Exact-fit serpentine belt
Multi-rib serpentine (6PK or 7PK) replacement for Audi A6.
Fitment matters because 85" - 100" (varies by engine and A/C option).
Check Price and Fitment⚙️Serpentine Belt
Audi A6 Serpentine Belt
Find serpentine belt routing diagrams, part numbers, and replacement instructions for your Audi A6. All years covered.
Last updated: 2026-05-07 • Reading time: 8 min • By AllOEMManuals Editorial Team
Quick Answer
The Audi A6 serpentine belt routes around the alternator, power steering pump, A/C compressor, and water pump. Belt length and routing vary by engine — see diagrams below.
| Generation | Years | Top spec |
|---|---|---|
| 2019-2024 | 2019-2024 | Multi-rib serpentine (6PK or 7PK) |
| 2013-2018 | 2013-2018 | Multi-rib serpentine (6PK or 7PK) |
| 2007-2012 | 2007-2012 | Multi-rib serpentine (6PK or 7PK) |
Factory Manual ConfirmationSerpentine Belt
Know the exact serpentine belt job for your Audi A6
The Audi A6 serpentine belt routes around the alternator, power steering pump, A/C compressor, and water pump. Belt length and routing vary by engine — see diagrams below.
Belt routing and length change with engine code, accessory package, and tensioner layout. Do not order parts off a generic diagram. Once the spec is confirmed, use the supplies and purchase links below to build the full one-trip shopping list before you start the repair.
Exact Vehicle Check
Use the archive navigator when you need the exact engine, trim, or production-branch manual instead of a broad year-range summary. That keeps the buying list and repair steps aligned with the real vehicle.
2013-2018
Representative 2013 manual branch for 2013-2018
Specifications Index
A6 Premium
Specifications Index — 2013 Audi A6 Premium Service Manual ~ LEMON Manuals LEMON Manuals: Repair Knowledge Reimagined Home >> Audi >> 2013 >> A6 Premium >> Repair and Diagnosis >> Quic...
Open factory section →Specifications Index
A6 Premium Plus
Specifications Index — 2013 Audi A6 Premium Plus Service Manual ~ LEMON Manuals LEMON Manuals: Repair Knowledge Reimagined Home >> Audi >> 2013 >> A6 Premium Plus >> Repair and Diagnos...
Open factory section →2007-2012
Representative 2007 manual branch for 2007-2012
3.2FSI Belt Tension Dampener Noisy (GROUP 13, NO. 06-01)
A6 Avant Quattro
3.2FSI Belt Tension Dampener Noisy (GROUP 13, NO. 06-01) — 2007 Audi A6 Avant Quattro Service Manual ~ LEMON Manuals LEMON Manuals: Repair Knowledge Reimagined Home >> Audi >> 2007 >>...
Open factory section →3.2FSI Belt Tension Dampener Noisy (GROUP 13, NO. 06-01)
A6 Base
3.2FSI Belt Tension Dampener Noisy (GROUP 13, NO. 06-01) — 2007 Audi A6 Base Service Manual ~ LEMON Manuals LEMON Manuals: Repair Knowledge Reimagined Home >> Audi >> 2007 >> A6 Base >...
Open factory section →2019-2024
2019-2024Belt TypeMulti-rib serpentine (6PK or 7PK)
Belt Length85" - 100" (varies by engine and A/C option)
Tensioner TypeAutomatic spring-loaded tensioner
Replacement Interval60,000 - 100,000 miles
Notes
- →Take a photo of the belt routing BEFORE removing the old belt
- →Use a 1/2" breaker bar or 15mm socket to release the automatic tensioner
- →Inspect the tensioner pulley and idler pulleys for bearing noise while the belt is off
- →A new belt may squeal briefly at startup — this usually stops within a few minutes
2013-2018
2013-2018Belt TypeMulti-rib serpentine (6PK or 7PK)
Belt Length85" - 100" (varies by engine and A/C option)
Tensioner TypeAutomatic spring-loaded tensioner
Replacement Interval60,000 - 100,000 miles
Notes
- →Take a photo of the belt routing BEFORE removing the old belt
- →Use a 1/2" breaker bar or 15mm socket to release the automatic tensioner
- →Inspect the tensioner pulley and idler pulleys for bearing noise while the belt is off
- →A new belt may squeal briefly at startup — this usually stops within a few minutes
2007-2012
2007-2012Belt TypeMulti-rib serpentine (6PK or 7PK)
Belt Length85" - 100" (varies by engine and A/C option)
Tensioner TypeAutomatic spring-loaded tensioner
Replacement Interval60,000 - 100,000 miles
Notes
- →Take a photo of the belt routing BEFORE removing the old belt
- →Use a 1/2" breaker bar or 15mm socket to release the automatic tensioner
- →Inspect the tensioner pulley and idler pulleys for bearing noise while the belt is off
- →A new belt may squeal briefly at startup — this usually stops within a few minutes
2001-2006
2001-2006Belt TypeMulti-rib serpentine (6PK or 7PK)
Belt Length85" - 100" (varies by engine and A/C option)
Tensioner TypeAutomatic spring-loaded tensioner
Replacement Interval60,000 - 100,000 miles
Notes
- →Take a photo of the belt routing BEFORE removing the old belt
- →Use a 1/2" breaker bar or 15mm socket to release the automatic tensioner
- →Inspect the tensioner pulley and idler pulleys for bearing noise while the belt is off
- →A new belt may squeal briefly at startup — this usually stops within a few minutes
1995-2000
