Engine Audi APG

The 1.8-liter Audi APG 20v gasoline engine was assembled by the company from 2000 to 2005 and installed on the restyled version of the first generation A3 and some Seat models. This power unit, in fact, was a slightly updated version of the AGN engine in terms of ecology.

The EA113-1.8 series includes: AGN, APG.


Production years 2000-2005
Displacement, cc 1781
Fuel system injector
Power output, hp 125
Torque output, Nm 170
Cylinder block cast iron R4
Block head aluminum 20v
Cylinder bore, mm 81
Piston stroke, mm 86.4
Compression ratio 10.3
Features DOHC
Hydraulic lifters yes
Timing drive chain & belt
Phase regulator no
Turbocharging no
Recommended engine oil 5W-30
Engine oil capacity, liter 4.5
Fuel type petrol
Euro standards EURO 3
Fuel consumption, L/100 km (for Audi A3 2002)
— city
— highway
— combined
Engine lifespan, km ~350 000

The engine was installed on:

  • Audi A3 1 (8L) in 2000 – 2003;
  • Seat Leon 1 (1M) in 2000 – 2005;
  • Seat Toledo 2 (1M) in 2000 – 2004.

Disadvantages of the Audi APG engine

  • A simple and reliable power unit rarely worries its owners.
  • The culprit of the floating engine speed is the contamination of the injectors or throttle.
  • Also, the vacuum regulator of the intake manifold flaps intermittently sticks.
  • In terms of electrics, lambda probes, a coolant temperature sensor, and a mass air flow sensor most often fail here.
  • A capricious crankcase ventilation system can throw a lot of problems.

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