Alfa Romeo2017–2018Technical specifications

Stelvio 2.2 Q4: Technical specifications

Workshop data for the 2.2-litre diesel (engine code 55271838). Covers engine, fluids, brakes, service, torques and air conditioning: the figures to check before a job or a parts order.

Summary

Match the engine code (55271838) to the vehicle before ordering parts or applying these figures.

Vehicle specifications

Overview

Make
Alfa Romeo
Model
Stelvio
Years
2017–2018
Fuel
Diesel
Engine code
55271838

Performance & efficiency

Power
154 kW (209 hp)
Engine size
2,143 cc
Cylinders
4 · DOHC
Fuel system
Bosch

Fluids & capacities

Engine oil (with the filter)
4.4 litres
All 103 specifications below

Engine & identification

Vehicle identification

No. of cylinders Type4/DOHC
Capacity cc2143
Compression ratio :115,1-15,9
Fuel system MakeBosch
Fuel system TypeEDC 17C69

Injection system

Air metering TypeMass
Pump typeCommon rail
Fuel feed/lift pump delivery pressure bar4,0-6,0
Engine coolant temperature (ECT) sensor Ohm/°C309/80
Injector Ohm0,3-0,4

Injection sequence

The injection sequence for the Alfa Romeo Stelvio 2.2 Q4 (2017–2018) is 1-3-4-2.

Injection sequence1-3-4-2

Valve clearances

Valve clearances on the Alfa Romeo Stelvio 2.2 Q4 (2017–2018) are hydraulic — they self-adjust, so no manual clearance figure applies.

Valve clearance - INLET mmHydraulic
Valve clearance - EXHAUST mmHydraulic

Engine oil & fluids

Engine oil

The Alfa Romeo Stelvio 2.2 Q4 (2017–2018) takes 4.4 litres of engine oil with the filter.

See the reference table for the complete engine oil entries and their conditions.

Transfer box

See the reference table for the complete transfer box entries and their conditions.

Coolant

The listed total cooling-system capacity is 8.0 litres.

Cooling system must be filled using vacuum filling equipment.

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 0W-30 Synthetic
Engine oil classification OEM FPW 9.55535/02
Engine oil classification API/ACEA /C2
Engine with filter(s) litres 4.4
Other lubricants and capacities
Automatic transmission fluid Type Tutela Transmission AS8
Automatic transmission fluid classification Fiat 9.55550-AV5
Automatic transmission (drain & refill) litres 9.1
Checking ATF level
Differential oil grade - front SAE Shell TF0951B Synthetic
Differential oil classification - front GL-5
Differential front/AT litres 0.45-0.50
Differential oil grade - rear SAE 75W-85 Synthetic
Differential oil classification - rear Fiat 9.55550-DA9
Differential rear litres —
Transfer box oil grade SAE 75W Synthetic
Transfer box oil classification Fiat 9.55550-DA11
Transfer box litres 0.7
Transfer box oil
Coolant Type Paraflu up
Coolant Colour Red
Cooling system - total capacity litres 8.0
Cooling system must be filled using vacuum filling equipment.
Brake fluid Type DOT 4
Brake fluid classification Fiat 9.55597
Brake fluid litres 0.9
Selective catalytic reduction (SCR) additive Type AdBlue (AUS 32)
Selective catalytic reduction (SCR) additive litres 16.1

Brakes & wear limits

Brake disc thickness

Brake discs on the Alfa Romeo Stelvio 2.2 Q4 (2017–2018) are replaced at a minimum thickness of 25,5 mm (ventilated) or 26,4 mm (ventilated) front and 20 mm (ventilated) or 20,6 mm (ventilated) rear.

Minimum disc thickness for replacement - ventilated Front25,5 mm
Minimum disc thickness after refacing - ventilated Front26,4 mm
Minimum disc thickness for replacement - ventilated Rear20 mm
Minimum disc thickness after refacing - ventilated Rear20,6 mm

Service & electrical

Battery

The Alfa Romeo Stelvio 2.2 Q4 (2017–2018) uses a 12 V, 80 Ah battery.

Battery V/RC(Ah)12 (80)

Glow plugs

Glow plugs for the Alfa Romeo Stelvio 2.2 Q4 (2017–2018): Original equipment 55258724, Beru 4014427172635, Bosch 0 250 623 004, Champion CH930 and NGK 0Z503 7Z K85SA.

Glow plug - part no. Original equipment55258724
Glow plug - part no. Beru4014427172635
Glow plug - part no. Bosch0 250 623 004
Glow plug - part no. ChampionCH930
Glow plug - part no. NGK0Z503 7Z K85SA

Service checks and adjustments

Radiator cap bar1,40
Thermostat opens °C94-98

Tightening torques

Cylinder head bolt torque

The cylinder head bolts on the Alfa Romeo Stelvio 2.2 Q4 (2017–2018) are tightened in 3 stages: 90°, then 90°, then a final 90°.

