Engine & identification
Vehicle identification
| No. of cylinders Type | 4/OHC |
|---|---|
| Capacity cc | 1910 |
| Compression ratio :1 | 18,5 |
| Fuel system Make | Bosch |
| Fuel system Type | EDC 15C |
Injection system
| Air metering Type | Mass |
|---|---|
| Fuel/injection pump assembly Make | Bosch |
| Pump type | Common rail |
| Fuel main pump delivery pressure bar | 150-1350 |
| Fuel feed/lift pump delivery pressure bar | 2,0-3,0 |
| Injector nozzle Make | Bosch |
Injection sequence
The injection sequence for the Alfa Romeo 147 1.9 JTD (2006–2010) is 1-3-4-2.
| Injection sequence | 1-3-4-2 |
|---|
Valve clearances
Valve clearances for the Alfa Romeo 147 1.9 JTD (2006–2010) are 0,25-0,35 mm inlet and 0,30-0,40 mm exhaust, measured cold.
| Valve clearance - INLET mm | 0,25-0,35 cold |
|---|---|
| Valve clearance - EXHAUST mm | 0,30-0,40 cold |
Engine oil & fluids
Engine oil
The Alfa Romeo 147 1.9 JTD (2006–2010) takes 4.4 litres of engine oil with the filter.
See the reference table for the complete engine oil entries and their conditions.
Manual gearbox
The manual gearbox has a listed capacity of 2.1 litres. The specified oil is SAE 75W-80 synthetic, with classification GL-5.
Coolant
The listed total cooling-system capacity is 7.2 litres.
See the reference table for the complete coolant entries and their conditions.
Grades, filling conditions and capacities
| Engine oil options | |
|---|---|
| Ambient temperature range | All temperatures |
| Engine oil grade SAE | 5W-40 Synthetic |
| Engine oil classification API/ACEA | CF/B3 |
| Ambient temperature range | -15°C➞ |
| Engine oil grade SAE | 10W-40 Synthetic |
| Engine oil classification API/ACEA | CD/B3 |
| Engine with filter(s) litres | 4.4 |
| Other lubricants and capacities | |
| Manual transmission oil grade SAE | 75W-80 Synthetic |
| Manual transmission oil classification | GL-5 |
| Manual transmission litres | 2.1 |
| Coolant Type | Paraflu 11 |
| Coolant Colour | Green Blue |
| Cooling system - total capacity litres | 7.2 |
| Brake fluid Type | DOT 4 |
| Brake fluid litres | 0.5 |
| Clutch fluid Type | DOT 4 |
| Power steering fluid Type | Dexron II |
| Power steering fluid litres | 1.2 |
Brakes & wear limits
Brake disc thickness
Brake discs on the Alfa Romeo 147 1.9 JTD (2006–2010) are replaced at a minimum thickness of 20,2 mm (ventilated) or 20,5 mm (ventilated) front and 9 mm or 9,35 mm rear.
| Minimum disc thickness for replacement - ventilated Front | 20,2 mm |
|---|---|
| Minimum disc thickness after refacing - ventilated Front | 20,5 mm |
| Minimum disc thickness for replacement Rear | 9 mm |
| Minimum disc thickness after refacing Rear | 9,35 mm |
Service & electrical
Tuning and emissions
| Idle speed rpm | 850±20 |
|---|
Starting and charging
| Battery V/RC(Ah) | 12 |
|---|
Service checks and adjustments
| Thermostat opens °C | 78-82 |
|---|
Tightening torques
Cylinder head bolt torque
The cylinder head bolts on the Alfa Romeo 147 1.9 JTD (2006–2010) are tightened in 4 stages: 65 Nm, then 90°, then 90°, then a final 90°.
