BMW 3-Series Coolant Overflow Tanks
- URO Parts®Engine Coolant Reservoir O-RingEngine Coolant Reservoir O-Ring by URO Parts®. This superior part by URO is a great alternative solution to the costly factory equipment that will help you restore smooth and efficient operation of your vehicle. Thoroughly designed and...Designed to replace your worn out factory cooling partOptimizes engine cooling performance$2.83
- Vaico®Coolant Expansion Tank MountingCoolant Expansion Tank Mounting by Vaico®. Keep your vehicle’s heart under the hood running in tip-top condition with this premium Vaico engine cooling product. It’s designed to help your engine work in a reliable and...Sensible alternative to your OEM engine cooling partDesigned to keep your engine operating at proper temperatures$86.81 - $166.80
- Vaico®Engine Coolant Reservoir Mounting PlateEngine Coolant Reservoir Mounting Plate by Vaico®. Keep your vehicle’s heart under the hood running in tip-top condition with this premium Vaico engine cooling product. It’s designed to help your engine work in a reliable...Sensible alternative to your OEM engine cooling partDesigned to keep your engine operating at proper temperatures$125.30 - $199.37
- Elring®Engine Coolant Reservoir SealEngine Coolant Reservoir Seal by Elring®. Increase the life of your vehicle's engine by keeping your cooling system in top condition. Replace your faulty engine cooling component with this highly efficient replacement product and be...Expertly Crafted from the highest grade materialsMade to provide maximum accuracy and dependability$1.04 - $8.57
- MTC®Engine Coolant Reservoir ClipEngine Coolant Reservoir Clip by MTC®. If you’re looking for replacement parts at reasonable prices, then MTC parts are the way to go. Manufactured by highly qualified experts who follow stringent quality standards, these parts...Ideal solution to restore the performance of your vehicleManufactured using high-strength materials for maximum reliability$5.71
- Febi®Febi Engine Coolant Reservoir BracketFebi Engine Coolant Reservoir Bracket by Febi®. This Febi product is designed to help you restore your engine cooling system to its mint condition, so your motor can run within the proper temperature window required for its safe and...Designed to replace your factory productMade from the same grade material as your OE part$54.48 - $58.59
- BMW OEEngine Coolant Reservoir Grommet (64126910076)Engine Coolant Reservoir Grommet (64126910076) by BMW OE. Choose genuine OE parts to restore the distinctive appearance and performance of your BMW. Meticulously crafted with German ingenuity, innovation, and attention to detail, each...OE part manufactured to provide authentic quality, look, and functionDesigned to easily restore your BMW’s original condition$7.28
- BMW OEEngine Coolant Overflow Hose (17122284686)Engine Coolant Overflow Hose (17122284686) by BMW OE. Choose genuine OE parts to restore the distinctive appearance and performance of your BMW. Meticulously crafted with German ingenuity, innovation, and attention to detail, each part...OE part manufactured to provide authentic quality, look, and functionDesigned to easily restore your BMW’s original condition$58.61
- BMW OEEngine Coolant Overflow Hose (17128570061)Engine Coolant Overflow Hose (17128570061) by BMW OE. Choose genuine OE parts to restore the distinctive appearance and performance of your BMW. Meticulously crafted with German ingenuity, innovation, and attention to detail, each part...OE part manufactured to provide authentic quality, look, and functionDesigned to easily restore your BMW’s original condition$54.90
- BMW OEEngine Coolant Overflow Hose (17128633484)Engine Coolant Overflow Hose (17128633484) by BMW OE. Choose genuine OE parts to restore the distinctive appearance and performance of your BMW. Meticulously crafted with German ingenuity, innovation, and attention to detail, each part...OE part manufactured to provide authentic quality, look, and functionDesigned to easily restore your BMW’s original condition$191.11
- BMW OEEngine Coolant Overflow Hose (17128620944)Engine Coolant Overflow Hose (17128620944) by BMW OE. Choose genuine OE parts to restore the distinctive appearance and performance of your BMW. Meticulously crafted with German ingenuity, innovation, and attention to detail, each part...OE part manufactured to provide authentic quality, look, and functionDesigned to easily restore your BMW’s original condition$66.14
