What is the name of Volkswagen engine model csr?

It is a 2 1 1 naturally aspirated engine, CST is a 2 1 1 turbocharged engine, and csr engines are mainly assembled on Santana, Polo, LaVida and other models.

Extended data Naturally aspirated (English: Normally Aspirated) is a kind of automobile air intake, which is a form of atmospheric pressure forcing air into the combustion chamber without any supercharger.

Naturally aspirated type has no supercharger, that is to say, air simply passes through the air filter-throttle valve (commonly known as "throttle valve")-intake manifold to reach the "cylinder", and gasoline is directly injected into the intake manifold through the fuel injector (usually EFI, and now the latest technology is in-cylinder injection, which stands for Volkswagen Magotan).

Resources naturally aspirated engine _ Baidu Encyclopedia