Engine Alfa Romeo 939A5000

The 2.2-liter Alfa Romeo 939A5000 or 159 2.2 JTS engine was produced from 2005 to 2010 and was installed on a number of well-known models of the concern such as 159, Brera and the similar Spider. In fact, this power unit was a modification of the Opel Z22YH motor with phase regulators.

The JTS-engine series: 937A1000, 939A5000, 939A000.


Production years 2005-2010
Displacement, cc 2198
Fuel system direct injection
Power output, hp 185
Torque output, Nm 230
Cylinder block cast iron R4
Block head aluminum 16v
Cylinder bore, mm 86
Piston stroke, mm 94.6
Compression ratio 11.3
Features DOHC
Hydraulic lifters yes
Timing drive chain
Phase regulator on both shafts
Turbocharging no
Recommended engine oil 5W-40
Engine oil capacity, liter 5.4
Fuel type petrol
Euro standards EURO 4
Fuel consumption, L/100 km (for Alfa Romeo 159 2008)
— city
— highway
— combined
Engine lifespan, km ~220 000
Weight, kg 155

The engine was installed on:

  • Alfa Romeo 159 (Type 939) in 2005 – 2009;
  • Alfa Romeo Brera I (Type 939) in 2005 – 2009;
  • Alfa Romeo Spider VI (Type 939) in 2006 – 2010.

Disadvantages of the Alfa Romeo 939A5000 engine

  • First of all, this motor suffers from accelerated carbon deposits on the valves;
  • The injection pump does not last long, if it fails, the engine does not spin above 3000 rpm;
  • The timing chain and especially its tensioner are distinguished by a rather modest resource;
  • When replacing, do not forget about a separate chain for the water pump and balancer shaft;
  • A lot of trouble delivers the crankcase ventilation system and it is better to clean it more often.

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