Engine Volkswagen AKU

The company assembled the 1.7-liter VW AKU or 1.7 SDI diesel engine from 1997 to 2005 and installed it in a number of compact models, such as the Polo, Lupo and the similar Seat Arosa. The 2nd generation Caddy was equipped with a similar power unit, but under the AHB index.

The EA180 series also includes: 1Z, AFN, AHF, AHU, ALH, AVG, AKU, AEY.


Production years 1997-2005
Displacement, cc 1716
Fuel system direct injection
Power output, hp 60
Torque output, Nm 115
Cylinder block cast iron R4
Block head aluminum 8v
Cylinder bore, mm 79.5
Piston stroke, mm 86.4
Compression ratio 19.5
Features SOHC
Hydraulic lifters yes
Timing drive belt
Phase regulator no
Turbocharging no
Recommended engine oil 5W-40
Engine oil capacity, liter 4.7
Fuel type diesel
Euro standards EURO 2/3
Fuel consumption, L/100 km (for Volkswagen Polo 1999)
— city
— highway
— combined
Engine lifespan, km ~400 000

The engine was installed on:

  • Seat Arosa 1 (6H) in 1997 – 2003;
  • Volkswagen Polo 3 (6N) in 1997 – 2001;
  • Volkswagen Lupo 1 (6X) in 1998 – 2005.

Disadvantages of the VW AKU engine

  • This diesel engine is distinguished by a phlegmatic character, but great endurance and resource;
  • In winter, the engine may not start well due to the failure of the temperature sensor;
  • The culprit for traction failures and floating engine speeds is usually a clogged EGR valve;
  • One of the nozzles here is equipped with an injection sensor, which often breaks the winding;
  • The remaining problems of this unit are associated with malfunctions of the Bosch VP37 injection pump.

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