What precautions should be taken when disconnecting the battery and replacing the radiator and coolant reservoir on Volkswagen Jetta?

If the battery is disconnected, several systems must be re-learned before they will work properly. For the replacement of the radiator shutter assembly (if equipped), follow the appropriate procedures. Begin by raising the front of the vehicle and securely supporting it on jackstands, then disconnect the cable from the negative terminal of the battery. Remove the under-vehicle splash shield and drain the cooling system, followed by removing the engine cover and cooling fan shroud. Disconnect the hoses from the radiator, being prepared for some coolant to spill, and then remove the front bumper cover. Next, remove the air guide fasteners and the air guides from each side of the condenser, followed by the condenser to radiator bolts. Remove the radiator mount bolts and push the radiator towards the rear until the upper mounts can be removed from the sides, then lift the radiator up and out of the lower mounts. Installation is the reverse of removal, and after refilling and bleeding the system, run the engine and check carefully for leaks. For specific engine types, remove the clips securing the hose connectors, disconnect the coolant temperature sensor electrical connector, and lift the clips securing the hose connectors to the charge air system circuit cooler. Remove the radiator mounting bolts, slide the radiator towards the engine until the upper mounts are free, and lift it out. Prior to installation, replace any damaged components. For the expansion tank, drain the cooling system until empty, detach the upper coolant hoses, disconnect the coolant level sensor connector, and remove the mounting screws to lift the expansion tank and disconnect the lower hose. Ensure the reservoir is clean before installation, which is the reverse of removal.

How to replace the coolant reservoir and radiator on Volkswagen Passat?

The steps involved in substituting the radiator include first lifting the front of the car and ensuring that it rests on jackstands and then emptying the cooling system. Place the radiator support panel in an accessible location and unscrew the upper and lower hoses of the coolant through prying the clip out of shape and removing the hoses off the radiator and the fan thermo switch electrical connector. In the cases of an automatic transaxle, un-hook transmission oil cooler lines at the lower section of the radiator. In cars that have air conditioning, remove the air conditioning line retaining clamps, loosen the condenser mounting bolts and unbreech the condenser and the radiator without breaking the lines and attach it to the body using wire so that it is not held loose. The second step is to remove the radiator mounting clips and the radiator out of the support panel. Prior to fitting the new radiator, any broken hose clips and fittings should be replaced and radiator checked and cleaned in case of leaks or other cooling problems. Installation is done in reverse sequence of removal and once we have installed, fill the system with correct antifreeze mixture and remove all the air in the cooling system. To perform the expansion tank, drain the system until it is dry, disconnect the coolant recovery hoses, disconnect the reservoir mounting bolts, lift the expansion tank off the firewall, and disconnect the coolant level sensor connector, and then leave the expansion tank out of engine compartment. The reservoir must be clean and free of debris before installation, and it is done in the same order as it is removed, too.