- BMW OEEngine Coolant Reservoir (17137642158)Engine Coolant Reservoir (17137642158) by BMW OE. Choose genuine OE parts to restore the distinctive appearance and performance of your BMW. Meticulously crafted with German ingenuity, innovation, and attention to detail, each part...OE part manufactured to provide authentic quality, look, and functionDesigned to easily restore your BMW’s original condition$184.09
- BMW OEEngine Coolant Reservoir (17132284600)Engine Coolant Reservoir (17132284600) by BMW OE. Choose genuine OE parts to restore the distinctive appearance and performance of your BMW. Meticulously crafted with German ingenuity, innovation, and attention to detail, each part...OE part manufactured to provide authentic quality, look, and functionDesigned to easily restore your BMW’s original condition$214.76
- BMW OEEngine Coolant Reservoir (17137642160)Engine Coolant Reservoir (17137642160) by BMW OE. Choose genuine OE parts to restore the distinctive appearance and performance of your BMW. Meticulously crafted with German ingenuity, innovation, and attention to detail, each part...OE part manufactured to provide authentic quality, look, and functionDesigned to easily restore your BMW’s original condition$184.09
- BMW OEEngine Coolant Reservoir Hose Clamp (32411712735)Engine Coolant Reservoir Hose Clamp (32411712735) by BMW OE. Choose genuine OE parts to restore the distinctive appearance and performance of your BMW. Meticulously crafted with German ingenuity, innovation, and attention to detail, each...OE part manufactured to provide authentic quality, look, and functionDesigned to easily restore your BMW’s original condition$2.75
- BMW OEEngine Coolant Reservoir Screw (11537793373)Engine Coolant Reservoir Screw (11537793373) by BMW OE. Choose genuine OE parts to restore the distinctive appearance and performance of your BMW. Meticulously crafted with German ingenuity, innovation, and attention to detail, each part...OE part manufactured to provide authentic quality, look, and functionDesigned to easily restore your BMW’s original condition$16.74
- BMW OEFront Engine Coolant Overflow Hose (17128662837)Front Engine Coolant Overflow Hose (17128662837) by BMW OE. Choose genuine OE parts to restore the distinctive appearance and performance of your BMW. Meticulously crafted with German ingenuity, innovation, and attention to detail, each...OE part manufactured to provide authentic quality, look, and functionDesigned to easily restore your BMW’s original condition$122.21
- BMW OELower Radiator Coolant Hose (17127600551)Lower Radiator Coolant Hose (17127600551) by BMW OE. Choose genuine OE parts to restore the distinctive appearance and performance of your BMW. Meticulously crafted with German ingenuity, innovation, and attention to detail, each part...OE part manufactured to provide authentic quality, look, and functionDesigned to easily restore your BMW’s original condition$74.65
- BMW OERear Engine Coolant Overflow Hose (17128673993)Rear Engine Coolant Overflow Hose (17128673993) by BMW OE. Choose genuine OE parts to restore the distinctive appearance and performance of your BMW. Meticulously crafted with German ingenuity, innovation, and attention to detail, each...OE part manufactured to provide authentic quality, look, and functionDesigned to easily restore your BMW’s original condition$94.65
- TRQ®Engine Coolant Reservoir (ECA81886)Engine Coolant Reservoir (ECA81886) by TRQ®. If your engine coolant reservoir has failed, replace it with this high-quality one from TRQ. Developed to fit and function exactly as the OEM component, it provides reliable performance mile...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$80.95Save: $4.05 (5%)$76.90
- TRQ®Engine Coolant Reservoir (ECA63294)Engine Coolant Reservoir (ECA63294) by TRQ®. If your engine coolant reservoir has failed, replace it with this high-quality one from TRQ. Developed to fit and function exactly as the OEM component, it provides reliable performance mile...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$46.95Save: $1.88 (4%)$45.07
