How to inspect the auxiliary drive belt for damage and wear for Petrol engines on Audi A3?

Apply the handbrake, then jack up the front of the vehicle and support it on axle stands. Using a socket on the crankshaft pulley bolt, turn the engine slowly clockwise to examine the full length of the drive belt. Look for cracks, splitting, and fraying on the surface of the belt, and check for signs of glazing, which appears as shiny patches, as well as separation of the belt plies. Use a mirror to inspect the underside of the drive belt. If any damage or wear is visible, or if there are traces of oil or grease, the belt should be renewed.

How to access and adjust the drive belt on Audi 100?

Where necessary, remove any covers for access to the auxiliary drivebelt. On the ADR engine, the main automatically tensioned ribbed belt drives the alternator and power steering pump, while the coolant pump is driven by a separate V-belt off the PAS pulley, and the air conditioning compressor is driven by a ribbed belt from a second pulley on the crankshaft. For the AAE, ABK, and AAD engines, the main V-belt drives the alternator and coolant pump, with a second V-belt for air conditioning models driving the compressor from the crankshaft. In the ACE and AAR engines, the main V-belt drives the power steering pump and coolant pump, while the alternator is driven by a ribbed belt from the crankshaft, and a further V-belt drives the compressor from the front of the crankshaft on air conditioning models. Examine the V-belt for damage and wear, using a mirror and possibly a torch, and turn the engine with a spanner on the crankshaft pulley to observe all areas of the belt. To check the tension of the drivebelt, depress it midway between the pulleys on the longest run; it should deflect by the specified amount. If adjustment is necessary for the alternator or power steering pump drivebelt, loosen the mounting bolts and adjustment nut, then turn the adjustment rack bolt until the correct tension is achieved, followed by tightening the lock nut and mounting bolts. For air conditioning compressor adjustments on 4-cylinder engines, alter the number of shims between the two halves of the pulley by unscrewing the nuts, removing the outer half, adding or removing shims, and then refitting and tightening the pulley half gradually while turning the engine slowly with a spanner. To renew the drivebelt, loosen mounting bolts and back off the adjustment until the belt can be removed, noting that another belt may need to be removed for access. Fit the new belt and adjust it as previously described.