| Cylinder head | |
|---|---|
| Renew bolts | Yes |
| Tighten | 65 Nm |
| Tighten | 90° |
| Tighten | 90° |
| Tighten | 90° |
| Other engine tightening torques | |
|---|---|
| Main bearings Renew bolts/nuts | No |
| Main bearings Stage 1 | 25±1 Nm |
| Main bearings Stage 2 | 100° |
| Big end bearings Renew bolts/nuts | No |
| Big end bearings Stage 1 | 25±1 Nm |
| Big end bearings Stage 2 | 60° |
| Oil pump to cylinder block | 9 Nm |
| Sump bolts | — |
| Wait 1 hour before filling engine with oil. | |
| Sump drain bolt | 20 Nm |
| Flywheel/driveplate | 160±16 Nm/- |
| Clutch pressure plate | 28±3 Nm |
| Crankshaft pulley/damper centre bolt | 240±12 Nm |
| Crankshaft pulley/damper bolts | 25 Nm |
| Camshaft sprocket/gear | 114±12 Nm |
| Camshaft carrier/cap | 15±1 Nm |
| Camshaft/rocker cover | 9±1 Nm |
| Inlet manifold to cylinder head | 25 Nm |
| Exhaust manifold to cylinder head | 24±2 Nm |
| Water pump | 24±2 Nm |
| Injector/clamp | 29±3 Nm |
| Injector pipe unions | — |
| Injector pipe unions | |
| Fuel/injection pump sprocket/gear | 50±5 Nm |
| Fuel/injection pump mounting | 26±2 Nm |
| Glow plugs | 15±1 Nm |
| Chassis tightening torques | |
| Front hub | 71±3 Nm+62° |
| Rear hub | 320±16 Nm |
| Steering wheel | 50 Nm |
| Steering rack/box mounting | 130±13 Nm |
| Steering track rod end | 36±3 Nm |
| Brake disc to hub Front | 12±2 Nm |
| Brake caliper to carrier Front | 52±6 Nm |
| Brake caliper/carrier to hub Front | 117±6 Nm |
| Brake disc to hub Rear | 12±2 Nm |
| Brake caliper to carrier Rear | 50 Nm |
| Brake caliper/carrier to hub Rear | 50±5 Nm |
| ABS sensor Front | 8±1 Nm |
| ABS sensor Rear | 8±1 Nm |
| Road wheels | 98 Nm Alu=120 Nm |
Air conditioning
| No. of AC service connectors | 2 |
|---|---|
| Air conditioning restrictor type | Expansion valve |
| Compressor clutch/magnetic coupling | Yes |
| Compressor variable displacement solenoid | No |
| Air conditioning refrigerant Type | R134a |
| Air conditioning refrigerant quantity grams | 550±25 |
| Air conditioning oil group | PAG |
| Air conditioning oil Type | SP10 |
| Air conditioning oil quantity cm³ | 135 |
| Air conditioning oil viscosity ISO | 46 |
Frequently asked questions
What is the injection sequence of the Alfa Romeo 147 1.9 JTD?
The injection sequence for the Alfa Romeo 147 1.9 JTD (2006–2010) is 1-3-4-2.
How much oil does the Alfa Romeo 147 1.9 JTD take?
The Alfa Romeo 147 1.9 JTD (2006–2010) takes 4.4 litres of engine oil with the filter. See the reference table for the complete engine oil entries and their conditions.
What are the valve clearances for the Alfa Romeo 147 1.9 JTD?
Valve clearances for the Alfa Romeo 147 1.9 JTD (2006–2010) are 0,25-0,35 mm inlet and 0,30-0,40 mm exhaust, measured cold.
What is the cylinder head torque for the Alfa Romeo 147 1.9 JTD?
The cylinder head bolts on the Alfa Romeo 147 1.9 JTD (2006–2010) are tightened in 4 stages: 65 Nm, then 90°, then 90°, then a final 90°.
What is the minimum brake disc thickness for the Alfa Romeo 147 1.9 JTD?
Brake discs on the Alfa Romeo 147 1.9 JTD (2006–2010) are replaced at a minimum thickness of 20,2 mm (ventilated) or 20,5 mm (ventilated) front and 9 mm or 9,35 mm rear.