 840is.
How often should I clean my BMW 840i fuel injectors? The frequency at which car fuel injectors should be cleaned can vary depending on several factors, including the type of fuel used and the driving conditions. Some manufacturers generally recommend a fuel system cleaning as part of your general car maintenance, or as needed based on symptoms of poor fuel system performance.
Who performs BMW 840i tune-ups? Visit your nearby Firestone Complete Auto Care for BMW 840i tune-ups and more. Schedule your appointment online and save big by checking out our latest offers.

Maintenance for Your 2023 BMW 840i

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.

2023 BMW 840i Repair

Your BMW 840i runs best when it’s well cared for. Make sure it’s always in tip-top shape with repairs from Firestone Complete Auto Care. Learn more about 2023 BMW 840i repairs below.