How to remove and reinstall the Alternator and ribbed belt in 1.8L on Audi TT Quattro?

Remove sound absorber panels from the engine, battery, top of the lock carrier, and coolant reservoir. Disconnect the battery negative terminal. Release tension on the ribbed belt and mark its running direction if re-using. Lock the ribbed belt tensioner with an appropriate-sized drift or special tool T10060, then remove the ribbed belt. For vehicles with a 180 hp engine, remove the mounting bolts at the front of the engine and unclip the secondary air injection hose. For vehicles with a 225 hp engine, disconnect hoses and clamps to remove the intake air duct. Seal off openings of the charge air circuit with clean rags to prevent dirt entry. Loosen the clamp and remove the vacuum hose from the intake manifold. Unbolt the mounting bracket for solenoid valves from the front of the intake manifold, detach the dipstick guide tube, disconnect the harness connector, and unscrew the mounting bolts for the solenoid valve. Unclip the vacuum line from the retaining clip and remove the solenoid valve mounting bracket. Use a small screwdriver to release the locking tab and remove the harness connector. Remove the nut from the positive alternator terminal and disconnect the wiring harness retainer from the back of the alternator, positioning the wiring to the side. Remove the alternator mounting bolts and lift the alternator upward from the mounting bracket. Before installing the alternator, drive the threaded sleeves approximately 4 mm in the direction of the arrows. Install in reverse order of removal, ensuring that if the belt was removed, it is installed with the same running direction as previously marked, and that the ribbed belt is correctly seated in the pulleys. After installing the alternator, reconnect the battery and run the engine briefly, then shut it off and check that the ribbed belt remains correctly seated in the belt pulleys.

Genuine Audi TT Quattro Alternator

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19 Alternators found

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Audi TT Quattro Alternator Part Number: 06H-903-017-E
$650.93 MSRP: $841.54
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Product Specifications
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2011-2015 Audi TT Quattro | Base, Premium Plus, Prestige | 4 Cyl 2.0 L GAS
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Audi TT Quattro Alternator Part Number: 06H-903-017-EX
$568.10 MSRP: $731.74
You Save: $163.64 (23%)
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Product Specifications
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2011-2012 Audi TT Quattro | Base, Premium Plus, Prestige | 4 Cyl 2.0 L GAS
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Audi TT Quattro Alternator Part Number: 06F-903-023-HX
$587.00 MSRP: $754.82
You Save: $167.82 (23%)
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Product Specifications
- Replaces: 06F-903-023-CX
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2008-2010 Audi TT Quattro | Base | 4 Cyl 2.0 L GAS, 6 Cyl 3.2 L GAS
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Audi TT Quattro Alternator Part Number: 06F-903-023-F
$925.21 MSRP: $1196.14
You Save: $270.93 (23%)
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Product Specifications
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2009 Audi TT Quattro | Base | 4 Cyl 2.0 L GAS
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Audi TT Quattro Alternator Part Number: 06J-903-024-D
$929.39 MSRP: $1201.53
You Save: $272.14 (23%)
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Product Specifications
- Replaces: 06J-903-023-B, 06K-903-015, 06J-903-023-H
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2016-2018 Audi TT Quattro | Base | 4 Cyl 2.0 L GAS
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Audi TT Quattro Alternator Part Number: 06K-903-024-C
$934.14 MSRP: $1207.68
You Save: $273.54 (23%)
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Product Specifications
- Replaces: 06K-903-024-A, 06J-903-023-A, 06J-903-023-G, 06K-903-015-A
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2016-2018 Audi TT Quattro | Base | 4 Cyl 2.0 L GAS
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Audi TT Quattro Alternator Part Number: 06J-903-023-Q
$946.04 MSRP: $1223.06
You Save: $277.02 (23%)
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Product Specifications
- Replaces: 06J-903-023-QX
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2013-2015 Audi TT Quattro | Base, Premium Plus, Prestige | 4 Cyl 2.0 L GAS
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Audi TT Quattro Alternator Part Number: 07K-903-023-A
$972.81 MSRP: $1257.68
You Save: $284.87 (23%)
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Product Specifications
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2012-2013 Audi TT Quattro | Premium Plus, Prestige | 4 Cyl 2.0 L GAS
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Audi TT Quattro Alternator Part Number: 06B-903-016-AB
$1002.56 MSRP: $1296.14
You Save: $293.58 (23%)
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Product Specifications
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2009-2010 Audi TT Quattro | Base | 4 Cyl 2.0 L GAS
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Audi TT Quattro Alternator Part Number: 038-903-024-GX
$220.49 MSRP: $279.62
You Save: $59.13 (22%)
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Product Specifications
- Replaces: 038-903-023-SX
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2000-2006 Audi TT Quattro | ALMS Edition, Base, Special Edition | 4 Cyl 1.8 L GAS, 6 Cyl 3.2 L GAS
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Audi TT Quattro Alternator Part Number: 03L-903-023-AX
$347.41 MSRP: $446.15
You Save: $98.74 (23%)
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Product Specifications
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2011-2015 Audi TT Quattro | Base, Premium Plus, Prestige | 4 Cyl 2.0 L GAS
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Audi TT Quattro Alternator Part Number: 038-903-018-QX
$492.48 MSRP: $633.29
You Save: $140.81 (23%)
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Product Specifications
- Replaces: 038-903-018-BX, 028-903-031-X
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2000-2006 Audi TT Quattro | ALMS Edition, Base, Special Edition | 4 Cyl 1.8 L GAS, 6 Cyl 3.2 L GAS
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Audi TT Quattro Alternator Part Number: 028-903-029-GX
$551.94 MSRP: $711.52
You Save: $159.58 (23%)
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Product Specifications
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2000-2006 Audi TT Quattro | ALMS Edition, Base, Special Edition | 4 Cyl 1.8 L GAS, 6 Cyl 3.2 L GAS
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Audi TT Quattro Alternator Part Number: 06K-903-024-CX
$541.85 MSRP: $697.12
You Save: $155.27 (23%)
Ships in 1-2 Business Days
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Product Specifications
- Replaces: 06J-903-023-AX, 06K-903-024-AX
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2016-2018 Audi TT Quattro | Base | 4 Cyl 2.0 L GAS
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Audi TT Quattro Alternator Part Number: 06B-903-019-EX
$568.10 MSRP: $731.74
You Save: $163.64 (23%)
Ships in 1-2 Business Days
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Product Specifications
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2009-2010 Audi TT Quattro | Base | 4 Cyl 2.0 L GAS
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Audi TT Quattro Alternator Part Number: 06K-903-023-J
$865.71 MSRP: $1119.23
You Save: $253.52 (23%)
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Product Specifications
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2022-2023 Audi TT Quattro | Base | 4 Cyl 2.0 L GAS
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Audi TT Quattro Alternator Part Number: 06J-903-023-QX
$946.04 MSRP: $1223.06
You Save: $277.02 (23%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Replaced by: 06J-903-023-Q
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2013-2015 Audi TT Quattro | Base, Premium Plus, Prestige | 4 Cyl 2.0 L GAS
View related parts
Audi TT Quattro Alternator Part Number: 03L-903-023
$1002.56 MSRP: $1296.14
You Save: $293.58 (23%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2011-2015 Audi TT Quattro | Base, Premium Plus, Prestige | 4 Cyl 2.0 L GAS
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Audi TT Quattro Alternator Part Number: 06F-903-023-FX
$508.77 MSRP: $650.97
You Save: $142.20 (22%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Replaces: 07K-903-023-AX
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2009-2010 Audi TT Quattro | Base | 4 Cyl 2.0 L GAS

