Will it hurt my BMW 850i to drive with old spark plugs?

Replace spark plugs on time or about every 30,000 miles or so. Without the spark of electricity created by spark plugs, your engine doesn’t have the combustion it needs to start — which could leave you stranded on the road. Always replace your spark plugs on time based on BMW’s recommendations.

What do I do if I see a pool of liquid under my BMW 850i?

Don't ignore puddles of fluid under your BMW 850i. It could signal a coolant leak, brake fluid leak, or an oil leak. Let any one of these leaks linger and it could cause engine damage.

Are hard starts and stops bad for my BMW 850i engine?

You can make your driving habits more engine-friendly. Hard starts and stops can increase the stress on engine parts, especially over many years. Boost your fuel economy and care for your engine by using gradual, smooth starts and stops instead.

I need a BMW 850i tune-up. Where can I get on?

At the nearest Firestone Complete Auto Care! We’re ready to help service, maintain, and repair your BMW 850i.

How often do BMW 850i fuel injectors need to be cleaned?

There is no hard and fast rule on how often fuel injectors should be cleaned, and it can vary based on driving habits and fuel type. Some manufacturers may suggest including a fuel system cleaning in your regular maintenance schedule. Or you may need to clean your fuel injectors as needed if you notice signs of a fuel system problem.

Who can I go to for BMW 850i tune-ups?

When your 850i needs a tune-up, head to your local Firestone Complete Auto Care. Check out our latest offers to save on your service and schedule an appointment online.

1991 BMW 850i Engine Tune-Ups & Maintenance

Get a Tune-Up

Schedule an Appointment for Your BMW 850i Tune-Up

Tune in to tune up. Listen to your 850i and schedule an engine tune-up at the first strange squeak, clunk, or click. Make an appointment today.

Schedule an Appointment

Enhance BMW 850i 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, particularly if you want to keep your 1991 BMW 850i in tip-top shape. Regular engine tune-ups can optimize your 850i’s power on the road. Tune-ups give your engine a boost in efficiency, so you can enjoy improved fuel economy and lower emissions. When you follow the guidelines specified by BMW for your vehicle’s tune-up schedule, you’re taking vital steps toward keeping your 850i’s engine running smoother, longer.

Engine Tune-Up for BMW 850i

The Firestone Complete Auto Care location in your community offers several BMW 850i engine tune-up services. One option 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 850i. Specifically, we replace the fuel filter and air filter. Yet another service is a fuel system cleaning process, which involves removing varnish, dirt, and carbon deposits that have built up inside the fuel injectors, throttle body, and throttle plate in your 850i. This can improve your fuel system’s performance (and therefore, your engine’s performance). Consider this when choosing a tune-up service for your 850i: your vehicle’s maintenance record and mileage can determine which service is best. This means that a tune-up service that’s a great fit for another car may not be optimal for yours. Chat with a Firestone technician before you jump into a specific service to ensure your engine tune-up money is well-spent.

Where Should I Go for My BMW 850i Tune-Up?

Schedule your next 1991 850i engine tune-up service at Firestone Complete Auto Care. Consult your vehicle’s recommended service schedule from BMW, or make a service appointment if you notice any of these symptoms from your engine: decreased gas mileage, "rough" idling or stalling when stopped, engine knocking, or an illuminated check engine light.

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

Questions About 1991 BMW 850i Engine Tune-Ups

Will it hurt my BMW 850i to drive with old spark plugs? Replace spark plugs on time or about every 30,000 miles or so. Without the spark of electricity created by spark plugs, your engine doesn’t have the combustion it needs to start — which could leave you stranded on the road. Always replace your spark plugs on time based on BMW’s recommendations.
What do I do if I see a pool of liquid under my BMW 850i? Don't ignore puddles of fluid under your BMW 850i. It could signal a coolant leak, brake fluid leak, or an oil leak. Let any one of these leaks linger and it could cause engine damage.
Are hard starts and stops bad for my BMW 850i engine? You can make your driving habits more engine-friendly. Hard starts and stops can increase the stress on engine parts, especially over many years. Boost your fuel economy and care for your engine by using gradual, smooth starts and stops instead.
I need a BMW 850i tune-up. Where can I get on? At the nearest Firestone Complete Auto Care! We’re ready to help service, maintain, and repair your BMW 850i.
How often do BMW 850i fuel injectors need to be cleaned? There is no hard and fast rule on how often fuel injectors should be cleaned, and it can vary based on driving habits and fuel type. Some manufacturers may suggest including a fuel system cleaning in your regular maintenance schedule. Or you may need to clean your fuel injectors as needed if you notice signs of a fuel system problem.
Who can I go to for BMW 850i tune-ups? When your 850i needs a tune-up, head to your local Firestone Complete Auto Care. Check out our latest offers to save on your service and schedule an appointment online.

Maintenance for Your 1991 BMW 850i

We know it’s not just a car, it’s your car. We’ll help you properly maintain your BMW 850i to keep it on the road and running smoothly. Learn more about maintenance below.

Repair Service for Your 1991 BMW 850i

Your BMW 850i 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 1991 BMW 850i repairs below.