Where is the Audi engine number located?
3 Answers
Audi engine numbers are located on the inclined surface of the cylinder block at the rear end of the engine where it connects to the transmission. The engine number is an identification code assigned by the engine manufacturer in accordance with relevant regulations, corporate or industry practices, and engine attributes to a batch of identical products. It represents information such as the manufacturer, specifications, performance, features, manufacturing process, intended use, and production batch of the engine. Taking the 2020 Audi A4L 35 TFSI Fashion Dynamic model as an example: this vehicle is produced by FAW-Volkswagen Audi, classified as a mid-size car, with a turbocharged intake system, maximum horsepower of 150 PS, maximum torque of 270 Nm, equipped with a 7-speed dual-clutch transmission, and configured as a 4-door, 5-seat sedan.
Last time I helped my friend locate the engine number on his A4, it took quite a while. The thing is usually engraved on the metal surface of the engine block. The most common spot is on the right side of the engine after opening the hood – look near the transmission connection where there's a small flat area stamped with an alphanumeric combination. The position is particularly awkward, so you'll need a phone flashlight. For older Audi models with longitudinal engines, it might be hidden near the firewall, so keep a small mirror handy. Actually, the vehicle license and registration documents also have backup records. If you really can't find it, try checking the chassis at a repair shop with a lift. Remember to wipe off any grease before searching. The VIN at the lower left corner of the windshield is much easier to spot.
Finding the Audi engine number does require some patience. Based on the models I've encountered: for transverse-mounted engines like the A3/Q3, it's usually located below the intake manifold, on the left side of the cylinder block near the exhaust manifold. For longitudinal engines like the A6/A8, you might need to look from underneath the vehicle. Last week, my neighbor's Q5 had its number blocked by piping during the annual inspection, and we had to remove the intake pipe cover to see it. I recommend doing this when the engine is cold, bringing a strong flashlight, and checking for any signs of grinding or modification. If you really can't find it, don't force it - a dealership's specialized lift can locate it in just three minutes.