Genuine Volkswagen Radiator

Cooling Radiator

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89 Radiators found

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Volkswagen Radiator Part Number: 321-121-253-AL
$104.89 MSRP: $146.90
You Save: $42.01 (29%)
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Fits the following Volkswagen Models:
- Cabriolet | 1985-1993 | Base, Bestseller, Boutique, Carat, Classic, Etienne Aigner, Wolfsburg Edition | 4 Cyl 1.8 L GAS
- Golf | 1985-1992 | Base, GL, GT, GTI, GTI 8-Valve | 4 Cyl 1.8 L GAS
- Jetta | 1984-1992 | Base, Carat, GL, GLI, GLI 16-Valve, Wolfsburg Edition | 4 Cyl 1.6 L DIESEL, 4 Cyl 1.7 L GAS, 4 Cyl 1.8 L GAS
- Scirocco | 1985-1987 | Base | 4 Cyl 1.8 L GAS
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Volkswagen Radiator Part Number: 3A0-121-253-AB
$110.50 MSRP: $154.77
You Save: $44.27 (29%)
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Fits the following Volkswagen Models:
- Passat | 1995-1996 | GLS | 4 Cyl 2.0 L GAS
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Volkswagen Radiator Part Number: 1HM-121-253-C
$119.15 MSRP: $166.88
You Save: $47.73 (29%)
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Product Specifications
- Replaces: 1H0-121-253-AK
Fits the following Volkswagen Models:
- Cabrio | 1995-1998 | Base, GL, GLS, High Line | 4 Cyl 2.0 L GAS
- Golf | 1996-1998 | GTI, K2, TDI | 4 Cyl 1.9 L DIESEL, 4 Cyl 2.0 L GAS
- Jetta | 1995-1998 | Celebration Edition, City, GL, GLS, GLX, GT, Jazz, K2, TDI, Trek, Wolfsburg Edition | 4 Cyl 1.9 L DIESEL, 4 Cyl 2.0 L GAS, 6 Cyl 2.8 L GAS
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Volkswagen Radiator Part Number: 1E0-121-253
$124.95 MSRP: $175.00
You Save: $50.05 (29%)
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Product Specifications
- Replaces: 1EM-121-250-A
Fits the following Volkswagen Models:
- Cabrio | 1999-2002 | Base, GL, GLS, GLX | 4 Cyl 2.0 L GAS
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Volkswagen Radiator Part Number: 1J0-121-212-A
$143.99 MSRP: $201.67
You Save: $57.68 (29%)
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Product Specifications
- Other Name: Auxiliary Radiator
Fits the following Volkswagen Models:
- Golf | 1999-2002 | GTI, GTI GLX, GTI VR6 | 6 Cyl 2.8 L GAS
- Jetta | 1999-2004 | GLI, GLS, GLX | 6 Cyl 2.8 L GAS
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Volkswagen Radiator Part Number: 3QF-121-251-E
$162.67 MSRP: $227.84
You Save: $65.17 (29%)
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Fits the following Volkswagen Models:
- Atlas | 2024 | Peak Edition SE, Peak Edition SEL, SE, SEL, SEL Premium R-Line | 4 Cyl 2.0 L GAS
- Atlas Cross Sport | 2024 | SE, SEL, SEL Premium R-Line, SEL R-Line | 4 Cyl 2.0 L GAS
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Volkswagen Radiator Part Number: 3A0-121-253-C
$155.15 MSRP: $217.30
You Save: $62.15 (29%)
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Product Specifications
- Replaces: 3A0-121-253-T
Fits the following Volkswagen Models:
- Passat | 1995-1997 | GLS, GLX | 4 Cyl 2.0 L GAS, 6 Cyl 2.8 L GAS
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Volkswagen Radiator Part Number: 8D0-121-251-N
$155.89 MSRP: $218.33
You Save: $62.44 (29%)
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Fits the following Volkswagen Models:
- Passat | 1998-2005 | 4 Motion, GL, GLS, GLS 4 Motion, GLX, GLX 4 Motion | 6 Cyl 2.8 L GAS
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Volkswagen Radiator Part Number: 191-121-253
$156.60 MSRP: $219.33
You Save: $62.73 (29%)
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Product Specifications
- Replaces: 191-121-251-F, 191-121-253-B
Fits the following Volkswagen Models:
- Golf | 1987-1992 | Base, GL, GTI 16-Valve | 4 Cyl 1.6 L DIESEL, 4 Cyl 1.8 L GAS, 4 Cyl 2.0 L GAS
- Jetta | 1989-1992, 1985-1987 | Base, GL, GLI 16-Valve | 4 Cyl 1.6 L DIESEL, 4 Cyl 2.0 L GAS
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Volkswagen Radiator Part Number: 1K0-121-251-AN
$173.17 MSRP: $242.54
