The 1.6-liter Alfa Romeo AR32104 or 156 1.6 TS engine was produced from 2000 to 2010 and was installed on the two most popular concern models of its time under the indices 147 and 156. This engine did not have a VLIM intake geometry change system like the larger engines of the series.
The Twin Spark line includes: AR32104, AR32201, AR32301, AR32310.
Specifications
| Production years | 2000-2010 |
| Displacement, cc | 1598 |
| Fuel system | distributed injection |
| Power output, hp | 120 |
| Torque output, Nm | 146 |
| Cylinder block | cast iron R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 82 |
| Piston stroke, mm | 75.65 |
| Compression ratio | 10.3 |
| Features | DOHC |
| Hydraulic lifters | yes |
| Timing drive | belt |
| Phase regulator | VVT at the intake |
| Turbocharging | no |
| Recommended engine oil | 10W-40 |
| Engine oil capacity, liter | 4.4 |
| Fuel type | petrol |
| Euro standards | EURO 3 |
| Fuel consumption, L/100 km (for Alfa Romeo 156 2003) — city — highway — combined |
11.4 6.4 8.2 |
| Engine lifespan, km | ~250 000 |
| Weight, kg | 150 |
The engine was installed on:
- Alfa Romeo 147 (Type 937) in 2000 – 2010;
- Alfa Romeo 156 (Type 932) in 2000 – 2005.
Disadvantages of the Alfa Romeo AR32104 engine
- Due to the wrong selection of oil, the oil pump fails very quickly here;
- A drop in the performance of the oil pump reduces the resource of hydraulic lifters;
- Then, due to wedging of the hydraulic lifters, the camshaft cams wear out;
- On long runs, a strong oil burner is often found due to the fault of stuck rings;
- The weak points here include a phase regulator, an electronic throttle and a crankcase ventilation valve.
