- Hood is open. The hood release on your BMW 3-Series can be found underneath the dashboard. When you hear the BMW hood pop open, pull the lever.
- The hood safety clasp at the front of the car must then be released. The hood should be raised and locked open.
- the Coolant Reservoir’s location. The BMW’s coolant reservoir (tank) can then be found. Here, you may check the coolant level and top it out if necessary. The coolant expansion tank is found on the driver’s side of the engine in a 3-Series. Slowly remove the cover. Only after the engine has cooled should you open the cap.
- Remove cap to check the coolant level in a BMW 3-Series. Observe the low and high levels in the coolant reservoir tank. You must replenish coolant if the level falls below the minimal level, or your 3-Series risked overheating. The floating gadget is used by the BMW 3-series to gauge the coolant level.
- Add antifreeze and engine coolant. Only use the BMW-recommended coolant type.
- 316i
- 318i
- 320i
- 323i
- 325i
- 325xi
- 328i
- 328xi
- 330i
- 330xi
- 335i
- 335is
- 335xi
- 320d
- 320xd
- 325d
- 330d
- 330xd
- 335d
- M3, M3 GTS
The 2004–2013 BMW 3-Series Check Level & Add Coolant instruction is intended to be helpful. For additional assistance with your BMW, consult these troubleshooting and repair instructions.
In This Article...
What occurs if the incorrect coolant is used in a BMW?
The performance of the car can be hampered if the wrong coolant is used or if several types are mixed together. Additionally, the radiator’s corrosion may worsen. It’s crucial to remember that color alone cannot accurately identify the type of coolant you should use. The radiator, water pump, radiator hoses, cylinder gasket, and other components can suffer corrosion and other issues as a result of using the incorrect coolant. Having a qualified auto mechanic handle your vehicle’s maintenance is the greatest method to guarantee that you obtain the right coolant.
What kind of coolant is used by a BMW?
No matter what type of car you drive, whether it’s a BMW, Porsche, Mercedes Benz, Audi, Mini, or Volkswagen, your car circulates a solution of water and coolant to dissipate the heat generated within the engine and prevent it from completely melting down (one notable exception are older Porsche models that are air and oil cooled and did not use water or coolant, but instead circulated a large amount of oil to dissipate the heat).
A Spectrum of Colors
Which coolant type is best for your BMW, Porsche, Mercedes Benz, Audi, or Volkswagen out of the many available options? The answer is the kind that was initially installed in your car. Your coolant may be green, pink, blue, yellow, or even clear depending on the manufacturer. All coolants are naturally transparent, and dye is used to give them color. It has no impact on the coolant’s chemical properties that each producer adds their own colour blend. Because the water in Europe is substantially harder than the water in the United States, European manufacturers prefer coolant that is phosphate-free.
Inorganic Acid Technology (IAT), Organic Acid Technology (OAT), and Hybrid Organic Acid Technology (HOAT) are the three most common coolant types available today. A HOAT coolant is used by your BMW, Porsche, Mercedes Benz, Audi, or Volkswagen.
In order to protect aluminum surfaces, silicate is added to OAT coolants to create HOAT coolants. The cylinder heads and radiators, as well as other parts of your BMW, Mercedes Benz, Porsche, Audi, and Volkswagen engine and cooling systems, are constructed of aluminum.
Silicate and phosphate corrosion inhibitors are not used in OAT coolants. These coolants are made to last for 150,000 miles and have a long service life (or 5 years). It should be mentioned, nevertheless, that German Auto Center and the majority of manufacturers advise cleansing or replacing the coolant every two years.
The metal (Iron) components of the engine and cooling system are protected by traditional coolants, which are IAT coolants and use silicate and phosphate corrosion inhibitors. IAT coolants shouldn’t be utilized because the majority of the iron components in your BMW, Mercedes Benz, Porsche, Mini, Audi, and Volkswagen have been replaced with aluminum and other lighter composites.
It’s crucial to keep in mind that modern German performance cars, whether you drive a Porsche, Mercedes Benz, Mini BMW, Volkswagen, or Audi, will last you for many miles and years if you maintain them properly. German Auto Center in Austin is the place to go for German auto repairs. We will be pleased to help you!
Does BMW require specialized coolant?
In addition to controlling engine temperatures, the quality of your BMW coolant is essential for lubricating the water pump, guarding against corrosion and buildup, providing anti-freeze during the winter, and, in some models, assisting in cooling for engine and gearbox oil coolers. Not just any antifreeze will do; BMWs have special coolant needs (nitrite and phosphate free) to prevent build-up and corrosion of metal components. Along with BMW coolant, we also sell coolant additives like Red Line Water Wetter, which lower combustion chamber temperatures and elevate boiling points in order to prevent detonation and banging.
How can I tell if the coolant in my BMW is low?
- Dashboard warning light: Your car’s dashboard may alert you when coolant or antifreeze levels are low.
- A rising temperature gauge could indicate that the temperature of your engine is rising.
Can I use water in my BMW instead of coolant?
Your radiator system becomes more contaminated when you use water. Although using water instead of low coolant is significantly better for the engine, you should switch the water out as soon as you can for the proper coolant for your car.
Any remaining coolant in the radiator is diluted when water is added to it. Preventing corrosion, raising the boiling point of water, and reducing the freezing point of water are just a few of the crucial jobs that coolant does. While using water in place of the coolant will allow you to drive the automobile for a brief period of time, your engine won’t be adequately protected.