1995-2000Belt TypeMulti-rib serpentine (6PK or 7PK)
Belt Length85" - 100" (varies by engine and A/C option)
Tensioner TypeManual adjustment bolt or automatic
Replacement Interval60,000 - 100,000 miles
Notes
- →Take a photo of the belt routing BEFORE removing the old belt
- →Check if your model uses automatic or manual tensioner adjustment
- →Inspect the tensioner pulley and idler pulleys for bearing noise while the belt is off
- →A new belt may squeal briefly at startup — this usually stops within a few minutes
1994-1994
1994-1994Belt TypeMulti-rib serpentine (6PK or 7PK)
Belt Length85" - 100" (varies by engine and A/C option)
Tensioner TypeManual adjustment bolt or automatic
Replacement Interval60,000 - 100,000 miles
Notes
- →Take a photo of the belt routing BEFORE removing the old belt
- →Check if your model uses automatic or manual tensioner adjustment
- →Inspect the tensioner pulley and idler pulleys for bearing noise while the belt is off
- →A new belt may squeal briefly at startup — this usually stops within a few minutes
Ready to BuyFitment-first picks for Audi A6
Buy the Exact Parts and Tools for This Job
These links are built from the same specs shown on this page so users can move from lookup to purchase faster. Confirm exact engine and trim if your vehicle has multiple variants, then build the full cart before you step away from the computer.
Affiliate disclosure: We may earn a commission at no extra cost to you. The goal is to get you to the right parts in one pass.
Spec Snapshot
- Belt Type
- Multi-rib serpentine (6PK or 7PK)
- Belt Length
- 85" - 100" (varies by engine and A/C option)
- Replacement Interval
- 60,000 - 100,000 miles
Belt tensioner and idler pulley kit
Replace wear parts that commonly cause belt squeal and early failure.
A worn tensioner can ruin a brand-new belt quickly.
Check Price and FitmentSerpentine belt service tool
Low-profile wrench tool for tight engine-bay access.
This job is much easier with the correct leverage tool.
Check Price and FitmentBreaker bar and ratchet set
Helps release the automatic tensioner cleanly before routing the new belt.
A long handle saves knuckles when the belt path is tight.
Check Price and FitmentShop towels and cleaning supplies
Keep the accessory drive clean while the belt is off.
Clean pulleys and hands make inspection easier and help reduce slip.
Check Price and FitmentBefore you buy, sanity-check the repair quote and the cart
If your shop quote looks high, run it through Quote Shield to catch overpricing before checkout. Then use the parts links above to lock in the one-trip plan.
One-Trip Shopping List
Recommended supplies and tools for this job, grouped so you can buy everything before the repair starts.
⚙️Shop →
Exact Serpentine Belt
Match engine-specific length and rib count for the cleanest fit.
🛠️Shop →
Belt Tensioner
Replace weak spring-loaded tensioners that cause squeal and slip.
🔩Shop →
Idler Pulley
Quiet bearing support when the belt is off anyway.
🧲Shop →
Pulley Puller Set
Useful for stubborn idler and tensioner pulley swaps.
🧰Shop →
Breaker Bar
Makes tensioner release easier in tight engine bays.
🧻Shop →
Shop Towels
Keep the accessory drive and your hands clean during inspection.
🧰View All →
Project Essentials
Basic tool sets, gloves, and cleaning supplies for your Audi A6 so the job is ready when the parts arrive.
Frequently Asked Questions
- How do I replace the serpentine belt on a Audi A6?
- Release tension on the automatic tensioner with a breaker bar, slide the old belt off, route the new belt per the diagram (usually on a sticker under the hood), and release the tensioner onto the new belt. The job takes 15-30 minutes.
- How do I know if my Audi A6 serpentine belt needs replacing?
- Signs include squealing at startup, visible cracks or fraying on the belt, loss of power steering or A/C, and the battery light coming on. Most belts should be replaced every 60,000-100,000 miles.
- What happens if the serpentine belt breaks on my Audi A6?
- If the serpentine belt breaks, you lose power steering, alternator charging, A/C, and (on some engines) the water pump. Pull over immediately — driving without the water pump will cause overheating and engine damage.
- Where is the belt routing diagram on a Audi A6?
- Most Audi A6 models have a belt routing diagram on a sticker under the hood, near the radiator support or on the inner fender. If it's missing, check the service manual or see the diagrams below.
Get the Complete Maintenance Schedule for Audi A6
Oil, filters, belts, brakes, and fluid intervals sent to your inbox. Unsubscribe anytime.
Not sure you want to DIY? Compare local shop pricing first.
Author & Review
Written by AllOEMManuals Editorial Team. Reviewed by ASE-certified technicians and updated with factory-reference checks for fitment-sensitive steps.
This guide was drafted with AI assistance and reviewed for accuracy by a human editor.
Last updated: 2026-05-07