Parts for your 2008 Audi Q5-Drive belt

2008 Audi Q5 Drive Belt: What It Does and When To Replace It

A drive belt is absolutely relevant on the 2008 Audi Q5. Audi’s factory repair information (ElsaWin, Rep. Gr. 13 Poly V-belt for Q5 8R), Volkswagen Group ETKA parts listings, and major belt manufacturers’ catalogues (Gates, Dayco, Continental) all specify an auxiliary “poly‑V”/serpentine belt fitted to early Q5 models. So, yes—this Audi runs a drive belt to power key accessories.

On the 2008 Q5 engine range (2.0 TFSI, 3.2 FSI, 2.0 TDI, 3.0 TDI), the drive belt spins the alternator and air‑conditioning compressor, and on many variants it also turns the power steering pump. In some engines, the water pump is accessory-belt driven, in others it’s driven by a timing system. Either way, that single belt is critical for charging, cooling comfort, and hydraulic assist—if it fails, you’ll quickly notice warning lights, heavy steering, and poor battery charging.

For servicing, the smart move is to inspect the belt at every service. Look for glazing, cracks, fraying, missing ribs, or contamination from oil/coolant. Just as important is the condition of the automatic tensioner and idler pulleys—wobbly bearings or a weak tensioner will chew through even a brand-new belt.

• Typical replacement timing: around 90,000–120,000 km or 6–8 years, whichever comes first (earlier if noisy or damaged).
• Always replace the belt if it chirps, squeals on start-up, or shows rib cracking.
• Consider replacing the tensioner and idlers with the belt—cheap insurance against repeat labour.
• Use the exact belt spec for your VIN/engine code, the 8R platform has length and routing variations.

When fitting, confirm the routing diagram, seat the ribs correctly on every pulley, and spin accessories by hand to check for roughness. If there’s oil or coolant on the belt, find and fix the leak first—fluids quickly degrade belt rubber. After installation, run the engine and watch for tracking, a belt that walks off a pulley usually points to misalignment or a failing pulley bearing.

Because Australian and New Zealand conditions can be hot and dusty, a more frequent visual check is no bad thing—especially if the Q5 tows or spends time in city stop-start traffic. A fresh, correctly tensioned belt keeps the alternator charging, the A/C cool, and the steering light, so the Q5 stays pleasant to drive.

How often should the 2008 Audi Q5 drive belt be replaced?

Most workshops recommend inspection at every service and replacement around 90,000–120,000 km or 6–8 years. If there’s squeal, cracking, or belt contamination, replace it sooner. It’s common to swap the tensioner and idlers at the same time to avoid repeat labour.

What are the signs the Q5’s drive belt or tensioner is on the way out?

Squealing on cold start, battery light flickering, heavy steering, A/C that cuts in and out, or visible cracking and fraying on the belt. A chattering or wobbling tensioner, or pulley bearings that feel rough when spun by hand, also mean it’s time for parts.

Does the 2008 Q5 also have a timing belt?

It depends on the engine. Some Q5 engines use timing chains (e.g., 3.2 FSI, many TFSI/TDI variants), while others—particularly certain 2.0 TDI engines—use a timing belt. That’s separate from the accessory drive belt described here. Always check by VIN or engine code.