This means that the radiator needs to be filled with a 50/50 mixture of coolant and water as soon as the issue that led to a low coolant level is resolved.
How often should a BMW have coolant added?
Typically, every 30,000 miles or every two years, you should have a BMW coolant cleanse conducted. Your car may be able to go longer between flushes in specific circumstances.
Can a BMW be driven with little coolant?
The most frequent cause of the coolant indicator on your dashboard being activated is low coolant, so it’s critical that you have your car looked at right away to prevent the engine from overheating. You run the risk of costly and harmful damage to your car if you opt to disregard the warning light.
When the low coolant indicator turns on while you’re driving, you should stop as soon as it’s safe to do so. You must wait at least 30 minutes for the engine and fluids to cool down in order to avoid getting burned.
Check the coolant reservoir once your car has cooled off by opening the hood. If the reservoir’s coolant level is low, carefully open the reservoir and add enough coolant to fill it to the level indicated on the tank.
You may want to have your car towed to a repair if there are any obvious leaks, but if there aren’t any and you feel confident behind the wheel, you can drive it yourself to a nearby mechanic. In either case, you should have your car checked out and maintained by a professional technician as soon as you can to have any potential problems rectified.
Why is the coolant in my BMW low?
You might be startled to hear that a “low coolant” sign doesn’t always indicate that the coolant level is low; there could be other problems, such as failing parts that eventually cause the coolant level to drop. The low coolant indicator is alarming because most modern cars, including most BMWs, use coolant that is designed to last for a long time.
Of course, it’s also very conceivable that your coolant level is incorrect even though the lighted indicator indicates that it is correct. Low coolant might be a problem for your car’s cooling system, especially if it’s a high-performance automobile like a BMW that needs better operating conditions.
BMWs are essentially a sophisticated communication network. A number of sensors for various components and features of your car are used by the warning system to operate it. There are sensors designed specifically to monitor the level of coolant and how well the cooling system is working. These sensors may malfunction independently and alert the driver to a problem when none exists.
The coolant is moved about by the radiator. It must contain both the coolant and the system pressure in order to accomplish this. It does this using airtight seals, which are susceptible to deterioration or corrosion. The car might interpret low coolant when the cooling system’s pressure falls. In this situation, a sensor replacement will probably be necessary.
A broken radiator seal or a damaged radiator are two causes of coolant leakage, among other things. If you don’t regularly check your coolant levels and keep an eye out for leaks underneath your car or throughout your engine, you could find yourself on the side of the road with an overheated engine.
Should water be added to BMW coolant?
Keep your cooling system operating at its peak performance by using BMW engine coolant (antifreeze). This 1-liter bottle works well for little top-offs of coolant that has been lost. For the best defense against boiling, freezing, corrosion, and lubrication, coolant is mixed with distilled water. For the optimum protection in street cars, mix distilled water with antifreeze 1:1. Reduce the amount of antifreeze in your coolant mixture if you want more cooling properties, but only in warm climates where freezing is not an issue. We advise monitoring the freezing point of the coolant mixture if you want to use antifreeze and water ratios other than 1:1.
Red Line Water Wetter can also be used with pre-ignition if high temperatures could lead to engine knocking.
- BMW # 82141467704, genuine German OEM antifreeze
- optimum cooling, freeze prevention, lubrication of the water pump, and corrosion resistance
Am I able to add coolant on my own?
Add the proper coolant to the reservoir if the coolant level is low (not the radiator itself). Either diluted coolant alone or a 50/50 blend of concentrated coolant and purified water are acceptable. Replace the cap and tighten it until you hear a click when the coolant reaches the cold fill line. Shut the hood.
Can you drive while the coolant is low?
Your engine can become too hot. Coolant aids in removing heat from the engine. Therefore, if there is not enough coolant, the engine may overheat or seize. An overheated engine’s continued use may result in lasting harm, such as the welding of the pistons to the cylinders.
Can I start my car right away after adding coolant?
You run the risk of getting splashed with hot water or steam once the hood is opened. The most crucial thing, he continues, is “your own safety.” The engine, hood, and any leaking coolant can all cool down by waiting for at least 15 minutes.
Is antifreeze the same as coolant?
Antifreeze, commonly referred to as engine coolant, is combined with water to prevent the radiator from freezing in extremely cold weather and overheating in extremely hot weather. Knowing which coolant type is best for your automobile or truck is crucial because there are numerous varieties available.
How frequently should coolant be topped off?
It may be time to have your old antifreeze drained and replaced with new fluid if you find that your car is running warmer than it usually does or if you have difficulties starting it in the winter. Most automakers advise a coolant cleanse every 30,000 miles or two years, whichever comes first, on average. To find out the precise advice for your car, it is best to consult your owner’s handbook.
Having said that, if you see the following, you may need to get your antifreeze changed before it should.
- Dark green liquid (silicate antifreeze)
- Dark fluid in the extended drain antifreeze color of gold/orange.
- antifreeze odor while driving or after
- burning odor while driving or after
All of these signs may point to antifreeze that is deteriorating, unclean, and old. You can also see non-oil leaks on your garage floor. This also suggests a problem. In addition to a radiator cleanse, you also require an examination if you frequently need to add antifreeze to your car.