A Practical Guide to the 2009-2017 Audi Q5 Accessory Drive Belt
Understand the symptoms of a failing accessory belt and how to choose the right replacement for your Q5.
- Replace the belt, tensioner, and idler pulleys together as a kit to ensure reliability and avoid future labor costs.
- A squealing noise is most often caused by a bad tensioner, not the belt itself.
- If your belt breaks, pull over immediately. Driving without a belt can cause loss of control and severe engine damage from overheating.
- Choose a high-quality aftermarket brand like Gates, Continental, or Dayco for OEM-level performance without the dealer price tag.
Is Your Audi Q5 Accessory Belt Failing?
The accessory drive belt operates in a hot, demanding environment. Over time, the rubber will crack and wear out. Ignoring the warning signs can leave you stranded. A broken belt means you will lose power steering, your battery will stop charging, and your engine could overheat, leading to serious damage.
Symptoms of a Worn-Out Belt
Pay attention to these common signs that your belt needs to be replaced:
- Squealing or Chirping Noises: This is the most common symptom. You may hear a high-pitched squeal from the engine, especially when you first start the car or turn on the A/C. 🎬 Watch: How to diagnose a squeaking or squealing serpentine belt This noise often points to a worn belt or a failing belt tensioner.
- Visible Wear: Pop the hood and look at the belt. If you see cracks, frayed edges, missing chunks, or a smooth, shiny surface, it's time for a replacement.
- System Failures: A battery warning light on your dashboard is a major red flag that the alternator is no longer spinning. You may also experience very heavy steering or an A/C that no longer blows cold air.
Known Issue: Belt Tensioner Problems
Audi has issued a Technical Service Bulletin (TSB 13-24-24) for grinding or squeaking noises related to the accessory drive system. The cause is often a faulty belt tensioner, not the belt itself. A weak tensioner can't keep the belt tight, causing noise and leading to premature failure of a brand-new belt. For this reason, mechanics strongly recommend replacing the belt, tensioner, and any idler pulleys at the same time.
Choosing the Right Aftermarket Belt
You do not need to buy a genuine Audi part to get a quality belt. Many aftermarket brands provide the same level of performance and durability for a lower price. For a premium vehicle like the Q5, it's best to stick with trusted brands.
- OEM-Equivalent Brands (Best Choice): Brands like Gates and Continental are known to be original equipment suppliers to European automakers, including Audi. Choosing one of these ensures a perfect fit and long, quiet operation. Bando and Mitsuboshi are also high-quality OEM suppliers that make reliable belts.
- Quality Aftermarket Brands (Good Choice): Dayco and ACDelco are well-respected brands that produce durable belts meeting or exceeding OEM specifications. They are a dependable choice for your Q5.
- Performance Brands: A brand like APR may offer belts designed for modified engines, such as those with an upgraded supercharger pulley. These are typically not necessary for a standard vehicle.
Pro Tip: Always buy a complete kit that includes the belt, tensioner, and idler pulley(s). This addresses the most common failure point (the tensioner) and saves you money on labor in the long run.
Accessory Drive Belt Replacement Cost for 2009-2017 Audi Q5
The total cost depends on whether you do the job yourself or hire a professional. Remember that replacing the tensioner at the same time will increase the parts cost but is highly recommended.
| Part or Service | Estimated Cost |
|---|---|
| New Aftermarket Belt Only | $14 - $76 |
| New OEM Belt Only | $40 - $120 |
| Shop Labor (Belt Only) | $100 - $200 |
| Total Professional Replacement (Belt Only) | $114 - $320 |
| Total Professional Replacement (Belt & Tensioner Kit) | $400 - $650+ |
Frequently Asked Questions
When should I replace my Q5's accessory belt?
Most belts last between 60,000 and 100,000 miles. However, it's best to inspect the belt for cracks or fraying at every oil change. Some Audi maintenance schedules recommend replacement as early as 55,000 miles, especially for the 3.0T engine.
🎬 Watch: 3.0T supercharger and accessory belt replacement guideIs it okay to only replace the belt?
While you can, it is not recommended. The belt tensioner is a frequent failure point and the cause of most belt noises. Replacing the belt, tensioner, and idlers together as a kit is the most reliable and cost-effective repair.
Why is my new belt squeaking?
If a new belt is making noise, the problem is almost always a weak or failing tensioner that isn't providing enough tension. It could also be caused by misaligned pulleys or fluid contamination like oil or coolant on the belt.
Can I replace the accessory belt myself?
For many Q5 models, especially those with the 2.0T engine, this is a DIY-friendly job that can be done with basic hand tools. 🎬 See this 2.0T belt and tensioner replacement walkthrough Access on the V6 engines can be much tighter, potentially requiring more complex steps like putting the vehicle into a "service position."
Helpful Videos
Technical Specifications
OEM Part Numbers: 06E903137T 06H903137C 059903137H
The accessory belt for the 2009-2017 Audi Q5 is a multi-ribbed (poly-v) serpentine belt. The specific length and number of ribs depend on your vehicle's engine (2.0T, 3.2L, 3.0T) and options. Always verify the correct part number for your specific vehicle.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Audi Q5: