What are the key steps and considerations for inspecting, diagnosing, and replacing the Exhaust Manifold, Intercooler and Turbocharger on Volkswagen Jetta?

The turbocharger is a delicate section prone to severe damages with poor lubrication or foreign material getting into the air intake duct and failure is shown by low engine performance, blue or gray exhaust smoke or peculiar noises. Checks To ensure that there are no problems, examine the intake air duct of the engine to identify looseness or damage, verify that the air intake system is not obstructed by anything, and verify that the air filter is not dirty or that the intercooler is not damaged. Also check system vacuum hoses, wiring, and electrical connectors to be loose or corroded. See that the wastegate actuator connection is not binding, and inspect the exhaust system, lubricating oil supply and drainback lines, and coolant supply and return lines, as well as the damage or restriction. In case a replacement is required, replace the engine oil and filter. Full diagnosis involves special equipment and methods and thus in case of the initial checks failing to detect the issue, visit a dealer service department or a repair facility equipped with the necessary equipment. Removal should be done by warming up the engine and emptying the oil then letting it cool and emptying the cooling system. Unscrew the negative battery cable, loosen the right-front wheel bolts, hoist up the vehicle, and take off the right-front wheel. Take off the splash shield and engine cover undervehicle, and then take care of certain steps according to the types of engines such as removing the heat shields, coolant hose and electrical contacts and finally removing the turbocharger out of the car. The process of installation includes following all fasteners with anti-seize compound, changing seals and gaskets, fasteners, adding oil to the turbocharger, and proper alignment of the exhaust system followed by refilling engine oil and coolant. To replace charge air cooler, it should be raised and then the required parts removed and several steps followed depending on the engine type and bolts must be installed and tightened in a diagonal shape.

Genuine Volkswagen Jetta Intercooler

Front Intercooler

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13 Intercoolers found

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Volkswagen Jetta Intercooler Part Number: 04E-145-785-D
$335.49 MSRP: $458.32
You Save: $122.83 (27%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Cooler
- Replaced by: 04E-145-785-L
- Warranty: This genuine part is guaranteed by Volkswagen's factory warranty.
Fits the following Vehicles:
- 2022 Volkswagen Jetta | S, SE, SEL, Sport | 4 Cyl 1.5 L GAS
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Volkswagen Jetta Intercooler Part Number: 1J0-145-805-H
$196.80 MSRP: $275.63
You Save: $78.83 (29%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Cooler
- Warranty: This genuine part is guaranteed by Volkswagen's factory warranty.
Fits the following Vehicles:
- 1999 Volkswagen Jetta | TDI | 4 Cyl 1.9 L DIESEL
View related parts
Volkswagen Jetta Intercooler Part Number: 04E-145-785-L
$335.49 MSRP: $458.32
You Save: $122.83 (27%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Cooler
- Warranty: This genuine part is guaranteed by Volkswagen's factory warranty.
Fits the following Vehicles:
- 2022-2024 Volkswagen Jetta | S, SE, SEL, Sport | 4 Cyl 1.5 L GAS
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Volkswagen Jetta Intercooler Part Number: 1J0-145-803-T
$347.70 MSRP: $475.00
You Save: $127.30 (27%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Cooler
- Warranty: This genuine part is guaranteed by Volkswagen's factory warranty.
Fits the following Vehicles:
- 2003-2005 Volkswagen Jetta | GL, GLI, GLS, TDI, Wolfsburg Edition | 4 Cyl 1.8 L GAS, 4 Cyl 1.9 L DIESEL
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Volkswagen Jetta Intercooler Part Number: 5C0-145-803-F
$451.39 MSRP: $616.65
You Save: $165.26 (27%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Cooler; Intercooler
- Warranty: This genuine part is guaranteed by Volkswagen's factory warranty.
Fits the following Vehicles:
- 2017-2018 Volkswagen Jetta | GLI, SE Sport, SEL, Sport | 4 Cyl 1.8 L GAS, 4 Cyl 2.0 L GAS
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Volkswagen Jetta Intercooler Part Number: 1K0-145-803-CD
$460.54 MSRP: $629.15
You Save: $168.61 (27%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Cooler; Intercooler
- Replaces: 1K0-145-803-A, 1K0-145-803-L, 1K0-145-803-S, 1K0-145-803-M, 1K0-145-803-T, 3C0-145-805-AF, 3C0-145-805-AG
- Warranty: This genuine part is guaranteed by Volkswagen's factory warranty.
Fits the following Vehicles:
- 2006-2010 Volkswagen Jetta | 2.0T, GLI, SEL, TDI, TDI Cup Edition, Wolfsburg Edition | 4 Cyl 2.0 L DIESEL, 4 Cyl 2.0 L GAS
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Volkswagen Jetta Intercooler Part Number: 1K0-145-803-Q
$484.94 MSRP: $662.49
You Save: $177.55 (27%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Cooler
- Replaces: 1K0-145-803-F
- Warranty: This genuine part is guaranteed by Volkswagen's factory warranty.
Fits the following Vehicles:
- 2005-2006 Volkswagen Jetta | GL TDI, GLS TDI, TDI | 4 Cyl 1.9 L DIESEL
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Volkswagen Jetta Intercooler Part Number: 1K0-145-803-CG
$497.14 MSRP: $679.15
You Save: $182.01 (27%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Cooler; Intercooler
- Replaces: 1K0-145-803-BM, 1K0-145-803-CA, 1K0-145-803-CC
- Warranty: This genuine part is guaranteed by Volkswagen's factory warranty.
Fits the following Vehicles:
- 2012-2016 Volkswagen Jetta | GLI, GLI SE, GLI SEL, SE, SEL, SEL Premium, Sport, TDI, TDI Premium | 4 Cyl 1.8 L GAS, 4 Cyl 2.0 L DIESEL, 4 Cyl 2.0 L GAS
View related parts
Volkswagen Jetta Intercooler Part Number: 1J0-145-803-G
$477.81 MSRP: $652.75
You Save: $174.94 (27%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Cooler
- Replaces: 1J0-145-803-A, 1J0-145-803-F
- Warranty: This genuine part is guaranteed by Volkswagen's factory warranty.
Fits the following Vehicles:
- 1999-2003 Volkswagen Jetta | GL, GLS, TDI, Wolfsburg Edition | 4 Cyl 1.8 L GAS, 4 Cyl 1.9 L DIESEL
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Volkswagen Jetta Intercooler Part Number: 1J0-145-803-N
$513.35 MSRP: $701.30
You Save: $187.95 (27%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Cooler
- Warranty: This genuine part is guaranteed by Volkswagen's factory warranty.
Fits the following Vehicles:
- 2004-2005 Volkswagen Jetta | GL TDI, GLS TDI, TDI | 4 Cyl 1.9 L DIESEL
View related parts
Volkswagen Jetta Intercooler Part Number: 1K0-145-803-AE
$600.84 MSRP: $820.82
You Save: $219.98 (27%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Cooler
- Warranty: This genuine part is guaranteed by Volkswagen's factory warranty.
Fits the following Vehicles:
- 2009-2015 Volkswagen Jetta | S, TDI, TDI Cup Edition, TDI Premium, Wolfsburg Edition | 4 Cyl 2.0 L DIESEL, 4 Cyl 2.0 L GAS
View related parts
Volkswagen Jetta Intercooler Part Number: 5QM-145-803-E
$667.94 MSRP: $912.49
You Save: $244.55 (27%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Cooler
- Warranty: This genuine part is guaranteed by Volkswagen's factory warranty.
Fits the following Vehicles:
- 2019-2024 Volkswagen Jetta | GLI 35th Anniversary Edition, GLI Autobahn, GLI S | 4 Cyl 2.0 L GAS
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Volkswagen Jetta Intercooler Part Number: 1H0-145-805-B
$195.16 MSRP: $273.33
You Save: $78.17 (29%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Cooler
- Replaces: 1H0-145-805-A
- Warranty: This genuine part is guaranteed by Volkswagen's factory warranty.
Fits the following Vehicles:
- 1997-1999 Volkswagen Jetta | TDI | 4 Cyl 1.9 L DIESEL