- TRQ®Engine Coolant Reservoir (ECA63212)Engine Coolant Reservoir (ECA63212) by TRQ®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...Developed to comply with rigorous quality standardsExceptional quality at a budget-friendly price$56.95Save: $1.71 (3%)$55.24
- TRQ®Engine Coolant Reservoir (ECA92811)Engine Coolant Reservoir (ECA92811) by TRQ®. If your engine coolant reservoir has failed, replace it with this high-quality one from TRQ. Developed to fit and function exactly as the OEM component, it provides reliable performance mile...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$66.95Save: $3.35 (5%)$63.60
- TRQ®Engine Coolant Reservoir (ECA92812)Engine Coolant Reservoir (ECA92812) by TRQ®. If your engine coolant reservoir has failed, replace it with this high-quality one from TRQ. Developed to fit and function exactly as the OEM component, it provides reliable performance mile...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$71.95Save: $3.60 (5%)$68.35
- TRQ®Engine Coolant Reservoir (ECA92810)Engine Coolant Reservoir (ECA92810) by TRQ®. With Cap. If your engine coolant reservoir has failed, replace it with this high-quality one from TRQ. Developed to fit and function exactly as the OEM component, it provides reliable...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$56.95Save: $1.71 (3%)$55.24
- TRQ®Engine Coolant Reservoir (ECA92098)Engine Coolant Reservoir (ECA92098) by TRQ®. If your engine coolant reservoir has failed, replace it with this high-quality one from TRQ. Developed to fit and function exactly as the OEM component, it provides reliable performance mile...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$46.95Save: $1.88 (4%)$45.07
- TRQ®Engine Coolant Reservoir (ECA92000)Engine Coolant Reservoir (ECA92000) by TRQ®. If your engine coolant reservoir has failed, replace it with this high-quality one from TRQ. Developed to fit and function exactly as the OEM component, it provides reliable performance mile...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$51.95Save: $2.08 (4%)$49.87
- TRQ®Engine Coolant Reservoir (ECA92008)Engine Coolant Reservoir (ECA92008) by TRQ®. If your engine coolant reservoir has failed, replace it with this high-quality one from TRQ. Developed to fit and function exactly as the OEM component, it provides reliable performance mile...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$51.95Save: $2.08 (4%)$49.87
- CRP®Engine Coolant Reservoir Kit (EPK0018)Engine Coolant Reservoir Kit (EPK0018) by CRP®. Engineered to meet the demanding OE standards set by many of the world's leading automobile manufacturers. That's why you'll find them on some of the world's finest automobiles.Made to keep your vehicle's engine running coolDesigned to maintain proper cooling level and prevent overheating$57.30
- CRP®Engine Coolant Reservoir Kit (EPK0131)Engine Coolant Reservoir Kit (EPK0131) by CRP®. Engineered to meet the demanding OE standards set by many of the world's leading automobile manufacturers. That's why you'll find them on some of the world's finest automobiles.Made to keep your vehicle's engine running coolDesigned to maintain proper cooling level and prevent overheating$90.02
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While operating, the engine produces a lot of heat that, if not dissipated, can cause overheating and failure of the engine itself and other underhood components. Therefore, there is a cooling system that decreases the temperature in the engine compartment. Inside the system, there is coolant, a mixture of antifreeze and water. This mixture also contains ethylene glycol, an organic compound which is harmful to the environment, so it is extremely important to prevent coolant from getting out of the cooling system. For this purpose, there is an expansion tank that keeps coolant from spilling onto the ground.
Typically, overflow or expansion tanks, exposed to heat and harmful chemicals, are one of the weakest points of the cooling system. BMW 3-Series expansion tanks are generally known to be made of plastic that is not so durable, so they fail rather often, putting other parts of the car at risk. If you have noticed coolant leaks, one of the first things to be inspected is the expansion tank. If it has cracks, replacement is necessary. Our BMW 3-Series coolant overflow tanks and components are made of high-quality plastic so they are more resistant to heat and chemicals than factory ones.