Fig. Engine identification number location-2.8L VR6 (AAA) engine
Fig. Engine identification number location-gasoline engines
Fig. The engine family can also be determined from the vehicles under hood emissions label
Fig. A vacuum hose routing diagram can be located under the vehicles hood
The engine identification numbers are located as follows:
1.8L turbo engines: On the left side of the block above the oil filter
2.0L engines: Stamped into the front of the block near the crankcase breather or upper coolant hose
VR6 engine: Above the crankshaft pulley, at the top of the cylinder block
V6 engines: The flat surface of the block in front of the right cylinder head
The first two (or in the case of later engines, three) characters are the engine code and will be the most useful description of the engine when locating specifications or ordering parts.
Although AUDI and Volkswagen engines share many components, the code indicates differences in engine management systems, emissions specifications, compression ratios, power ratings and other details. The engine code also appears in large type on the model identification label in the luggage compartment.
For additional details, refer to the engine identification charts in this section.
As with the different vehicle platforms, sometimes headings and/or procedures in this guide are broken down by engine code. Make sure that you identify the engine in your vehicle, so you can refer to the appropriate procedure.