How to remove and install the Transmission Oil Cooler on the BMW X3?

To service the ATF cooler you will need to brave the belly of the car and here are the steps, First, take off the splash shield below the engine and then you will remove the cooling fan and the cowl. Depressurise the cooling system, when refilling make sure to shield the alternator from any detrimental impacts during the working on oil, coolant or fuel circuits. Remove the hose connection of the ATF cooler to the quick disconnect unions by turning the hose towards the oil cooler and at the same time trying to push the black ring present inside the hose at the end of the fitting until it pops out. Turn this lock counter clockwise and pull the ATF cooler away from the radiator as shown below. As for removal procedure, it is reversed in the process of installation; all sealing rings must be replaced, and only after putting on a lock and making it to click into place, the ATF cooler can be installed. Perform other services which include the checking of the automatic transmission fluid level, its refilling and bleeding of the cooling system and its examination for signs of leakage.

Genuine BMW X3 Transmission Oil Cooler

Trans Oil Cooler

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12 Transmission Oil Coolers found

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BMW X3 Transmission Oil Cooler
Part Number: 17219487254
$369.20 MSRP: $509.84
You Save: $140.64 (28%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Oil Cooler, Transmission Cooler
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2020-2024 BMW X3 | 4 Cyl 2.0 L GAS, 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV), 6 Cyl 3.0 L GAS, 6 Cyl 3.0 L MILD HYBRID EV-GAS (MHEV), M40i(G01), sDrive30i(G01), xDrive30e(G01), xDrive30i(G01)
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BMW X3 Remote Mounted Radiator
Part Number: 17118620207
$349.66 MSRP: $516.16
You Save: $166.50 (33%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: External Radiator
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2025 BMW X3 | 6 Cyl 3.0 L MILD HYBRID EV-GAS (MHEV)
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BMW X3 Transmission Oil Cooler
Part Number: 17217593856
$351.63 MSRP: $485.56
You Save: $133.93 (28%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Oil Cooler
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2011-2017 BMW X3 | sDrive28i(F25), xDrive28i(F25), xDrive35i(F25)
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BMW X3 Transmission Oil Cooler
Part Number: 17218607245
$369.20 MSRP: $509.84
You Save: $140.64 (28%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Oil Cooler, Transmission Cooler
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2018-2019 BMW X3 | M40i(G01)
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BMW X3 Transmission Oil Cooler
Part Number: 17227551636
$297.70 MSRP: $369.39
You Save: $71.69 (20%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Heat Exchanger; Oil Cooler, Transmission Cooler
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2007-2010 BMW X3 | 3.0si(E83)
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BMW X3 Transmission Oil Cooler
Part Number: 17218607237
$369.20 MSRP: $509.84
You Save: $140.64 (28%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Oil Cooler, Transmission Cooler
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2018-2019 BMW X3 | sDrive30i(G01), xDrive30i(G01)
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BMW X3 Automatic Transmission Oil Cooler
Part Number: 17227505826
$282.04 MSRP: $349.96
You Save: $67.92 (20%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Heat Exchanger; Oil Cooler, Radiator, Transmission Cooler
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2004-2006 BMW X3 | 2.5i(E83), 3.0i(E83)
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BMW X3 Transmission Oil Cooler
Part Number: 64116993715
$222.57 MSRP: $286.27
You Save: $63.70 (23%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Heat Exchanger; Heater Core
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2018-2024 BMW X3 | 4 Cyl 2.0 L GAS, 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV), 6 Cyl 3.0 L GAS, 6 Cyl 3.0 L MILD HYBRID EV-GAS (MHEV), M40i(G01), sDrive30i(G01), xDrive30e(G01), xDrive30i(G01)
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BMW X3 Transmission Oil Cooler
Part Number: 64119382865
$209.33 MSRP: $269.24
You Save: $59.91 (23%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Heat Exchanger; Heater Core
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2018-2021 BMW X3 | 4 Cyl 2.0 L GAS, 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV), 6 Cyl 3.0 L GAS, M40i(G01), sDrive30i(G01), xDrive30e(G01), xDrive30i(G01)
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BMW X3 Transmission Oil Cooler
Part Number: 17118693360
$439.54 MSRP: $606.97
You Save: $167.43 (28%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Oil Cooler, Transmission Cooler
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2021-2024 BMW X3 | 6 Cyl 3.0 L GAS
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BMW X3 Transmission Oil Cooler
Part Number: 17218849776
$549.07 MSRP: $764.76
You Save: $215.69 (29%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Transmission Cooler
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2025 BMW X3 | 6 Cyl 3.0 L MILD HYBRID EV-GAS (MHEV)
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BMW X3 Transmission Oil Cooler Line
Part Number: 17228837517
$137.88 MSRP: $188.79
You Save: $50.91 (27%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Line, Outlet Tube
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2022-2024 BMW X3 | 6 Cyl 3.0 L GAS, 6 Cyl 3.0 L MILD HYBRID EV-GAS (MHEV)

BMW X3 Transmission Oil Cooler

The Transmission Oil Cooler in the BMW X3 maintains the temperature of the vehicle's transmission lubricant within a safe temperature window so that viscosity remains stable during spirited driving or steep grade towing. The Transmission Oil Cooler utilizes an oil to water heat exchanger that is connected to the radiator system. This allows the hot fluid to circulate through engine coolant so the oil temperature warms quickly after startup and dangerous thermal spikes are prevented when the SUV is working hard. The Transmission Oil Cooler design has not changed much for the whole X3 lineup, favoring the compact sealed plate style Transmission Oil Cooler that fits neatly in the original cooling path. The BMW approach makes use of the coolant flow for faster regulation, a feature suited to a daily driver but still able to cope with the heavy loads generated when an X3 is tasked with hauling gear or climbing long grades. Weaknesses common to the automobiles of BMW can be expected from the shared coolant passages inside the BMW cooling system. If the antifreeze service is ignored, they can clog. Moreover, they can corrode and leak, which will let oil mix with the coolant. The efficiency of your car will be reduced as a result. A clean and functioning Transmission Oil Cooler enhances shifting quality, prolongs the oil life, and helps automatic transmission reach optimal operating conditions without overheating in demanding conditions.

If you are looking for OEM BMW X3 Transmission Oil Cooler, we highly recommend to shop with us. Not only do we offer budget friendly prices, but we also provide fast delivery. In addition, we have a hassle-free return policy on all genuine BMW X3 Transmission Oil Cooler that come backed by the manufacturer's warranty.

BMW X3 Transmission Oil Cooler Parts Questions & Experts Answers

Transmission Oil Cooler
17227551636
Q: How to remove and install the Transmission Oil Cooler on the BMW X3?
A:
To service the ATF cooler you will need to brave the belly of the car and here are the steps, First, take off the splash shield below the engine and then you will remove the cooling fan and the cowl. Depressurise the cooling system, when refilling make sure to shield the alternator from any detrimental impacts during the working on oil, coolant or fuel circuits. Remove the hose connection of the ATF cooler to the quick disconnect unions by turning the hose towards the oil cooler and at the same time trying to push the black ring present inside the hose at the end of the fitting until it pops out. Turn this lock counter clockwise and pull the ATF cooler away from the Radiator as shown below. As for removal procedure, it is reversed in the process of installation; all sealing rings must be replaced, and only after putting on a lock and making it to click into place, the ATF cooler can be installed. Perform other services which include the checking of the automatic transmission fluid level, its refilling and bleeding of the cooling system and its examination for signs of leakage.