2009 Audi Q7 — 3.0 TDI Premium

The 2009 Audi Q7 3.0 TDI Premium came from the factory equipped with 265/50R19 tires. If your vehicle has since been fitted with aftermarket or upsized wheels, your actual tire size may no longer match this factory spec — always confirm against your door placard before buying.

265/50R19

Section width265 mm
Aspect ratio (sidewall height)50% (132.5 mm)
Rim diameter19"
Overall tire diameter~29.4"
Revolutions per mile~685

Compare prices at:

What this size means for your Audi Q7

On the 2009 Audi Q7 3.0 TDI Premium, the factory 265/50R19 measures about 29.4″ in overall diameter with a 132.5 mm (5.2″) sidewall, and completes roughly 685 revolutions per mile. Its 50-series aspect ratio gives a balanced everyday-passenger profile — enough sidewall to soak up road shock while keeping steering response crisp. In tire terms it is a passenger (P-metric / Euro-metric) size.

On a vehicle of this age, the Audi Q7 may have been refitted with a slightly different replacement size somewhere in its life, so check the current sidewall — not just the factory spec — before buying.

Other 2009 Audi Q7 trims

Audi Q7 tire sizes by year

See every Audi Q7 year & trim →

How to read a tire size

A tire size like 225/45R17 breaks down into three parts: the first number is the section width in millimeters (the tire's width from sidewall to sidewall), the second is the aspect ratio — the sidewall's height as a percentage of that width — and the number after the "R" is the rim diameter in inches. A letter prefix (P or LT) indicates Passenger or Light Truck construction; its absence usually means Euro-metric sizing.

Some trucks and off-road tires instead use "flotation" sizing, like 37X12.50R17 — here the numbers are the tire's overall diameter and width in inches directly, with the rim diameter last.

Always verify against the tire information placard on your driver's-side door jamb or your owner's manual before purchasing — tire size can vary by factory option package even within the same trim.