How to remove and install an Alternator in a car on Audi A6?

Disconnect the battery ground cable, raise the car and support it safely, then remove the lower engine cover. Remove the air cleaner duct mounting screws at the lock carrier and take out the air duct. Place the lock carrier in the service position. For a 2.7 liter turbocharged engine, loosen the right intercooler hose clamps and remove the hose. For automatic transmission, loosen the ATF lines and AC lines by loosening their respective bolts, then remove the line by taking out the bolts and hose clamp. For manual transmission, remove the A/C refrigerant lines mounting bracket above the torque arm, cut wire-ties, and unlatch tabs. Unhook the starter and alternator wires from the bracket, then remove the engine accessory belt, marking the direction of rotation if it is to be reused. Working under the right front of the engine, loosen the clamp and remove the cooling air duct from the alternator. At the rear of the alternator, detach the connectors from the alternator posts. Loosen and remove the alternator mounting fasteners, counterholding the nut to remove the top bolt and loosening the lower bolt. Remove the alternator from below, carefully moving the A/C refrigerant lines and other hoses and wires aside. Installation is the reverse of removal, ensuring that if reusing the accessory belt, it is installed in the previously marked direction, and check the belt ribs to ensure they fit the pulleys correctly.

Genuine Audi A6 Alternator

Generator

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20 Alternators found

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Audi A6 Alternator Part Number: 06H-903-018-M
$1201.90 MSRP: $1553.84
You Save: $351.94 (23%)
Ships in 1-2 Business Days
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Product Specifications
- Replaces: 06H-903-017-K
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2012-2013 Audi A6 | Premium, Premium Plus | 4 Cyl 2.0 L GAS
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Audi A6 Alternator Part Number: 06L-903-024-F
$520.03 MSRP: $672.31
You Save: $152.28 (23%)
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Product Specifications
- Replaced by: 06L-903-024-K
- Replaces: 06L-903-024-A
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2015-2017 Audi A6 | Premium, Premium Plus | 4 Cyl 2.0 L GAS
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Audi A6 Alternator Part Number: 06C-903-016-B
$642.06 MSRP: $830.08
You Save: $188.02 (23%)
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Product Specifications
- Other Name: Generator
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2002-2004 Audi A6 | Base | 6 Cyl 3.0 L GAS
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Audi A6 Alternator Part Number: 06E-903-016-K
$1210.81 MSRP: $1565.38
You Save: $354.57 (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:
- 2006-2008 Audi A6 | Base | 6 Cyl 3.2 L GAS
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Audi A6 Alternator Part Number: 06H-903-017-S
$1286.38 MSRP: $1663.06
You Save: $376.68 (23%)
Ships in 1-2 Business Days
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Product Specifications
- Replaces: 06H-903-017-SX, 06H-903-016-S
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2012-2015 Audi A6 | Premium, Premium Plus | 4 Cyl 2.0 L GAS
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Audi A6 Alternator Part Number: 078-903-016-H
$0.01
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Generator
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2001 Audi A6 | Base | 6 Cyl 2.8 L GAS
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Audi A6 Alternator Part Number: 078-903-015-FX
$365.89 MSRP: $471.00
You Save: $105.11 (23%)
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Product Specifications
- Replaces: 078-903-015-F, 078-903-015-CX
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 1995-2000 Audi A6 | Avant, Base | 6 Cyl 2.8 L GAS
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Audi A6 Alternator Part Number: 06L-903-024-FX
$501.90 MSRP: $646.15
You Save: $144.25 (23%)
Ships in 1-2 Business Days
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Product Specifications
- Replaces: 06L-903-024-AX
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2016-2017 Audi A6 | Premium, Premium Plus | 4 Cyl 2.0 L GAS
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Audi A6 Alternator Part Number: 058-903-018-X
$510.81 MSRP: $657.68
You Save: $146.87 (23%)
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Product Specifications
- Replaces: 058-903-018
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 1995-1999 Audi A6 | Avant, Base | 6 Cyl 2.8 L GAS
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Audi A6 Alternator Part Number: 06E-903-016-T
$706.86 MSRP: $913.85
You Save: $206.99 (23%)
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Product Specifications
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2009-2011 Audi A6 | Base | 6 Cyl 3.2 L GAS
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Audi A6 Alternator Part Number: 06H-903-017-DX
$742.56 MSRP: $960.00
You Save: $217.44 (23%)
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Product Specifications
- Replaced by: 06H-903-017-D
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2012 Audi A6 | Premium, Premium Plus | 4 Cyl 2.0 L GAS
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Audi A6 Alternator Part Number: 078-903-016-SX
$595.63 MSRP: $764.62
You Save: $168.99 (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:
- 2002-2004 Audi A6 | Base | 6 Cyl 3.0 L GAS
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Audi A6 Alternator Part Number: 06E-903-016-TX
$676.69 MSRP: $870.77
You Save: $194.08 (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:
- 2009-2011 Audi A6 | Base | 6 Cyl 3.2 L GAS
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Audi A6 Alternator Part Number: 06E-903-016-KX
$802.68 MSRP: $1032.29
You Save: $229.61 (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:
- 2006-2008 Audi A6 | Base | 6 Cyl 3.2 L GAS
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Audi A6 Alternator Part Number: 06H-903-018-LX
$868.27 MSRP: $1118.45
You Save: $250.18 (23%)
Ships in 1-2 Business Days
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Product Specifications
- Replaces: 06H-903-018-EX
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2017-2018 Audi A6 | Premium, Premium Plus, Sport | 4 Cyl 2.0 L GAS
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Audi A6 Alternator Part Number: 06H-903-018-L
$1154.29 MSRP: $1492.29
You Save: $338.00 (23%)
Ships in 1-2 Business Days
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Product Specifications
- Replaces: 06H-903-018-E
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2017-2018 Audi A6 | Premium, Premium Plus, Sport | 4 Cyl 2.0 L GAS
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Audi A6 Alternator Part Number: 06E-903-018-H
$1154.29 MSRP: $1492.29
You Save: $338.00 (23%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Replaces: 06E-903-018-HX
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2011 Audi A6 | Base | 6 Cyl 3.2 L GAS
View related parts
Audi A6 Alternator Part Number: 06H-903-017-SX
$1286.38 MSRP: $1663.06
You Save: $376.68 (23%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Replaced by: 06H-903-017-S
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2012-2015 Audi A6 | Premium, Premium Plus | 4 Cyl 2.0 L GAS
View related parts
Audi A6 Alternator Part Number: 079-903-015-X
$1270.50 MSRP: $1638.46
You Save: $367.96 (23%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Generator
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2006-2008 Audi A6 | Base | 6 Cyl 3.2 L GAS
View related parts
Audi A6 Alternator Part Number: 06B-903-018-EX
$392.43 MSRP: $501.91
You Save: $109.48 (22%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Replaces: 078-903-016-HX
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2001 Audi A6 | Base | 6 Cyl 2.8 L GAS

