What does an illuminated coolant temperature light mean for my BMW?

If the coolant light illuminates on your dashboard, your engine could be overheating. Pull over to a safe area and wait for the engine to cool down. Then, head to your nearest Firestone Complete Auto Care for a coolant system check.

Is an antifreeze leak dangerous?

Notice a leaking fluid that's green, bright orange, or pink and feels sticky? It might be antifreeze. Antifreeze is toxic but has a sweet smell and taste that's attractive to many cats and dogs. Do your pets a favor and have an antifreeze leak investigated ASAP. Then hose down the driveway or garage floor!

Can BMW 740iL radiators be cleaned?

To keep your BMW 740iL radiator running well, it’s wise to get it cleaned out a few times a year.

What is causing my 740iL to overheat?

One of the main reasons your BMW 740iL engine might overheat is because you don’t have enough coolant. Other causes include a clogged radiator, a damaged cooling fan, a malfunctioning thermostat, or a faulty water pump.

What is making my 740iL radiator sound like it’s boiling or rumbling?

There could be air pockets in your 740iL’s cooling system. You might also have a clogged radiator or faulty radiator cap (this last one is an easy fix!).

Is rust in my 740iL radiator bad?

Yes. Rust in the radiator of your BMW 740iL can impair its cooling efficiency, cause leaks, and even result in complete failure of the radiator. Over time, rust can eat away at the radiator's cooling passages, forming tiny holes or cracks that can affect its operation. To help prevent rust from causing damage, you should stay on top of radiator maintenance.

Radiator Service & Repair for 1998 BMW 740iL

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BMW 740iL Radiator Services

Are rising engine temperatures causing rising stress levels for you? Cool it! Schedule your 1998 BMW 740iL radiator service or repair today.

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Is It Time for Service on My 1998 BMW 740iL Cooling System?

If you’re not sure what the purpose of a radiator is, it’s hard to tell when to have your BMW 740iL radiator serviced. Nonetheless, it’s vital to know what to look for. As part of your car’s cooling system, your radiator helps keep engine temperature regulated. So, what happens when the radiator isn’t working quite like it should? You guessed it – your engine overheats, and it may even break down completely.

Regular, proactive service on the radiator in your 1998 BMW 740iL is a huge factor in the longevity of your engine. To keep your radiator functioning, BMW recommends replacing your antifreeze or coolant at scheduled intervals but it’s also wise to keep an eye out for signs of a failing radiator. You might be driving around (or about to be stranded) with a failing radiator if you see coolant leaks under your car, high engine temperatures, or a dashboard light that indicates low coolant. As soon as you see one of these symptoms, come to your nearest Firestone Complete Auto Care for a Courtesy Check.

BMW 740iL Coolant Fluid Exchange

What happens during a radiator repair service? If you bring your vehicle to Firestone Complete Auto Care, we start with a comprehensive inspection of your BMW 740iL’s cooling system. Then, we’ll move on to a machine-powered coolant exchange. Finally, we’ll refill the flushed sealants, lubricants and chemicals, then do a pressure check to catch any possible leaks.

If your radiator is acting up, odds are good that your water pump needs to be checked for proper function, too. The water pump is one part on your 1998 BMW 740iL engine that you'll want to have repaired or replaced as soon as you discover a problem with it. This pump ensures that coolant is always flowing through the radiator, hoses, and engine. If it’s not working well (or at all), your engine can easily overheat. Let our technicians examine your radiator pumps and hoses to help you stay ahead of any potential engine problems. From the heater core to the radiator cap, your 1998 BMW 740iL is in good hands at Firestone Complete Auto Care. We stand behind our work with our Triple Promise: Fixed Right, Priced Right, Right on Time.

BMW 740iL Radiator Q&A

Wondering how to make your 1998 BMW 740iL radiator last as long as possible? Read on for answers to common questions, and visit your local Firestone Complete Auto Care when your engine shows any signs of a faulty radiator.

What does an illuminated coolant temperature light mean for my BMW? If the coolant light illuminates on your dashboard, your engine could be overheating. Pull over to a safe area and wait for the engine to cool down. Then, head to your nearest Firestone Complete Auto Care for a coolant system check.
Is an antifreeze leak dangerous? Notice a leaking fluid that's green, bright orange, or pink and feels sticky? It might be antifreeze. Antifreeze is toxic but has a sweet smell and taste that's attractive to many cats and dogs. Do your pets a favor and have an antifreeze leak investigated ASAP. Then hose down the driveway or garage floor!
Can BMW 740iL radiators be cleaned? To keep your BMW 740iL radiator running well, it’s wise to get it cleaned out a few times a year.
What is causing my 740iL to overheat? One of the main reasons your BMW 740iL engine might overheat is because you don’t have enough coolant. Other causes include a clogged radiator, a damaged cooling fan, a malfunctioning thermostat, or a faulty water pump.
What is making my 740iL radiator sound like it’s boiling or rumbling? There could be air pockets in your 740iL’s cooling system. You might also have a clogged radiator or faulty radiator cap (this last one is an easy fix!).
Is rust in my 740iL radiator bad? Yes. Rust in the radiator of your BMW 740iL can impair its cooling efficiency, cause leaks, and even result in complete failure of the radiator. Over time, rust can eat away at the radiator's cooling passages, forming tiny holes or cracks that can affect its operation. To help prevent rust from causing damage, you should stay on top of radiator maintenance.