Why does my 635CSi’s check engine light come on when I start it?

It's okay if your check engine light comes on when you first start your vehicle. This is just your 635CSi testing its circuits. The light should turn off in a bit, but come see us if it doesn't.

Why does my BMW engine sound different?

Unusual noises can signal a problem with your BMW 635CSi engine. Tapping or knocking could mean you need an oil change. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing can indicate a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.

What could damage a BMW engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your BMW 635CSi engine?

Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' revving the engine while still in Park, or pushing 'the pedal to the metal' before the engine has warmed up. Protect your engine’s performance and efficiency by distancing yourself from these habits.

Can I put water in my BMW 635CSi radiator?

An emergency is the only time you should consider putting water in your radiator. Outside of that, it’s recommended you use a pre-mixed coolant or a 50/50 blend of water and coolant. However, if you need to continue driving your 635CSi when you’re out of coolant, having water in the coolant reservoir is better than nothing.

What could cause my 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 fixes BMW 635CSi engines?

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 1985 BMW 635CSi

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1985 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

1985 BMW 635CSi Repair

Stuff wears out. Even your BMW 635CSi's many parts and pieces. When something breaks, we're ready. Select a service or repair below to learn more about what we can do for your 1985 BMW 635CSi.

We Know BMW 635CSi Engines

The BMW 635CSi is respected for its reliability. You may have even been thinking about that when you bought it. However, the wear-proof engine has yet to be invented! Things can go wrong on the road. When they do, you might find yourself searching for 1985 BMW 635CSi engine repair or replacement parts. That’s where Firestone Complete Auto Care comes in. We've serviced millions of vehicles since 1926, and our professional technicians are trained to service BMW 635CSi engines. If you think something’s wrong with your engine, schedule an appointment at your convenience. Firestone Complete Auto Care is a top choice for professional engine diagnosis, service, and repair at an affordable price.

My 1985 BMW 635CSi Check Engine Light Is On

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, Potential causes may include a faulty oxygen sensor, bad spark plug, a problem with your catalytic converter, or a leaking engine vacuum, to name a few potential sources. Bring your 635CSi to Firestone Complete Auto Care to get computerized diagnostics and our expert techs will get the root of the problem. engine rattling, burning smells, or engine misfiring.

1985 635CSi Engine Services

If your 1985 BMW 635CSi needs engine repair, our technicians will make sure you understand what’s going on before they start working on your engine. We make recommendations, but you make the final decision. If a repair can wait, we'll let you know. But if immediate repairs are necessary for your safety, we’ll make sure that's clear, too. We want to provide you with the information you need to make an informed engine repair decision. Turn to Firestone Complete Auto Care for your 1985 635CSi engine repairs and you can feel good knowing that we only use BMW-compliant replacement parts such as the cambelt, oil gasket, sensors, or another part.

1985 BMW 635CSi Engine Q&A

Why does my 635CSi’s check engine light come on when I start it? It's okay if your check engine light comes on when you first start your vehicle. This is just your 635CSi testing its circuits. The light should turn off in a bit, but come see us if it doesn't.
Why does my BMW engine sound different? Unusual noises can signal a problem with your BMW 635CSi engine. Tapping or knocking could mean you need an oil change. Whistling sounds could mean you have an intake leak or misaligned belt. Squealing can indicate a loose fan belt, and grinding could be a sign that something is wrong with your brakes — not the engine.
What could damage a BMW engine? [ordered-list-1-item-3-1]Are you unknowingly damaging your BMW 635CSi engine? Certain driving habits can damage your engine and should be avoided. These habits include 'running on fumes,' revving the engine while still in Park, or pushing 'the pedal to the metal' before the engine has warmed up. Protect your engine’s performance and efficiency by distancing yourself from these habits.
Can I put water in my BMW 635CSi radiator? An emergency is the only time you should consider putting water in your radiator. Outside of that, it’s recommended you use a pre-mixed coolant or a 50/50 blend of water and coolant. However, if you need to continue driving your 635CSi when you’re out of coolant, having water in the coolant reservoir is better than nothing.
What could cause my 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 fixes BMW 635CSi engines? 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.