What is the importance of the drive belt and how should it be inspected and replaced on Audi A4?

This is because the drivebelt is an essential part of the vehicle and is prone to failure with time hence it should be checked periodically and adjusted to prevent serious engine malfunctions. These types of vehicles use one self adjusting serpentine drivebelt which drives accessorized components such as the alternator, power steering pump, water pump, and air conditioning compressor. To check on the drivebelt, turn off the engine, open the hood, and check the belt on its cracks, separation, fraying and glazing on both sides and twisting the belt. The ribs on the underside are to be of uniform depth and the tensioner takes care of the tension on the belt needing no manual alterations. To replace, to four-cylinder engines, to relieve the tension, rotate the tensioner, and remove the belt off the auxiliary components, and lay a new belt over the pulleys, making sure that it fits well in the grooves. In the 3.0L V6 engines, the front engine cover should be taken off and then the procedure should be followed. The front engine cover and fresh air intake ducts of 3.2L V6 engines should be disconnected and the radiator support panel moved into position. With the help of a box end wrench, the tensioner is relieved, the new belt is installed in the same way. Due to the replacement of the tensioner, it is necessary to unscrew the drivebelt and fasteners that hold the tensioner to the engine, and, in the case of 3.2L engines, a fastener may be found beneath the tensioner center cap. Installation is the opposite sequence of removal with all mounting bolts being tightened to the given torque.

Genuine Audi A4 Drive Belt

Serpentine Belt

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18 Drive Belts found

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Audi A4 Serpentine Belt Part Number: 06C-903-137-E
$63.07 MSRP: $88.33
You Save: $25.26 (29%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Ribbed Belt
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2005 Audi A4 | Cabriolet | 6 Cyl 3.0 L GAS
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Audi A4 Serpentine Belt Part Number: 06E-903-137-J
$83.30 MSRP: $116.67
You Save: $33.37 (29%)
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Product Specifications
- Other Name: Ribbed Belt
- Replaces: 06E-903-137-A
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2006-2008 Audi A4 | Base | 6 Cyl 3.2 L GAS
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Audi A4 Serpentine Belt Part Number: 06E-903-137-T
$97.57 MSRP: $136.65
You Save: $39.08 (29%)
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Product Specifications
- Other Name: Ribbed Belt
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2016 Audi A4 | Premium, Premium Plus | 4 Cyl 2.0 L GAS
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Audi A4 Serpentine Tensioner Part Number: 06E-903-133-AE
$185.64 MSRP: $260.00
You Save: $74.36 (29%)
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Product Specifications
- Other Name: Beltdamper; Serpentine Tensioner
- Replaces: 06E-903-133-R
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2016 Audi A4 | Premium, Premium Plus | 4 Cyl 2.0 L GAS
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Audi A4 Serpentine Belt Part Number: 06B-903-137-D
$39.93 MSRP: $55.00
You Save: $15.07 (28%)
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Product Specifications
- Other Name: Ribbed Belt
- Replaces: 06B-903-137-C
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2002-2003 Audi A4 | Base, Cabriolet | 4 Cyl 1.8 L GAS
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Audi A4 Serpentine Belt Part Number: 06D-903-137-E
$56.87 MSRP: $78.34
You Save: $21.47 (28%)
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Product Specifications
- Other Name: Ribbed Belt
- Replaces: 06D-903-137-A, 06B-903-137-J, 06D-903-137-C
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2004-2009 Audi A4 | Base, Cabriolet | 4 Cyl 1.8 L GAS, 4 Cyl 2.0 L GAS
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Audi A4 Serpentine Belt Part Number: 078-903-137-BC
$56.37 MSRP: $77.65
You Save: $21.28 (28%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Ribbed Belt
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 1998-2001 Audi A4 | Avant, Base | 6 Cyl 2.8 L GAS
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Audi A4 Serpentine Belt Part Number: 078-903-137-BJ
$54.45 MSRP: $75.00
You Save: $20.55 (28%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Ribbed Belt
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2002-2005 Audi A4 | Base, Cabriolet | 6 Cyl 3.0 L GAS
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Audi A4 Serpentine Belt Part Number: 06H-903-137-C
$65.45 MSRP: $91.67
You Save: $26.22 (29%)
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Product Specifications
- Other Name: Ribbed Belt
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2009-2012 Audi A4 | Base | 4 Cyl 2.0 L GAS
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Audi A4 Serpentine Belt Part Number: 078-903-137-BL
$58.08 MSRP: $80.00
You Save: $21.92 (28%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Ribbed Belt
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2000-2001 Audi A4 | Base | 6 Cyl 2.8 L GAS
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Audi A4 Serpentine Belt Part Number: 06J-260-849-F
$29.86 MSRP: $39.82
You Save: $9.96 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Ribbed Belt
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2013-2016 Audi A4 | Base, Premium, Premium Plus, Prestige | 4 Cyl 2.0 L GAS
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Audi A4 Serpentine Belt Part Number: 06L-903-137-A
$30.74 MSRP: $40.99
You Save: $10.25 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Ribbed Belt
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2017-2020 Audi A4 | Premium, Premium Plus, Prestige, Titanium | 4 Cyl 2.0 L GAS
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Audi A4 Serpentine Belt Part Number: 078-903-137-BD
$31.50 MSRP: $42.00
You Save: $10.50 (25%)
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Product Specifications
- Other Name: Ribbed Belt
- Replaces: 078-903-137-AR
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 1996-1997 Audi A4 | Base | 6 Cyl 2.8 L GAS
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Audi A4 Water Pump Belt Part Number: 06K-121-605-C
$32.61 MSRP: $43.48
You Save: $10.87 (25%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Tooth Belt; Belt, Drive Belt, Water Pump Belt
- Replaces: 06K-121-605
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2017-2020 Audi A4 | Premium, Premium Plus, Prestige, Titanium | 4 Cyl 2.0 L GAS
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Audi A4 Serpentine Belt Part Number: 06L-903-137-L
$50.08 MSRP: $68.99
You Save: $18.91 (28%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Ribbedbelt; Serpentine Belt
- Replaced by: 06N-903-137-B
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 2020 Audi A4 | Premium, Premium Plus, Prestige | 4 Cyl 2.0 L GAS
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Audi A4 A/C Belt Part Number: 06B-260-849-B
$23.36 MSRP: $31.15
You Save: $7.79 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Ribbedbelt
- Replaces: 06B-260-849-A, 058-260-849-A, 058-260-849
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 1997-2001 Audi A4 | Base | 4 Cyl 1.8 L GAS
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Audi A4 Serpentine Belt Part Number: 06B-903-137-E
$26.78 MSRP: $35.70
You Save: $8.92 (25%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Ribbed Belt
- Replaces: 06B-903-137
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 1997-2001 Audi A4 | Base | 4 Cyl 1.8 L GAS
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Audi A4 Power Steering Belt Part Number: 058-145-271
$12.48 MSRP: $16.25
You Save: $3.77 (24%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: V-Belt; Power Steering Belt
- Warranty: This genuine part is guaranteed by Audi's factory warranty.
Fits the following Vehicles:
- 1997-2001 Audi A4 | Base | 4 Cyl 1.8 L GAS

