What is the difference between Audi A2 TDI and TDIe engines?

I am considering buying an Audi A2 and have noticed there are two different Diesel engines available - the TDI and TDIe. Could someone please explain the main differences between these two engines and which one would be better for long-term use?

The main differences between the Audi A2 TDI and TDIe engines are fuel efficiency, power output, and emissions. The TDIe engine is more fuel-efficient and emits less CO2, making it a better option for environmentally conscious drivers. However, if you prioritize power, the TDI engine has a higher output and may be a better choice for you.

Both the Audi A2 TDI and TDIe engines have their advantages. The TDI engine may be more suitable for long-distance travel as it has a larger fuel tank, while the TDIe engine is better for city driving due to its lower emissions and fuel efficiency.

In terms of maintenance and reliability, both engines are generally considered to be solid choices. However, the TDIe engine has a more advanced and efficient design, which may lead to lower long-term maintenance costs.