You Save: $69.37 (29%)
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Fits the following Volkswagen Models:
- Jetta | 2005-2006 | TDI | 4 Cyl 1.9 L DIESEL
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Volkswagen Radiator Part Number: 8D0-121-251-BC
$159.01 MSRP: $222.70
You Save: $63.69 (29%)
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Product Specifications
- Replaces: 8D0-121-251-M
Fits the following Volkswagen Models:
- Passat | 1998-2005 | GL, GL TDI, GLS, GLS 4 Motion, GLS TDI | 4 Cyl 1.8 L GAS, 4 Cyl 2.0 L DIESEL
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Volkswagen Radiator Part Number: 8D0-121-251-P
$160.65 MSRP: $225.00
You Save: $64.35 (29%)
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Fits the following Volkswagen Models:
- Passat | 1998-2005 | GL, GLS, GLS 4 Motion | 4 Cyl 1.8 L GAS
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Volkswagen Radiator Part Number: 191-121-251-C
$172.79 MSRP: $242.00
You Save: $69.21 (29%)
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Fits the following Volkswagen Models:
- Golf | 1985-1992 | Base, GL, GT, GTI, GTI 16-Valve, GTI 8-Valve | 4 Cyl 1.8 L GAS, 4 Cyl 2.0 L GAS
- Jetta | 1985-1992 | Base, Carat, GL, GLI, GLI 16-Valve, Wolfsburg Edition | 4 Cyl 1.8 L GAS, 4 Cyl 2.0 L GAS
- Scirocco | 1986-1988 | 16-Valve | 4 Cyl 1.8 L GAS
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Volkswagen Radiator Part Number: 8D0-121-251-BB
$197.41 MSRP: $276.49
You Save: $79.08 (29%)
Ships in 1-2 Business Days
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Product Specifications
- Replaces: 8D0-121-251-L
Fits the following Volkswagen Models:
- Passat | 1998-2005 | 4 Motion, GL, GLS, GLS 4 Motion, GLX, GLX 4 Motion | 6 Cyl 2.8 L GAS
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Volkswagen Radiator Part Number: 1K0-121-251-EB
$209.90 MSRP: $293.99
You Save: $84.09 (29%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Radiator Assembly
Fits the following Volkswagen Models:
- Jetta | 2013-2016 | Hybrid, Hybrid SE, Hybrid SEL, Hybrid SEL Premium, S, SE | 4 Cyl 1.4 L FULL HYBRID EV-GAS (FHEV), 4 Cyl 1.4 L GAS
- Passat | 2012-2014 | TDI SE, TDI SEL, TDI SEL Premium | 4 Cyl 2.0 L DIESEL
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Volkswagen Radiator Part Number: 7D0-121-253-C
$190.40 MSRP: $266.67
You Save: $76.27 (29%)
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Fits the following Volkswagen Models:
- EuroVan | 2001-2003 | GLS, MV | 6 Cyl 2.8 L GAS
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Volkswagen Radiator Part Number: 5Q0-121-253-H
$211.23 MSRP: $295.82
You Save: $84.59 (29%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Auxiliary Radiator
Fits the following Volkswagen Models:
- Beetle | 2013-2017 | GSR, R-Line, R-Line S, R-Line SE, R-Line SEL, Turbo | 4 Cyl 2.0 L GAS
- Golf R | 2015-2019 | Base | 4 Cyl 2.0 L GAS
- Jetta | 2014-2018 | GLI, GLI SE, GLI SEL | 4 Cyl 2.0 L GAS
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Volkswagen Radiator Part Number: 5Q0-121-251-HS
$215.15 MSRP: $301.34
You Save: $86.19 (29%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Auxiliary Radiator, Intercooler
- Replaces: 5Q0-121-251-GF, 5Q0-121-251-EJ, 5Q0-121-251-GB
Fits the following Volkswagen Models:
- Golf | 2019-2021, 2015 | S, SE, TDI S, TDI SE, TDI SEL, TSi | 4 Cyl 1.4 L GAS, 4 Cyl 2.0 L DIESEL
- Golf SportWagen | 2019 | S, SE | 4 Cyl 1.4 L GAS
- Jetta | 2019-2021 | R-Line, S, SE, SEL, SEL Premium | 4 Cyl 1.4 L GAS
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Volkswagen Radiator Part Number: 3B0-121-253-B
$197.24 MSRP: $276.25
You Save: $79.01 (29%)
Ships in 1-2 Business Days
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Fits the following Volkswagen Models:
- Passat | 2002-2004 | W8 | 8 Cyl 4.0 L GAS
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Volkswagen Radiator Part Number: 171-121-253-CL
Fits the following Volkswagen Models:
- Jetta | 1984 | Base, GL | 4 Cyl 1.6 L DIESEL
- Rabbit | 1984 | L | 4 Cyl 1.6 L DIESEL

