937A5000 engine — Alfa Romeo 1.9 JTD (1.9L)
1.9L · 150 hp
Engine overview
Vehicles with this engine
Factory specifications
Values from the manufacturer documentation for this engine.
Engine (general)
| Engine code | 937 A5.000 |
| Capacity | 1910 cc |
| Idle speed | 850 ± 20 rpm |
| Oil pressure | 1.0 / 850 ± 20 4.0-4.5 / 4000 bar/rpm |
Engine (diesel)
| System (make and type) | Bosch EDC 15C |
| Injection pump (make and type) | Multijet Common Rail |
| Number of cylinders | 4 |
| Injector firing order | 1-3-4-2 |
| Maximum rail pressure | 1600 bar |
| Exhaust gas analysis | Euro 3: < 2.5\x0AEuro 4: < 1.5 m-1 |
Cooling system
| Cap pressure | 0.98 bar |
| Thermostat opens at | 80 ± 2 °C |
Electrical
| Battery | 60 Ah |
Capacities
| Engine sump, incl. filter | 4.2 l |
| Manual transmission | C530.6 |
| Gearbox refill | 3.2 l |
| Differential, 4WD rear | 1.25 l |
| Cooling system | 6.1 l |
| Power steering | 1.3 l |
| Air-conditioner refrigerant | 650 g |
| Air-conditioner compressor oil | 130 ml |
Torque settings
| Cylinder head bolts — Stage 1 | 20 Nm |
| Cylinder head bolts — Stage 2 | 45 Nm |
| Cylinder head bolts — Stage 3 | 90 ° |
| Cylinder head bolts — Stage 4 | 90 ° |
| Big-end bearing cap — Stage 1 | 25 Nm |
| Big-end bearing cap — Stage 2 | 60 ° |
| Glow plugs | 7 - 9 Nm |
| Front hub — Stage 1 | 67-74 Nm |
| Front hub — Stage 2 | 62 ° |
| Rear hub | 304 - 336 Nm |
| Wheel bolts | 88 - 108 Nm |
| Wheel bolts | 78 - 94 Nm |
Emissions
| Emission code | 70/220*2002/80A |
| Emission standard | Euro 3 (05/2004 ->) |
| CO2 average | 181 - 188 g/km |
| CO | 0.449 g/km |
| NOx | 0.357 g/km |
| HC NOx | 0.417 g/km |
| Particles | 0.046 g/km |
| Emission code | 70/220*2003/76B |
| Emission standard | Euro 4 (07/2004 ->) |
| CO2 average | 188 g/km |
| CO | 0.320 g/km |
| NOx | 0.215 g/km |
| HC NOx | 0.272 g/km |
| Particles | 0.024 g/km |
Workshop procedures for this engine
Step-by-step procedures from the workshop database.
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TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.
The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.
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The story behind TorqFix →Workshop data on this page last updated 22 Aug 2026.