Engine & identification
Vehicle identification
| No. of cylinders Type | 4/OHC |
|---|---|
| Capacity (Fiscal) cc | 1995 |
| Compression ratio :1 | 9,7-10,4 |
| Suitable for unleaded petrol | Yes |
| Minimum octane rating RON | 95 |
| Ignition system Make | Marelli |
| Ignition system Type | 1B4BA0 |
| Ignition system Description | Map-DI |
| Trigger location | Cam/Crankshaft |
| Fuel system Make | Marelli |
| Fuel system Type | 1B4BA0 |
| Fuel system Description | MFI-s(d) |
| Air metering Type | Mass/MAP |
| Combined ignition and fuel ECM | Yes |
| Diagnostic socket | Yes |
Ignition system
| Ignition coil Make | Borgwarner |
|---|---|
| Ignition coil Type | 50050430 |
| Ignition coil supply voltage + with ballast V | 12,0 |
Firing order
The firing order for the Alfa Romeo Stelvio 2.0 Q4 (2017–2025) is 1-3-4-2.
| Firing order | 1-3-4-2 |
|---|
Valve clearances
Valve clearances on the Alfa Romeo Stelvio 2.0 Q4 (2017–2025) 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 Stelvio 2.0 Q4 (2017–2025) takes 5.2 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 8.8 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
| 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 | SN/C2 |
| Engine with filter(s) litres | 5.2 |
| Other lubricants and capacities | |
| Automatic transmission fluid Type | Tutela Transmission AS8 |
| Automatic transmission fluid classification | Fiat 9.55550-AV5 |
| Automatic transmission (drain & refill) litres | 9.3 |
| 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 | 1.1 |
| 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 | 8.8 |
| 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 |
Brakes & wear limits
Brake disc thickness
Brake discs on the Alfa Romeo Stelvio 2.0 Q4 (2017–2025) 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 Front | 25,5 mm |
|---|---|
| Minimum disc thickness after refacing - ventilated Front | 26,4 mm |
| Minimum disc thickness for replacement - ventilated Rear | 20 mm |
| Minimum disc thickness after refacing - ventilated Rear | 20,6 mm |
Service & electrical
Tuning and emissions
| Ignition advance checks °Engine/rpm | ECM Controlled |
|---|---|
| Idle speed rpm | 750±50 Not adjustable |
| Oil temperature °C | 80 |
| CO level at idle speed - tailpipe Vol. % CO | 0,2 Max Not adjustable |
| HC level at idle speed ppm | 100 |
| CO2 level at idle speed Vol. % CO2 | 14,5-16 |
| O2 level at idle speed Vol. % O2 | 0,1-0,5 |
Starting and charging
| Battery V/RC(Ah) | 12 |
|---|
Service checks and adjustments
| Radiator cap bar | 1,40 |
|---|
Fuel system
| Fuel feed/lift pump delivery pressure bar | 4,0-5,0 |
|---|---|
| Fuel main pump delivery pressure bar | 40-200 |
Spark plugs
| Spark plugs Original equipment | NGK |
|---|---|
| Spark plug Type | ILZKR7G7G |
| Electrode gap mm | 0,60-0,65 |
Tightening torques
| Cylinder head instructions | — |
|---|---|
| Cylinder head | |
| Renew bolts | Yes |
| Other engine tightening torques | |
| Main bearings Stage 1 | — |
| Main bearings | |
| Big end bearings Renew bolts/nuts | Yes |
| Big end bearings Stage 1 | 20 Nm |
| Big end bearings Stage 2 | 100°±10° |
| Oil pump to cylinder block | 1)5 Nm 2)9±1 Nm |
| Sump bolts | — |
| View more information | — |
| Assemble components within 20 minutes. | |
| Sump drain bolt | 20±2 Nm |
| Flywheel/driveplate | -/110±5 |
| Crankshaft pulley/damper centre bolt | 50±2 Nm+80° |
| Crankshaft pulley/damper centre bolt | |
| Camshaft sprocket/gear | 10 Nm+65° |
| Camshaft carrier/cap | 10±1 Nm |
| Camshaft/rocker cover | 10±1 Nm |
| Inlet manifold to cylinder head | 11±1 Nm |
| Exhaust manifold to cylinder head | 20±2 Nm |
| Exhaust downpipe to manifold | 24±2 Nm |
| Water pump | 26±2 Nm |
| Spark plugs | 19±2 Nm |
| Fuel rail | 23±2 Nm |
| Crankshaft position (CKP) sensor/engine speed (RPM) sensor | 10±1 Nm |
| Camshaft position (CMP) sensor | 9±1 Nm |
| Lambda sensor (Oxygen) | 45±5 Nm |
| Knock sensor (KS) | 28±3 Nm |
| Engine oil pressure switch | 26±2 Nm |
| Oil filter | 16±2 Nm |
| Chassis tightening torques | |
| Front hub | 1)71±3 Nm 2)47°±2° |
| Front hub - wheel bearing housing bolts | 100±5 Nm |
| Rear hub | 1)71±3 Nm 2)47°±2° |
| Rear hub - wheel bearing housing bolts | 100±5 Nm |
| Steering wheel | 50±5 Nm |
| Steering rack/box mounting | 110±5 Nm |
| Steering track rod end | 75±7 Nm |
| Brake disc to hub Front | 7±1 Nm |
| Brake caliper/carrier to hub Front | 105±5 Nm |
| Brake disc to hub Rear | 7±1 Nm |
| Brake caliper to carrier Rear | 28±2 Nm |
| Brake caliper/carrier to hub Rear | 105±5 Nm |
| Back plate to hub Rear | 9±2 Nm |
| ABS sensor Front | 9±2 Nm |
| ABS sensor Rear | 9±2 Nm |
| Road wheels | 120±12 Nm |
Air conditioning
| No. of AC service connectors | 2 |
|---|---|
| Air conditioning restrictor type | Expansion valve |
| Compressor clutch/magnetic coupling | Yes |
| Compressor variable displacement solenoid | Yes |
| Air conditioning refrigerant Type | R1234yf |
| Air conditioning refrigerant quantity grams | 535±20 |
| Air conditioning oil group | PAG |
| Air conditioning oil Type | Dens Oil 12 |
| Air conditioning oil quantity cm³ | 130 |
| Air conditioning oil viscosity ISO | 46 |
Frequently asked questions
What is the firing order of the Alfa Romeo Stelvio 2.0 Q4?
The firing order for the Alfa Romeo Stelvio 2.0 Q4 (2017–2025) is 1-3-4-2.
How much oil does the Alfa Romeo Stelvio 2.0 Q4 take?
The Alfa Romeo Stelvio 2.0 Q4 (2017–2025) takes 5.2 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 2.0 Q4?
Valve clearances on the Alfa Romeo Stelvio 2.0 Q4 (2017–2025) are hydraulic — they self-adjust, so no manual clearance figure applies.
What is the minimum brake disc thickness for the Alfa Romeo Stelvio 2.0 Q4?
Brake discs on the Alfa Romeo Stelvio 2.0 Q4 (2017–2025) 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.