Engine & fuel system
3 documented faults — symptoms, causes and workshop fixes.
Engine malfunction indicator lamp (MIL) illuminated. Possible trouble codes stored: P0325, P181D
Overview
- Affects
- All models with 0.9 TwinAir engine.
- Fault codes
P0325- Remedy
- Software update
Symptoms
Erratic stop-start system operation. Stop-start system not working.
Cause
Engine control module (ECM) 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 engine control module (ECM) with upgraded software.
Data: Motorwise Workshop. Bulletin 5.
Central locking not operating when using remote control
Overview
- Affects
- All models.
- Remedy
- Software update
Symptoms
Irregular operation of lane departure warning system. Irregular operation of stop-start system.
Cause
Multifunction 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 multifunction 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 6.
Engine will not start
Overview
- Affects
- All models with 199B6.000/199B7.000 engine codes.
- Fault codes
P0016P0196- Remedy
- Software update
Symptoms
Engine malfunction indicator lamp (MIL) illuminated. Possible trouble codes stored: P0016, P0196.
Cause
Engine control module (ECM) 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 ECM with upgraded software. Note: To carry out an effective repair a software upgrade will be required - refer to manufacturer.
Data: Motorwise Workshop. Bulletin 8.
Electrical & ignition
1 documented fault — symptoms, causes and workshop fixes.
Seat belt warning buzzer and warning lamp on when seat belt fastened
Overview
- Affects
- All models.
Cause
Front seat belt buckle wiring harness damaged due to trapping in seat height adjustment linkage.
Repair
- Repair or replace front seat belt buckle wiring harness as necessary.
- Protect wiring harness with convoluted plastic conduit.
Data: Motorwise Workshop. Bulletin 1.
Brakes
1 documented fault — symptoms, causes and workshop fixes.
Brake pedal sticking or not returning causing overheating of brake discs
Symptoms
Brakes binding.
Cause
Unsatisfactory design of brake pedal assembly.
Repair
- Fit modified brake pedal assembly.
Parts4 parts
| Part | Part number | Qty |
|---|---|---|
| Brake pedal | 77366184 | 1 |
| Brake pedal pivot pin | 71747803 | 1 |
| Brake pedal pivot bush | 71740397 | 2 |
| Clip | 71747693 | 1 |
Data: Motorwise Workshop. Bulletin 3.
Steering
1 documented fault — symptoms, causes and workshop fixes.
Multifunction steering wheel controls intermittent operation or not working
Cause
Multifunction steering wheel control button assemblies faulty.
Repair
- Fit new multifunction steering wheel control button assemblies.
Data: Motorwise Workshop. Bulletin 2.
Air conditioning & heating
1 documented fault — symptoms, causes and workshop fixes.
Excessive vibration through vehicle when stationary with engine idling
Overview
- Affects
- All Euro VI emission level models with 0.9 petrol engine, stop-start system and manual transmission, VIN →X070840.
- Remedy
- Software update
Symptoms
Erratic idle when air conditioning (AC) operating.
Cause
Engine control module (ECM) 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 engine control module (ECM) with upgraded software. Note: To carry out an effective repair a software upgrade will be required - refer to manufacturer.
Data: Motorwise Workshop. Bulletin 7.
Wipers & visibility
1 documented fault — symptoms, causes and workshop fixes.
Windscreen wiper blade not clearing windscreen efficiently
Cause
Unsatisfactory design of windscreen wiper arm.
Repair
- Fit new driver's side windscreen wiper arm.
Parts2 parts
| Part | Part number | Qty |
|---|---|---|
| Windscreen wiper arm (LHD) | 50521548 | 1 |
| Windscreen wiper arm (RHD) | 50521549 | 1 |
Data: Motorwise Workshop. Bulletin 4.
Other
2 documented faults — symptoms, causes and workshop fixes.
Poor performance or failure of AC system
Overview
- Affects
- All models with air conditioning (AC), VIN →1134577.
- Remedy
- Fit modified part
- Parts
- 3 parts
Cause
Refrigerant leak from AC pipe seal rings.
Repair
- Carry out electrical, mechanical and component tests (as applicable) to eliminate any other possible cause(s).
- If no fault(s) found: Fit modified AC pipe seal rings. Recharge AC system with correct quantity of refrigerant.
Parts3 parts
| Part | Part number | Qty |
|---|---|---|
| Seal ring | 10877887 | 1 |
| Seal ring | 10877980 | 2 |
| Seal ring | 10878180 | 1 |
Data: Motorwise Workshop. Bulletin 9.
Poor performance or failure of AC system
Overview
- Affects
- All models with 0.9/1.3/1.4 engines and air conditioning (AC).
- Remedy
- Fit modified part
- Parts
- 2 parts
Cause
Failure of AC condenser.
Repair
- Carry out electrical, mechanical and component tests (as applicable) to eliminate any other possible cause(s).
- If no fault(s) found: Fit modified AC condenser Recharge AC system with correct quantity of refrigerant.
Parts2 parts
| Part | Part number | Qty |
|---|---|---|
| AC condenser (petrol models with non-turbocharged engines) | 50526514 | 1 |
| AC condenser (except petrol models with non-turbocharged engines) | 50526515 | 1 |
Data: Motorwise Workshop. Bulletin 10.
Glossary
Technical terms used in this guide.
- MIL
- Malfunction indicator lamp — the engine warning light on the dashboard
- ECM
- Engine control module — the electronic unit that manages the engine
- VIN
- Vehicle identification number — 17 characters, found at the base of the windscreen and on the V5C logbook
- 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
- LHD
- Left-hand drive — steering wheel on the left
- RHD
- Right-hand drive — steering wheel on the right
- Control Module
- A control unit for one of the vehicle's systems (engine, gearbox, brakes, body, and so on)
- Multifunction Control Module
- The control module that runs shared electrical functions (lights, wipers, locking, and so on)
- Refrigerant
- The gas/liquid that carries heat in the air-conditioning system
- Re-Program
- Update the software on a control module using the manufacturer's diagnostic tool
- Stop-Start
- The system that cuts the engine at idle and restarts it when you pull away
- Wiring Harness
- The bundled cables that carry power and signals around the vehicle
Frequently asked questions
What are the common faults with the Alfa Romeo MiTo 0.9 TwinAir Turbo?
This guide contains 10 workshop bulletins for the Alfa Romeo MiTo 0.9 TwinAir Turbo. Of these, three concern the engine and fuel system and one the electrical and ignition. Symptoms, causes, repair steps and part numbers are shown where supplied.
Does every Alfa Romeo MiTo 0.9 TwinAir Turbo 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 MiTo 0.9 TwinAir Turbo faults myself?
Many of them. The documented symptoms can be seen, heard or felt during a test drive.