Volkswagen Jetta Intercooler

The Intercooler applied by the Volkswagen Jetta is specially made to cool the pressurized air that is pushed into the cylinders by a turbocharger and provides the engine with more dense oxygen, thus creating more power without the chance of knock or heat damage. The Intercooler unit removes the heat formed in compression, permitting the fuel mixture to combust more violently and cleanly, and this results in faster acceleration and better fuel economy than merely increasing the displacement. The majority of the turbo-powered Volkswagen models pass the charge onto an aluminum core that is installed in the nose of the car, where outside air blows over the fins and removes the heat before it reaches the intake manifold. The two fundamental layouts prevail in the lineup, an air-to-air type which vents heat directly into the atmosphere, and an air-to-liquid type which forces coolant through a network of additional plumbing and a small radiator, which is heavy but performs effectively in cases where grille airflow is limited. Older and low-cost Volkswagen vehicles usually make use of the lighter air-to-air design, with performance-based or compact-based versions possibly exploiting the constant temperatures of liquid cooling. In several generations of the Jetta, forced induction may hike horsepower by nearly forty percent, but the cooling effect that the Intercooler provides is what makes said increase reliable. The way Volkswagen keeps enhancing the forced induction hardware means that drivers are able to get the V6-level output of small four-cylinder engines with no mileage loss.

Choose OEM Intercooler for superior quality and long-lasting durability. They match the Volkswagen's factory specifications exactly and pass strict quality control. If you plan to replace Intercooler on your Jetta, put OEM at the top of your list. You'll get the right fit, reliable performance, and peace of mind. We stock an extensive inventory of genuine Volkswagen Jetta parts. It is easy to find what you need. You will love our competitive prices that help you save. No more hassle with returns or guesswork. Every part includes a warranty straight from the manufacturer. Get trusted quality, strong durability, and real value today.

Volkswagen Jetta Intercooler Parts and Q&A

Intercooler
1K0-145-803-AE
Q: What are the key steps and considerations for inspecting, diagnosing, and replacing the Exhaust Manifold, Intercooler and Turbocharger on Volkswagen Jetta?
A:
The turbocharger is a delicate section prone to severe damages with poor lubrication or foreign material getting into the air intake duct and failure is shown by low engine performance, blue or gray exhaust smoke or peculiar noises. Checks To ensure that there are no problems, examine the intake air duct of the engine to identify looseness or damage, verify that the air intake system is not obstructed by anything, and verify that the air filter is not dirty or that the intercooler is not damaged. Also check system vacuum hoses, wiring, and electrical connectors to be loose or corroded. See that the wastegate actuator connection is not binding, and inspect the exhaust system, lubricating oil supply and drainback lines, and coolant supply and return lines, as well as the damage or restriction. In case a replacement is required, replace the engine oil and filter. Full diagnosis involves special equipment and methods and thus in case of the initial checks failing to detect the issue, visit a dealer service department or a repair facility equipped with the necessary equipment. Removal should be done by warming up the engine and emptying the oil then letting it cool and emptying the cooling system. Unscrew the negative battery cable, loosen the right-front wheel bolts, hoist up the vehicle, and take off the right-front wheel. Take off the splash shield and engine cover undervehicle, and then take care of certain steps according to the types of engines such as removing the heat shields, coolant hose and electrical contacts and finally removing the turbocharger out of the car. The process of installation includes following all fasteners with anti-seize compound, changing seals and gaskets, fasteners, adding oil to the turbocharger, and proper alignment of the exhaust system followed by refilling engine oil and coolant. To replace charge air cooler, it should be raised and then the required parts removed and several steps followed depending on the engine type and bolts must be installed and tightened in a diagonal shape.