Audi has announced the introduction of a new 1.8L engine for the A5 family, which is getting a refresh for the 2012 model year. The A5 gets a new base engine that is an all-new 1.8L TFSI four-cylinder that generates a modest 170 horsepower and 236 lb-ft of torque.
Although the 1.8L may only put out 170 horsepower, it gets 41 mpg and reaches 0-62 mph in 7.9 seconds. How does it get over 40 mpg but still manage to generate power without the help of a hybrid system or diesel fuel? The 1.8L uses direct-injection and a turbocharger to make it 21 percent more fuel efficient than the outgoing engine.
The 1.8L also uses a new fully electronic coolant regulation system that replaces the traditional water pump. Two fast-switching, rotating cores, which are consolidated in a module and driven by an electric motor via a screw drive, control the flow of coolant. The system makes cold starts easier since it keeps the coolant in the crankcase longer than normal.
Audi hasn’t confirmed if the 1.8L will be offered in the U.S. Currently our base engine in the A5 is the 211-hp 2.0L.