Genuine Audi Drive Belt

Serpentine Belt

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89 Drive Belts found

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Audi Serpentine Belt Part Number: 07K-145-933-T
$70.21 MSRP: $98.34
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Product Specifications
- Other Name: Ribbedbelt; Serpentine Belt
Fits the following Audi Models:
- RS3 | 2022-2024, 2017-2020 | Base | 5 Cyl 2.5 L GAS
- TT RS Quattro | 2018-2022 | Base, Heritage Edition | 5 Cyl 2.5 L GAS
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Audi Serpentine Belt Part Number: 06C-903-137-E
$63.07 MSRP: $88.33
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Product Specifications
- Other Name: Ribbed Belt
Fits the following Audi Models:
- A4 | 2005 | Cabriolet | 6 Cyl 3.0 L GAS
- A4 Quattro | 2005-2006 | Cabriolet | 6 Cyl 3.0 L GAS
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Audi Serpentine Belt Part Number: 077-903-137-S
$63.07 MSRP: $88.33
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Product Specifications
- Other Name: Ribbed Belt
Fits the following Audi Models:
- A6 Quattro | 2000-2004 | Base | 8 Cyl 4.2 L GAS
- A8 Quattro | 2000-2003 | Base, L | 8 Cyl 4.2 L GAS
- S6 | 2002-2003 | Avant | 8 Cyl 4.2 L GAS
- S8 | 2001-2003 | Base | 8 Cyl 4.2 L GAS
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Audi Serpentine Belt Part Number: 077-903-137-AE
$67.82 MSRP: $94.98
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Product Specifications
- Other Name: Ribbed Belt
Fits the following Audi Models:
- A8 Quattro | 2004-2006 | Base, L | 8 Cyl 4.2 L GAS
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Audi Serpentine Belt Part Number: 059-903-137-AN
$84.49 MSRP: $118.34
You Save: $33.85 (29%)
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Product Specifications
- Other Name: Ribbed Belt
Fits the following Audi Models:
- A8 Quattro | 2014 | L TDI | 6 Cyl 3.0 L DIESEL
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Audi Serpentine Belt Part Number: 06E-903-137-AC
$84.49 MSRP: $118.34
You Save: $33.85 (29%)
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Product Specifications
- Other Name: Ribbed Belt
- Replaces: 06E-903-137-K
Fits the following Audi Models:
- A4 Quattro | 2009 | Base | 6 Cyl 3.2 L GAS
- A5 Quattro | 2008-2010 | Base | 6 Cyl 3.2 L GAS
- Q5 | 2009-2012 | Premium, Premium Plus, Prestige | 6 Cyl 3.2 L GAS
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Audi 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
Fits the following Audi Models:
- A4 | 2006-2008 | Base | 6 Cyl 3.2 L GAS
- A4 Quattro | 2005-2009 | Avant, Base, Cabriolet | 6 Cyl 3.2 L GAS
- A6 | 2006-2011 | Base | 6 Cyl 3.2 L GAS
- A6 Quattro | 2005-2008 | Avant, Base | 6 Cyl 3.2 L GAS
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Audi Serpentine Belt Part Number: 06E-903-137-N
$84.49 MSRP: $118.34
You Save: $33.85 (29%)
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Product Specifications
- Other Name: Ribbed Belt
Fits the following Audi Models:
- A6 Quattro | 2009-2011 | Avant, Base | 6 Cyl 3.0 L GAS
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Audi Serpentine Belt Part Number: 06E-903-137-Q
$84.49 MSRP: $118.34
You Save: $33.85 (29%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Ribbed Belt
Fits the following Audi Models:
- S4 | 2010-2013 | Base | 6 Cyl 3.0 L GAS
- S5 | 2010-2012 | Cabriolet | 6 Cyl 3.0 L GAS
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Audi Serpentine Belt Part Number: 06E-903-137-R
$84.49 MSRP: $118.34
You Save: $33.85 (29%)
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Product Specifications
- Other Name: Ribbed Belt
Fits the following Audi Models:
- A8 Quattro | 2013-2014 | Base, L | 6 Cyl 3.0 L GAS
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Audi Serpentine Belt Part Number: 06M-903-137-AA
$83.30 MSRP: $116.67
You Save: $33.37 (29%)
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Product Specifications
- Other Name: Ribbedbelt; Alternator Belt, Serpentine Belt
Fits the following Audi Models:
- A6 Quattro | 2019-2023 | Premium, Premium Plus, Prestige | 6 Cyl 3.0 L MILD HYBRID EV-GAS (MHEV)
- A6 allroad | 2020-2023 | Premium Plus, Prestige | 6 Cyl 3.0 L MILD HYBRID EV-GAS (MHEV)
- A7 Sportback | 2019-2023 | Premium, Premium Plus, Prestige | 6 Cyl 3.0 L MILD HYBRID EV-GAS (MHEV)
- A8 Quattro | 2019-2023 | L | 6 Cyl 3.0 L MILD HYBRID EV-GAS (MHEV)
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Audi Serpentine Belt Part Number: 06M-903-137-AN
$82.11 MSRP: $115.01
You Save: $32.90 (29%)
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Product Specifications
- Other Name: Ribbedbelt; Alternator Belt, Serpentine Belt
Fits the following Audi Models:
- S6 | 2023 | Premium, Premium Plus, Prestige | 6 Cyl 2.9 L MILD HYBRID EV-GAS (MHEV)
- S7 Sportback | 2023 | Premium, Premium Plus, Prestige | 6 Cyl 2.9 L MILD HYBRID EV-GAS (MHEV)
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Audi Serpentine Belt Part Number: 066-145-933-J
$71.39 MSRP: $99.98
You Save: $28.59 (29%)
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Product Specifications
- Other Name: Double Belt
- Replaces: 022-145-933-G
Fits the following Audi Models:
- TT Quattro | 2004-2006 | Base, Special Edition | 6 Cyl 3.2 L GAS
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Audi Serpentine Belt Part Number: 06E-903-137-AE
$64.25 MSRP: $89.98
You Save: $25.73 (29%)
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Product Specifications
- Other Name: Ribbed Belt
Fits the following Audi Models:
- Q7 | 2011-2015 | Premium, Premium Plus, Prestige | 6 Cyl 3.0 L GAS
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Audi Serpentine Belt Part Number: 059-903-137-AL
$72.58 MSRP: $101.66
You Save: $29.08 (29%)
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Product Specifications
- Other Name: Ribbed Belt
Fits the following Audi Models:
- Q7 | 2013-2015 | TDI Premium, TDI Premium Plus, TDI Prestige | 6 Cyl 3.0 L DIESEL
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Audi Serpentine Belt Part Number: 059-903-137-R
$72.58 MSRP: $101.66
You Save: $29.08 (29%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Ribbed Belt
- Replaces: 059-903-137-AC
Fits the following Audi Models:
- Q7 | 2009-2014 | TDI, TDI Premium, TDI Premium Plus, TDI Prestige | 6 Cyl 3.0 L DIESEL
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Audi Serpentine Belt Part Number: 07P-145-933-E
$73.77 MSRP: $103.32
You Save: $29.55 (29%)
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Product Specifications
- Other Name: Ribbed Belt
Fits the following Audi Models:
- A8 Quattro | 2015-2016 | L W12 | 12 Cyl 6.3 L GAS
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Audi Serpentine Belt Part Number: 07L-903-137-T
$85.68 MSRP: $120.01
You Save: $34.33 (29%)
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Product Specifications
- Other Name: Ribbed Belt
Fits the following Audi Models:
- R8 | 2014-2015, 2010-2012 | Base, GT, GT Spyder, Plus, Spyder | 10 Cyl 5.2 L GAS
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Audi Serpentine Belt Part Number: 059-903-137-AG
$96.39 MSRP: $134.99
You Save: $38.60 (29%)
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Product Specifications
- Other Name: Ribbed Belt
Fits the following Audi Models:
- A6 Quattro | 2014-2016 | TDI Premium Plus, TDI Prestige | 6 Cyl 3.0 L DIESEL
- A7 Quattro | 2014-2016 | TDI Premium Plus, TDI Prestige | 6 Cyl 3.0 L DIESEL
- Q5 | 2014-2016 | TDI Premium Plus, TDI Prestige | 6 Cyl 3.0 L DIESEL
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Audi Serpentine Belt Part Number: 077-903-137-Q
$107.56 MSRP: $150.65
You Save: $43.09 (29%)
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Product Specifications
- Other Name: Ribbed Belt
Fits the following Audi Models:
- A6 Quattro | 2002-2004 | Base | 8 Cyl 4.2 L GAS
- A8 | 1997-1999 | Base | 8 Cyl 3.7 L GAS
- A8 Quattro | 1997-1999 | Base | 8 Cyl 4.2 L GAS
- S6 | 2002-2003 | Avant | 8 Cyl 4.2 L GAS
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Audi Drive Belt