Audi A6 Alternator

The Audi A6 Alternator is basically a car's on-board electrical generator and battery charger. The Alternator turns some of the mechanical drive from the engine into controlled direct current for the operation of all systems. The Alternator is made from a two-piece cast aluminum shell, which holds a stationary stator around a rotor mounted on the shaft. A belt that is connected to the crankshaft of the Audi drives the rotor while the field's movement creates an alternating current in the stator windings. The built-in diodes located within the rectifier assembly convert the alternating current into direct current to be applied for battery charging and key Audi A6 electrical demand. The shaft is fitted with a pulley and a fan on its front. Furthermore, the bearing inside the drive-end housing keeps the shaft aligned. A second bearing in the rear housing supports the shaft's opposite end and carries brushes that feed field current into the rotor. The rectifier heat sinks are also located in the same rear part, and there may be a voltage regulator that alters field current to maintain output within safe limits. In applications where the regulator is not housed within the Alternator, its control function is performed electronically by the powertrain control module, although the regulation principle remains the same. When voltage is consistent, undercharge and overcharge are prevented. The battery maintains proper reserve for powering lights, infotainment, climate equipment, and other electrically driven features across the Audi lineup. Due to its reliable conversion of rotational energy into electricity, the Alternator is essential for the A6, ensuring that this Audi maintains stable electrical performance under all normal driving conditions.

Choose original equipment manufacturer Alternator for great performance and strong durability. They use Audi's official craftsmanship and high-grade materials, and meet strict quality standards. Are you looking for quality Alternator at a good price? Come to our online store. We carry a wide range of genuine parts for your Audi A6 and the prices are competitive. Each part comes with the manufacturer's warranty. You can install with confidence and get steady results. Over time, you'll save money and avoid hassle. Keep your maintenance simple and protect your vehicle with OEM parts. Get the quality your A6 needs now.

Audi A6 Alternator Parts and Q&A

Alternator
058-903-018-X
Q:
How to remove and install an Alternator in a car on Audi A6?
A:
Disconnect the battery ground cable, raise the car and support it safely, then remove the lower engine cover. Remove the air cleaner duct mounting screws at the lock carrier and take out the air duct. Place the lock carrier in the service position. For a 2.7 liter turbocharged engine, loosen the right intercooler hose clamps and remove the hose. For automatic transmission, loosen the ATF lines and AC lines by loosening their respective bolts, then remove the line by taking out the bolts and hose clamp. For manual transmission, remove the A/C refrigerant lines mounting bracket above the torque arm, cut wire-ties, and unlatch tabs. Unhook the Starter and alternator wires from the bracket, then remove the engine accessory belt, marking the direction of rotation if it is to be reused. Working under the right front of the engine, loosen the clamp and remove the cooling air duct from the alternator. At the rear of the alternator, detach the connectors from the alternator posts. Loosen and remove the alternator mounting fasteners, counterholding the nut to remove the top bolt and loosening the lower bolt. Remove the alternator from below, carefully moving the A/C refrigerant lines and other hoses and wires aside. Installation is the reverse of removal, ensuring that if reusing the accessory belt, it is installed in the previously marked direction, and check the belt ribs to ensure they fit the pulleys correctly.