Engine & fuel system
1 documented fault — symptoms, causes and workshop fixes.
Incorrect fuel gauge reading
Multifunction control module software fault. Fix: re-program with updated software.
Overview
- Affects
- All models.
- Remedy
- Software update
Symptoms
Door mirrors intermittent operation or not working. Heated rear window intermittent operation or not working. Incorrect fuel gauge reading immediately after re-fuelling vehicle.
Repair steps
- Carry out electrical, mechanical and component tests (as applicable) to eliminate any other possible cause(s).
- If no fault(s) found: Re-program multifunction control module with upgraded software.
- Erase any stored trouble codes.
Data: Motorwise Workshop. Bulletin 2.
Air conditioning & heating
1 documented fault — symptoms, causes and workshop fixes.
AC/heater blower motor not operating after stop-start system operation
Overview
- Affects
- All models with air conditioning (AC), 2020.
- Remedy
- Software update
Symptoms
Trouble code stored in AC control module fault memory: B10C8.
Cause
AC/heater control module software fault.
Repair
- Carry out electrical, mechanical and component tests (as applicable) to eliminate any other possible cause(s).
- If no fault(s) found: Re-program AC/heater control module with upgraded software. Note: To carry out an effective repair a software upgrade will be required - refer to manufacturer.
Data: Motorwise Workshop. Bulletin 3.
Body & trim
1 documented fault — symptoms, causes and workshop fixes.
Tailgate latch cover panel loose or adrift
Cause
Tailgate latch cover panel fixing clips missing Fig.1259474.1 .
Repair
- Fit new tailgate latch cover panel.
Parts1 part
| Part | Part number | Qty |
|---|---|---|
| Tailgate latch cover panel | 156130460 | 1 |
Data: Motorwise Workshop. Bulletin 1.
Glossary
Technical terms used in this guide.
- Trouble Codes
- Standardised fault codes stored by the engine control module, read with a diagnostic tool
- AC
- Air conditioning — the system that cools the cabin
- AC/Heater
- The heating and air-conditioning system
- Control Module
- A control unit for one of the vehicle's systems (engine, gearbox, brakes, body, and so on)
- Fault Memory
- The list of stored trouble codes in a control module
- Multifunction Control Module
- The control module that runs shared electrical functions (lights, wipers, locking, and so on)
- Re-Program
- Update the software on a control module using the manufacturer's diagnostic tool
- Trouble Code
- A standardised fault code stored by a control module, read with a diagnostic tool
Frequently asked questions
What are the common faults with the Alfa Romeo Stelvio 2.9 Quadrifoglio?
This guide contains three workshop bulletins for the Alfa Romeo Stelvio 2.9 Quadrifoglio. Of these, one concerns the engine and fuel system and one the air conditioning and heating. Symptoms, causes, repair steps and part numbers are shown where supplied.
Does every Alfa Romeo Stelvio 2.9 Quadrifoglio have these faults?
No. These are patterns documented across the model by workshops, not predictions for an individual vehicle. Where a fault applies only to certain vehicles or VIN ranges, that is listed with the fault.
Can I check for Alfa Romeo Stelvio 2.9 Quadrifoglio faults myself?
Many of them. The documented symptoms can be seen, heard or felt during a test drive.