Will it hurt my BMW 840i to drive with old spark plugs?

Replace spark plugs on time or about every 30,000 miles or so. Spark plugs are small but mighty. The spark of electricity that the plug emits across a small gap creates the ignition for the combustion needed to start your car. Without that spark, your car won't start.

What do I do if I see a pool of liquid under my BMW 840i?

Puddles could indicate an oil leak, coolant leak, or brake fluid leak– all of which can critically hurt your engine. Have your engine inspected as soon as you spot a pool of liquid in your usual parking spot.

What do hard starts and stops do to my 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.

I need a BMW 840i tune-up. Where can I get on?

At your nearby Firestone Complete Auto Care! Whether you need BMW 840i service, maintenance, or repairs, our technicians can get the job done.

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

The cleaning schedule for vehicle fuel injectors varies depending on your driving conditions and the type of fuel you use. Some manufacturers suggest cleaning your fuel system as part of routine maintenance, while others will recommend it on an as-needed basis if you’re experiencing poor performance. Reference your BMW owner’s manual for exact guidelines.

Who performs BMW 840i tune-ups?

Visit your local Firestone Complete Auto Care for your BMW 840i tune-up. Make an appointment online and view our latest offers to save big.

2021 BMW 840i Tune-Up & Engine Service

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Schedule BMW 840i Tune-Up

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.

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Enhance BMW 840i Performance with a Tune-Up

Is your engine overdue for a tune-up? If you usually wait until your car has an issue to take it in for service, it might be time to change your ways, especially if you drive a 2021 BMW 840i. Routine engine tune-ups can bring power back to your 840i. Tune-ups give your engine a boost in efficiency, so you can enjoy improved fuel economy and lower emissions. When you get routine engine tune-ups based on BMW's recommendations, you invest in your 840i's long-term health and engine performance.

BMW 840i Engine Tune-Up Services

Your nearest Firestone Complete Auto Care location has several options to choose from when it comes to BMW 840i engine tune-up services. The standard Firestone Tune-Up is one service option. The standard Firestone Tune-Up includes new spark plugs (and installation!), a thorough inspection of engine components, and a lifetime parts warranty*. 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. This can improve your fuel system’s performance (and therefore, your engine’s performance). Consider this when choosing a tune-up service for your 840i: your vehicle’s maintenance record and mileage can determine which service is best. 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.

Where to Get a Tune-Up for Your BMW 840i

Schedule your next 2021 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: shaking while the engine is idling, poor fuel economy, knocking noises in the engine, or a lit up check engine light on your dashboard.

*Talk to a Firestone Complete Auto Care teammate for full terms and conditions on warranties.

2021 BMW 840i Engine Tune-Up Q&A

Will it hurt my BMW 840i to drive with old spark plugs? Replace spark plugs on time or about every 30,000 miles or so. Spark plugs are small but mighty. The spark of electricity that the plug emits across a small gap creates the ignition for the combustion needed to start your car. Without that spark, your car won't start.
What do I do if I see a pool of liquid under my BMW 840i? Puddles could indicate an oil leak, coolant leak, or brake fluid leak– all of which can critically hurt your engine. Have your engine inspected as soon as you spot a pool of liquid in your usual parking spot.
What do hard starts and stops do to my 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.
I need a BMW 840i tune-up. Where can I get on? At your nearby Firestone Complete Auto Care! Whether you need BMW 840i service, maintenance, or repairs, our technicians can get the job done.
How often should I clean my BMW 840i fuel injectors? The cleaning schedule for vehicle fuel injectors varies depending on your driving conditions and the type of fuel you use. Some manufacturers suggest cleaning your fuel system as part of routine maintenance, while others will recommend it on an as-needed basis if you’re experiencing poor performance. Reference your BMW owner’s manual for exact guidelines.
Who performs BMW 840i tune-ups? Visit your local Firestone Complete Auto Care for your BMW 840i tune-up. Make an appointment online and view our latest offers to save big.

2021 BMW 840i Maintenance

Take care of your vehicle and it'll take care of you. Click on a service below to learn more about properly maintaining your BMW 840i.

Repairs on Your 2021 BMW 840i

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 2021 BMW 840i repairs below.