Audi TT Quattro Alternator

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Audi TT Quattro Alternator Parts and Q&A

Alternator
028-903-029-GX
Q: How to remove and reinstall the Alternator and ribbed belt in 1.8L on Audi TT Quattro?
A:
Remove sound absorber panels from the engine, battery, top of the lock carrier, and coolant reservoir. Disconnect the battery negative terminal. Release tension on the ribbed belt and mark its running direction if re-using. Lock the ribbed belt tensioner with an appropriate-sized drift or special tool T10060, then remove the ribbed belt. For vehicles with a 180 hp engine, remove the mounting bolts at the front of the engine and unclip the secondary air injection hose. For vehicles with a 225 hp engine, disconnect hoses and clamps to remove the intake air duct. Seal off openings of the charge air circuit with clean rags to prevent dirt entry. Loosen the clamp and remove the vacuum hose from the intake manifold. Unbolt the mounting bracket for solenoid valves from the front of the intake manifold, detach the dipstick guide tube, disconnect the harness connector, and unscrew the mounting bolts for the solenoid valve. Unclip the vacuum line from the retaining clip and remove the solenoid valve mounting bracket. Use a small screwdriver to release the locking tab and remove the harness connector. Remove the nut from the positive alternator terminal and disconnect the wiring harness retainer from the back of the alternator, positioning the wiring to the side. Remove the alternator mounting bolts and lift the alternator upward from the mounting bracket. Before installing the alternator, drive the threaded sleeves approximately 4 mm in the direction of the arrows. Install in reverse order of removal, ensuring that if the belt was removed, it is installed with the same running direction as previously marked, and that the ribbed belt is correctly seated in the pulleys. After installing the alternator, reconnect the battery and run the engine briefly, then shut it off and check that the ribbed belt remains correctly seated in the belt pulleys.