
Engine identification number. 1.8L turbocharged petrol engine.
6-cylinder engine: The engine identification number is stamped on the inside of the right cylinder block between the cylinder head and the hydraulic pump (diesel engine: between the cylinder head and the high pressure fuel pump).
Warning: The engine identification number is also located on the sticker on the timing belt cover. In addition, the engine identification code is located on the vehicle data plate in the spare wheel well or on the bottom of the luggage compartment and is listed in the service book.
Decoding the identification number:
| WAU | ZZZ | 8E | Z | 3 | A | 000 001 |
| 1 | 2 | 3 | 4 | 5 | 6 | 7 |
1 — Manufacturer's mark
- WAU = AUDI AG
2 — Space
3 — Two-position type designation
- 8E = AUDI A4 Sedan/Estate
- 8H = Convertible
4 - Another gap
5 — Year of issue
- Y = 2000
- 1 = 2001
- 2 = 2002
- 3 = 2003
- 4 = 2004 etc.
6 - Place of manufacture
7 - Current issue
The nameplate (A) is located under the cover of the water collection compartment. The vehicle identification number is stamped on the rear wall of the engine compartment (B).

Nameplate under the water collection compartment cover (A) and vehicle identification number on the rear wall of the engine compartment (B).

Sticker with vehicle data.
The vehicle data sticker is located in the spare wheel well or on the bottom of the luggage compartment. It contains the following data:
- 1 - Vehicle identification number
- 2 — Type designation/production number
- 3 - Vehicle type
- 4 — Engine power/emission standards/gearbox
- 5 — Engine and gearbox designations
- 6 — Paint coating number/interior equipment designation
- 7 — Designations of additional equipment
- 8 — Empty weight/fuel consumption/CO₂ emissions
Warning: The specified data is located in the vehicle service book.

Gearbox designation.
Arrow 1 – gearbox designation "ENN" and production date "15.11.2000"
Arrow 2 – gearbox designation "012" and serial number "301103H"
(Content source: the specified website: AudiManual)