The drive belt is one of the many engine components, with others, that convey power to several factors, such as the water pump, the power steering pump, the alternator, and the air conditioning compressor. There are one or two drive belts in a vehicle, which help the power transmission. Although made of strong rubber, the drive belt must be worn out over time. Specifically, it is recommended that drivers check Audi drive belts over time that the car has been driven a distance of 45,000 to 75,000 or throughout 3 to 5 years. During riding, a belt can produce abnormal sounds like screeches or chirps, which is an indication of replacement. Otherwise, the belt in question might break at the worst possible time. If the drive belt tears, the wheels will be turned with difficulty, which makes it almost impossible to control the car, and an accident is likely. To avoid such an accident, you should take time to examine your Audi drive belt and replace it if worn out.

It is better to choose OEM parts when it comes to the time for fixing them. Why? Because they fit perfectly well and ensure safety. For people who prefer doing their maintenance, the genuine Audi Drive Belt is quite perfect. At AudiPartsGiant.com, we specialize in genuine Audi Drive Belts only. Also, we offer an extensive online catalog with many categories, ample stock, and secure shopping. The Audi Drive Belt is shipped directly from authorized Audi dealers at competitive prices. So trust us, and we will give you nothing but superior service. Depend on us for all your genuine parts needs, and then we will keep your automobile moving smoothly.

Audi Drive Belt Parts and Q&A

Serpentine Belt
04L-260-849-AB
Q: How to inspect the auxiliary drive belt for damage and wear for Petrol engines on Audi A3?
A:
Apply the handbrake, then jack up the front of the vehicle and support it on axle stands. Using a socket on the crankshaft pulley bolt, turn the engine slowly clockwise to examine the full length of the drive belt. Look for cracks, splitting, and fraying on the surface of the belt, and check for signs of glazing, which appears as shiny patches, as well as separation of the belt plies. Use a mirror to inspect the underside of the drive belt. If any damage or wear is visible, or if there are traces of oil or grease, the belt should be renewed.
A/C Belt
034-260-849
Q: How to access and adjust the drive belt on Audi 100?
A:
Where necessary, remove any covers for access to the auxiliary drivebelt. On the ADR engine, the main automatically tensioned ribbed belt drives the alternator and power steering pump, while the coolant pump is driven by a separate V-belt off the PAS pulley, and the air conditioning compressor is driven by a ribbed belt from a second pulley on the crankshaft. For the AAE, ABK, and AAD engines, the main V-belt drives the alternator and coolant pump, with a second V-belt for air conditioning models driving the compressor from the crankshaft. In the ACE and AAR engines, the main V-belt drives the power steering pump and coolant pump, while the alternator is driven by a ribbed belt from the crankshaft, and a further V-belt drives the compressor from the front of the crankshaft on air conditioning models. Examine the V-belt for damage and wear, using a mirror and possibly a torch, and turn the engine with a spanner on the crankshaft pulley to observe all areas of the belt. To check the tension of the drivebelt, depress it midway between the pulleys on the longest run; it should deflect by the specified amount. If adjustment is necessary for the alternator or power steering pump drivebelt, loosen the mounting bolts and adjustment nut, then turn the adjustment rack bolt until the correct tension is achieved, followed by tightening the lock nut and mounting bolts. For air conditioning compressor adjustments on 4-cylinder engines, alter the number of shims between the two halves of the pulley by unscrewing the nuts, removing the outer half, adding or removing shims, and then refitting and tightening the pulley half gradually while turning the engine slowly with a spanner. To renew the drivebelt, loosen mounting bolts and back off the adjustment until the belt can be removed, noting that another belt may need to be removed for access. Fit the new belt and adjust it as previously described.