Audi A4 Drive Belt

To keep the engine parts running, the Audi A4 Drive Belt delivers the movement of the crankshaft to the alternator, power steering pump, and air conditioning compressor. The belt is a loop that runs around pulleys, and in modern versions looks like a serpentine or multi-groove band which winds around all the parts, reducing the number of parts applied yet maintaining efficiency of about 90 to 98 percent. Previous automotive layouts tended to rely on a single V-belt at a time, but these could slip or had to be adjusted frequently; thus the shift to an Audi serpentine design provided tighter traction, a simpler tensioning process, and higher load spike tolerance in everyday operation. The two types of belts use similar synthetic material that can work at temperatures between 35 and 85 degrees Celsius and normally last nearly 100,000 miles, although fraying or cracking requires immediate replacement to avoid shutdown of the parts and damage to the engine. The Drive Belt is a simple band that facilitates power transmission and provides an inexpensive, light, and safe alternative to gears or chain, yet cushions sudden bursts in torque. All Audis with an A4 badge enjoy these advantages, and current generations operate under the same fundamental principle of the Drive Belt that has underpinned Audi production, which ensures that charging, cooling, and climate systems all work in harmony with the engine. Audi drivers thus ought to appreciate that the Drive Belt is a small element that bears a large portion of the workload of the vehicle, highlighting the need to regularly check and replace it throughout the Audi line.

Choose original equipment manufacturer Drive Belt 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 Drive Belt at a good price? Come to our online store. We carry a wide range of genuine parts for your Audi A4 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 A4 needs now.

Audi A4 Drive Belt Parts and Q&A

Serpentine Belt
06B-903-137-D
Q: What is the importance of the drive belt and how should it be inspected and replaced on Audi A4?
A:
This is because the drivebelt is an essential part of the vehicle and is prone to failure with time hence it should be checked periodically and adjusted to prevent serious engine malfunctions. These types of vehicles use one self adjusting serpentine drivebelt which drives accessorized components such as the alternator, power steering pump, water pump, and air conditioning compressor. To check on the drivebelt, turn off the engine, open the hood, and check the belt on its cracks, separation, fraying and glazing on both sides and twisting the belt. The ribs on the underside are to be of uniform depth and the tensioner takes care of the tension on the belt needing no manual alterations. To replace, to four-cylinder engines, to relieve the tension, rotate the tensioner, and remove the belt off the auxiliary components, and lay a new belt over the pulleys, making sure that it fits well in the grooves. In the 3.0L V6 engines, the front engine cover should be taken off and then the procedure should be followed. The front engine cover and fresh air intake ducts of 3.2L V6 engines should be disconnected and the radiator support panel moved into position. With the help of a box end wrench, the tensioner is relieved, the new belt is installed in the same way. Due to the replacement of the tensioner, it is necessary to unscrew the drivebelt and fasteners that hold the tensioner to the engine, and, in the case of 3.2L engines, a fastener may be found beneath the tensioner center cap. Installation is the opposite sequence of removal with all mounting bolts being tightened to the given torque.