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.
JTS-engine family: 937A1000, 939A5000, 939A000.
Specifications
| 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 |
12.8 7.1 9.2 |
| 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.
Frequently asked questions about the Alfa Romeo 939A5000
How much power does the Alfa Romeo 939A5000 make?
The Alfa Romeo 939A5000 develops 185 hp and 230 Nm of torque.
How much oil does the Alfa Romeo 939A5000 take and which one?
Engine oil capacity: 5.4 liters. Recommended oil: 5W-40.
Does the Alfa Romeo 939A5000 have a timing belt or chain?
The Alfa Romeo 939A5000 uses a timing chain.
Is the Alfa Romeo 939A5000 turbocharged?
No, the Alfa Romeo 939A5000 is naturally aspirated.
Does the Alfa Romeo 939A5000 need valve clearance adjustment?
No, the Alfa Romeo 939A5000 has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the Alfa Romeo 939A5000 last?
The typical lifespan of the Alfa Romeo 939A5000 is ~220 000 km with proper maintenance.
What is the fuel consumption of the Alfa Romeo 939A5000?
Alfa Romeo 159 2008: city 12.8, highway 7.1, combined 9.2 L/100 km.
What cars was the Alfa Romeo 939A5000 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.
What are the common problems of the Alfa Romeo 939A5000?
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. All known problems.
