Parts for your 2017 Audi Q5-Drive belt pulley

2017 Audi Q5 drive-belt pulley — what it does and how to look after it

Yes, the 2017 Audi Q5 is fitted with drive-belt pulleys. Audi’s factory repair information (ElsaPro/Workshop Manual, Rep. Gr. 13 – Poly V-belt drive for Type 8R, MY2017) details a serpentine (multi‑rib) auxiliary belt running over a crankshaft pulley, an overrunning alternator pulley (OAP), a tensioner and idler pulleys, plus the A/C compressor and, where fitted, a power steering pump. Major aftermarket catalogues from Gates and Dayco list belts, tensioners, idlers and alternator pulleys specifically for 2017 Q5 engines (2.0 TFSI, 3.0 TFSI, 2.0 TDI, 3.0 TDI). Schaeffler INA technical literature on the OAP further confirms this setup is used on these Audi applications. So the drive-belt pulley is absolutely relevant on this model.

On a 2017 Audi Q5, the drive-belt pulleys keep the auxiliary systems moving smoothly. The crankshaft pulley powers the belt, the alternator’s overrunning pulley decouples engine torsional pulses so the belt doesn’t flap, and the tensioner/idler pulleys guide and maintain belt tension. Together they help the alternator charge properly, the A/C stay cold and, on some engines, the steering assistance behave as it should. When these pulleys wear, owners might hear chirps at idle, see belt flutter, or feel a brief squeal on start-up. Left too long, that can turn into poor charging, warning lights and a shredded belt.

Servicing wise, it pays to have the belt and pulleys inspected at every scheduled service. There’s no universal fixed interval from Audi for the auxiliary belt on this model, but many technicians recommend replacing the belt around 90,000–120,000 km or six years, earlier if there are cracks, glazing or frayed ribs. Best practice is to replace the belt, tensioner and idler together. The alternator’s OAP should be checked for one-way operation and smooth freewheeling, any roughness, wobble or noise means it’s due. Using quality parts from known brands and following the workshop manual procedures (alignment, routing and torque specs) avoids comebacks.

A few simple tips make life easier:

• Listen for chirps or rattles at idle and on overrun, that often points to the OAP or tensioner.
• Watch the belt with the engine idling, visible flutter suggests a weak tensioner or failing OAP.
• If a pulley is replaced, check belt condition and alignment straight away to prevent premature wear.

With the right parts and a careful install, the Q5’s drive-belt pulleys will run quietly for years and keep every accessory happy.

FAQs

How can someone tell a drive-belt pulley or OAP is failing on a 2017 Audi Q5?
Common signs include a chirping or rattling noise at idle, belt flutter, intermittent battery/charging warnings, and a squeal right after a cold start. Technicians often test the alternator pulley by checking for smooth one-way rotation off the vehicle, any grinding, wobble or lock-up means replacement.

When should the serpentine belt and pulleys be replaced?
Inspect at every service. Many workshops suggest a belt change around 90,000–120,000 km or six years, sooner if there’s cracking, glazing or fraying. Tensioner and idler pulleys are commonly renewed with the belt, and the alternator’s overrunning pulley should be replaced if noisy or rough.

Is it safe to keep driving with a noisy pulley?
Not recommended. A failing pulley can quickly escalate to poor charging or a thrown belt, potentially leaving the vehicle without power steering assistance (if hydraulic) or A/C. Sorting it early avoids breakdowns and extra cost from collateral belt damage.