Why does the check engine light in my 635CSi turn on when I start my car?

Generally, your check engine light turning on upon ignition is not a bad thing. This is a sign that your vehicle is testing its circuits. The light should turn off in a bit, but come see us if it doesn't.

Are BMW 635CSi engine noises bad?

Strange engine sounds can be a sign something’s off in your BMW 635CSi. Tapping or knocking could mean you need an oil change. A high-pitched whistle could signal an intake leak or misaligned belt. Squealing may be caused by a loose fan belt, and grinding might be coming from the brakes, not the engine.

What could damage my BMW 635CSi engine?

Some driving habits are not so great for your engine. These include driving on a near-empty gas tank, revving the engine while still in Park, or slamming the gas pedal while the engine is still cold. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.

Can I use water in my BMW 635CSi radiator?

It’s not recommended you put water in your 635CSi radiator unless it’s an emergency. Under normal circumstances, use a 50/50 mix of water and coolant or a pre-mixed coolant. But, if you need to keep driving while out of coolant, using water is better than driving with an empty coolant reservoir.

What can cause a 635CSi engine to suddenly stop?

Reasons your 635CSi car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.

Who can repair my BMW 635CSi engine?

For BMW 635CSi engine repair, trust your local Firestone Complete Auto Care. You can make an appointment today at any of our thousands of locations across the U.S.

Engine Repairs for Your 1988 BMW 635CSi

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1988 BMW 635CSi Trim Options

Select your BMW 635CSi trim level to learn more about BMW-recommended engine repair. Even BMW 635CSi parts will get older and change.

L6/3.5L

1988 BMW 635CSi Repair

Nothing stays the same forever. Even your BMW 635CSi’s engine parts and components will change. When something breaks or fails, we’re ready to help. Select a repair or category to learn more about 1988 BMW 635CSi services.

We Care for BMW 635CSi Engines

BMW 635CSi drivers trust that their 635CSi will take them near and far. You may have even been thinking about that when you bought it. However, even your trustworthy engine is subject to wear and tear. Sometimes plans go sideways. If the unexpected strikes, you may search the internet frantically for quick and affordable 1988 BMW 635CSi engine repairs. That's when it's time to head to Firestone Complete Auto Care. We've serviced more than 500 million vehicles since 1926, and our technicians know BMW 635CSi engines. Schedule an appointment if you're experiencing problems that could require engine repair. After all, Firestone Complete Auto Care is one of the most popular picks for professional engine repairs thanks to its service and affordability.

Check Engine Light on 1988 BMW 635CSi

An illuminated check engine light on your BMW 635CSi is one of the first signs it's time to 'brake' for engine service. A check engine light that’s flashing or steadily illuminated could point to problems with your fuel injection, Possible causes can include a failing oxygen sensor, worn spark plug, a problem with your catalytic converter, or an engine vacuum leak, but that's only a few of the possible causes. Stop by your local Firestone Complete Auto Care to get your 635CSi issues diagnosed and our expert techs will get the root of the problem. engine pinging noises, oil leaks, or misfiring.

BMW 635CSi Engine Repair

If your 1988 635CSi engine needs repairs, our expert techs will let you know what needs to be done and why before they get started. We never do any work without your sign-off. If a repair can wait, we'll let you know. We'll also tell you if it's necessary for your safety. We seek to give you all the info you need to make a smart decision about our services. Turn to Firestone Complete Auto Care for your 1988 635CSi engine repairs and you can feel good knowing that we only use BMW-compliant replacement parts such as the cambelt, motor oil seal, sensors, or a different component.

1988 BMW 635CSi Engine Q&A

Why does the check engine light in my 635CSi turn on when I start my car? Generally, your check engine light turning on upon ignition is not a bad thing. This is a sign that your vehicle is testing its circuits. The light should turn off in a bit, but come see us if it doesn't.
Are BMW 635CSi engine noises bad? Strange engine sounds can be a sign something’s off in your BMW 635CSi. Tapping or knocking could mean you need an oil change. A high-pitched whistle could signal an intake leak or misaligned belt. Squealing may be caused by a loose fan belt, and grinding might be coming from the brakes, not the engine.
What could damage my BMW 635CSi engine? Some driving habits are not so great for your engine. These include driving on a near-empty gas tank, revving the engine while still in Park, or slamming the gas pedal while the engine is still cold. Help sustain your engine’s performance and efficiency by staying miles away from these bad driving practices.
Can I use water in my BMW 635CSi radiator? It’s not recommended you put water in your 635CSi radiator unless it’s an emergency. Under normal circumstances, use a 50/50 mix of water and coolant or a pre-mixed coolant. But, if you need to keep driving while out of coolant, using water is better than driving with an empty coolant reservoir.
What can cause a 635CSi engine to suddenly stop? Reasons your 635CSi car engine may suddenly stop include engine overheating, electrical troubles, mechanical issues, ignition system problems, faulty sensors, and low fuel.
Who can repair my BMW 635CSi engine? For BMW 635CSi engine repair, trust your local Firestone Complete Auto Care. You can make an appointment today at any of our thousands of locations across the U.S.