Cylinder head
Renew boltsYes
Tighten51±2 Nm
Tighten90°
Tighten90°
Tighten90°
Cylinder head instructions—
Other engine tightening torques
Main bearings Renew bolts/nutsNo
Main bearings Stage 1—
View more information—
Main bearings
Big end bearings Renew bolts/nutsNo
Big end bearings Stage 11)10 Nm 2)20±1 Nm
Big end bearings Stage 225±1 Nm+60°
Sump bolts—
Sump bolts
Sump drain bolt20±2 Nm
Flywheel/driveplate-/150±15 Nm
Crankshaft pulley/damper centre bolt340±17 Nm
Crankshaft pulley/damper bolts30±3 Nm
Camshaft sprocket/gear30±1 Nm+50°
Camshaft/rocker cover26±2 Nm
Inlet manifold to cylinder head25±3 Nm
Exhaust manifold to cylinder head20±2 Nm
Exhaust downpipe to manifold24±3 Nm
Water pump26±2 Nm
Injector/clamp25±3 Nm
If new injectors are fitted, use diagnostic equipment to check if they are recognised by engine control module (ECM).
Injector pipe unions32±2 Nm
Fuel/injection pump sprocket/gear80±8 Nm
Fuel/injection pump mounting—
Fuel/injection pump mounting
Glow plugs18±2 Nm
Crankshaft position (CKP) sensor/engine speed (RPM) sensor9 Nm
Camshaft position (CMP) sensor9±1 Nm
Nitrogen oxide (NOx) sensor53±5 Nm
Engine oil pressure switch1)14±1 Nm 2)26±2 Nm
Oil filter30±3 Nm
Chassis tightening torques
Front hub1)71±3 Nm 2)47°±2°
Front hub - wheel bearing housing bolts100±5 Nm
Rear hub1)71±3 Nm 2)47°±2°
Rear hub - wheel bearing housing bolts100±5 Nm
Steering wheel50±5 Nm
Steering rack/box mounting110±5 Nm
Steering track rod end75±7 Nm
Brake disc to hub Front7±1 Nm
Brake caliper/carrier to hub Front105±5 Nm
Brake disc to hub Rear7±1 Nm
Brake caliper to carrier Rear28±2 Nm
Brake caliper/carrier to hub Rear105±5 Nm
Back plate to hub Rear9±2 Nm
ABS sensor Front9±2 Nm
ABS sensor Rear9±2 Nm
Road wheels120±12 Nm

Air conditioning

No. of AC service connectors2
Air conditioning restrictor typeExpansion valve
Compressor clutch/magnetic couplingYes
Compressor variable displacement solenoidYes
Air conditioning refrigerant TypeR1234yf
Air conditioning refrigerant quantity grams535±20
Air conditioning oil groupPAG
Air conditioning oil TypeDens Oil 12
Air conditioning oil quantity cm³130
Air conditioning oil viscosity ISO46

Frequently asked questions

What is the injection sequence of the Alfa Romeo Stelvio 2.2 Q4?

The injection sequence for the Alfa Romeo Stelvio 2.2 Q4 (2017–2018) is 1-3-4-2.

What glow plugs does the Alfa Romeo Stelvio 2.2 Q4 use?

Glow plugs for the Alfa Romeo Stelvio 2.2 Q4 (2017–2018): Original equipment 55258724, Beru 4014427172635, Bosch 0 250 623 004, Champion CH930 and NGK 0Z503 7Z K85SA.

How much oil does the Alfa Romeo Stelvio 2.2 Q4 take?

The Alfa Romeo Stelvio 2.2 Q4 (2017–2018) 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 Stelvio 2.2 Q4?

Valve clearances on the Alfa Romeo Stelvio 2.2 Q4 (2017–2018) are hydraulic — they self-adjust, so no manual clearance figure applies.

What is the cylinder head torque for the Alfa Romeo Stelvio 2.2 Q4?

The cylinder head bolts on the Alfa Romeo Stelvio 2.2 Q4 (2017–2018) are tightened in 3 stages: 90°, then 90°, then a final 90°.

What is the minimum brake disc thickness for the Alfa Romeo Stelvio 2.2 Q4?

Brake discs on the Alfa Romeo Stelvio 2.2 Q4 (2017–2018) are replaced at a minimum thickness of 25,5 mm (ventilated) or 26,4 mm (ventilated) front and 20 mm (ventilated) or 20,6 mm (ventilated) rear.

More on the Stelvio