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Volkswagen Radiator

The Volkswagen Radiator maintains engine temperatures by drawing heat away from the engine via a circulating coolant and venting the heat into the cool air rushing through the grille. Positioned in front of all VW vehicles, this heat exchanger features lightweight aluminum tubes and dense fins to maximize surface area and allow the coolant to give up energy quickly before being reabsorbed by the engine. An inlet tank directs hot fluid into the core while an outlet tank delivers cooled liquid back to work while making a loop of constant performance and longevity of the engine. Because the design balances its compact dimensions with strong cooling capacity, drivers benefit from dependable operation in city traffic, steep climbs, and long highway cruises, and a clean Radiator ensures peak efficiency over many miles of driving. From the original people's car dream to the current state-of-the-art lineup, the brand delivers cars that combine smart technology and practical charm. The iconic Beetle showed how unmistakable styling, together with sound engineering, could capture hearts around the globe, and the versatile Type 2 van cemented the brand's image as a provider of uses for practical everyday life. Modern models ride on the modular MQB platform that reduces weight and enhances handling, while turbocharged TSI engines combine with direct fuel injection for lively but economical power. The digital cockpits, park assist, and intuitive MIB touchscreen keep cabins connected, and the fully electric ID series demonstrates VW commitment to a cleaner future. Whether it is a compact Golf or a spacious SUV, every one of the VW cars has a simple design, reliable build quality, and a fun drive.

Buying OEM parts is a smart move to keep your long-term repair costs low. These components are built to last because VW uses such strict factory standards. At VWPartsGiant.com, it is easy to find genuine Volkswagen Radiator at prices that actually beat the competition. You get a real manufacturer's warranty with every single part, so you know your purchase is safe. Plus, forget about return headaches since our policy is easy and worry-free. We ship your order fast, too. If you have questions, our team of parts experts is ready to help. Why wait? Start shopping now!

Volkswagen Radiator Parts and Q&A

Radiator
1K0-121-251-AB
Q: What precautions should be taken when disconnecting the battery and replacing the radiator and coolant reservoir on Volkswagen Jetta?
A:
If the battery is disconnected, several systems must be re-learned before they will work properly. For the replacement of the radiator shutter assembly (if equipped), follow the appropriate procedures. Begin by raising the front of the vehicle and securely supporting it on jackstands, then disconnect the cable from the negative terminal of the battery. Remove the under-vehicle splash shield and drain the cooling system, followed by removing the engine cover and cooling fan shroud. Disconnect the hoses from the radiator, being prepared for some coolant to spill, and then remove the front bumper cover. Next, remove the air guide fasteners and the air guides from each side of the condenser, followed by the condenser to radiator bolts. Remove the radiator mount bolts and push the radiator towards the rear until the upper mounts can be removed from the sides, then lift the radiator up and out of the lower mounts. Installation is the reverse of removal, and after refilling and bleeding the system, run the engine and check carefully for leaks. For specific engine types, remove the clips securing the hose connectors, disconnect the coolant temperature sensor electrical connector, and lift the clips securing the hose connectors to the charge air system circuit cooler. Remove the radiator mounting bolts, slide the radiator towards the engine until the upper mounts are free, and lift it out. Prior to installation, replace any damaged components. For the expansion tank, drain the cooling system until empty, detach the upper coolant hoses, disconnect the coolant level sensor connector, and remove the mounting screws to lift the expansion tank and disconnect the lower hose. Ensure the reservoir is clean before installation, which is the reverse of removal.
Radiator
3B0-121-253-B
Q: How to replace the coolant reservoir and radiator on Volkswagen Passat?
A:
The steps involved in substituting the radiator include first lifting the front of the car and ensuring that it rests on jackstands and then emptying the cooling system. Place the radiator support panel in an accessible location and unscrew the upper and lower hoses of the coolant through prying the clip out of shape and removing the hoses off the radiator and the fan thermo switch electrical connector. In the cases of an automatic transaxle, un-hook transmission oil cooler lines at the lower section of the radiator. In cars that have air conditioning, remove the air conditioning line retaining clamps, loosen the condenser mounting bolts and unbreech the condenser and the radiator without breaking the lines and attach it to the body using wire so that it is not held loose. The second step is to remove the radiator mounting clips and the radiator out of the support panel. Prior to fitting the new radiator, any broken hose clips and fittings should be replaced and radiator checked and cleaned in case of leaks or other cooling problems. Installation is done in reverse sequence of removal and once we have installed, fill the system with correct antifreeze mixture and remove all the air in the cooling system. To perform the expansion tank, drain the system until it is dry, disconnect the coolant recovery hoses, disconnect the reservoir mounting bolts, lift the expansion tank off the firewall, and disconnect the coolant level sensor connector, and then leave the expansion tank out of engine compartment. The reservoir must be clean and free of debris before installation, and it is done in the same order as it is removed, too.