Alfa Romeo2004–2010Technical specifications

147 1.9 JTDM 16V: Technical specifications

Workshop data for the 1.9-litre diesel (engine code 937A5.000). Covers engine, fluids, brakes, service, torques and air conditioning: the figures to check before a job or a parts order.

Common faults & fixes

Summary

Match the engine code (937A5.000) to the vehicle before ordering parts or applying these figures.

Vehicle specifications

Overview

Make: Alfa Romeo
Model: 147
Years: 2004–2010
Fuel: Diesel
Engine code: 937A5.000

Performance & efficiency

Power: 110 kW (150 hp)
Engine size: 1,910 cc
Cylinders: 4 · DOHC
Compression ratio: 18.0:1
Fuel system: Bosch

Fluids & capacities

Engine oil (with the filter): 4.5 litres

All 97 specifications below

Engine & identification

Vehicle identification

No. of cylinders Type	4/DOHC
Capacity cc	1910
Compression ratio :1	18,0
Fuel system Make	Bosch
Fuel system Type	EDC 16C8

Injection system

Air metering Type	Mass
Fuel/injection pump assembly Make	Bosch
Pump type	Common rail
Injector nozzle Make	Bosch

Injection sequence

The injection sequence for the Alfa Romeo 147 1.9 JTDM 16V (2004–2010) is 1-3-4-2.

Injection sequence	1-3-4-2

Valve clearances

Valve clearances on the Alfa Romeo 147 1.9 JTDM 16V (2004–2010) are hydraulic — they self-adjust, so no manual clearance figure applies.

Valve clearance - INLET mm	Hydraulic
Valve clearance - EXHAUST mm	Hydraulic

Engine oil & fluids

Engine oil

The Alfa Romeo 147 1.9 JTDM 16V (2004–2010) takes 4.5 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

Lubricants and capacities — complete reference
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	4.5
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	0.52
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 JTDM 16V (2004–2010) 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

Battery

The Alfa Romeo 147 1.9 JTDM 16V (2004–2010) uses a 12 V, 60 Ah battery.

Battery V/RC(Ah)	12 (60)

Tuning and emissions

Idle speed rpm	850±20
Oil temperature °C	80
Maximum time at governed speed secs	1,0
Test mode A/B	B
Probe type 1/2	1
Smoke opacity - EU limit m-1 (%)	3,00 (73)
Smoke opacity - homologation value m-1 (%)	2,80 (70)

Starting and charging

Alternator output A/V/rpm	55/14/-

Service checks and adjustments

Oil pressure bar/rpm	2,5-3,0/4000
Radiator cap bar	0,98
Thermostat opens °C	86-90

Tightening torques

Cylinder head bolt torque

The cylinder head bolts on the Alfa Romeo 147 1.9 JTDM 16V (2004–2010) 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
Cylinder head instructions	—
Main bearings Renew bolts/nuts	No
Main bearings Stage 1	25 Nm
Main bearings Stage 2	100°
Big end bearings Renew bolts/nuts	No
Big end bearings Stage 1	25 Nm
Big end bearings Stage 2	60°
Sump bolts	—
Sump bolts
Sump drain bolt	50±5 Nm
Flywheel/driveplate	160±16 Nm/-
Clutch pressure plate	28±3 Nm
Crankshaft pulley/damper centre bolt	340±17 Nm
Camshaft sprocket/gear	120±12 Nm
Camshaft carrier/cap	16 Nm
Camshaft/rocker cover	25±2 Nm
Inlet manifold to cylinder head	25±2 Nm
Exhaust manifold to cylinder head	28±5 Nm
Water pump	25±2 Nm
Injector/clamp	25±2 Nm
Injector pipe unions	23±1 Nm
Fuel/injection pump sprocket/gear	50±5 Nm
Fuel/injection pump mounting	25±2 Nm
Glow plugs	—
Camshaft position (CMP) sensor	9 Nm
Engine coolant temperature (ECT) sensor	19±2 Nm
Engine oil pressure switch	23±3 Nm
Chassis tightening torques
Front hub	71±3 Nm+62°
Rear hub	320±16 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 JTDM 16V?

The injection sequence for the Alfa Romeo 147 1.9 JTDM 16V (2004–2010) is 1-3-4-2.

How much oil does the Alfa Romeo 147 1.9 JTDM 16V take?

The Alfa Romeo 147 1.9 JTDM 16V (2004–2010) takes 4.5 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 JTDM 16V?

Valve clearances on the Alfa Romeo 147 1.9 JTDM 16V (2004–2010) are hydraulic — they self-adjust, so no manual clearance figure applies.

What is the cylinder head torque for the Alfa Romeo 147 1.9 JTDM 16V?

The cylinder head bolts on the Alfa Romeo 147 1.9 JTDM 16V (2004–2010) 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 JTDM 16V?

Brake discs on the Alfa Romeo 147 1.9 JTDM 16V (2004–2010) 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.

What battery does the Alfa Romeo 147 1.9 JTDM 16V use?

The Alfa Romeo 147 1.9 JTDM 16V (2004–2010) uses a 12 V, 60 Ah battery.