Alfa Romeo2016–2025

Giulia 2.0: Common faults & known problems

Common faults & known problems

10 known faults documented in workshop bulletins. Of these, six concern the engine and fuel system and one the electrical and ignition. Symptoms, causes, repair steps and part numbers are shown where supplied.

Technical specifications

Engine & fuel system

6 documented faults — symptoms, causes and workshop fixes.

Engine malfunction indicator lamp (MIL) illuminated

Overview

Affects
All models with 55273835 engine code, →02/10/17.
Fault codes
P0191U1008
Remedy
Software update

Symptoms

Hesitation/juddering when accelerating at approximately 45mph (70kph).

Cause

Engine control module (ECM) software fault.

Repair

  1. Carry out electrical, mechanical and component tests (as applicable) to eliminate any other possible cause(s).
  2. 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 1.

Engine coolant leak from turbocharger (TC) area

Overview

Affects
All models with 2.0 petrol engine, 12/09/16-12/01/17.
Remedy
Fit modified part
Parts
1 part

Cause

Unsatisfactory design of turbocharger (TC) coolant pipe O-ring.

Repair

  1. Pressure test cooling system.
  2. If coolant leak from area indicated: Fit modified O-ring on both turbocharger (TC) coolant pipes.
Parts1 part
Parts listed in the bulletin
PartPart numberQty
O-ring60006279342

Data: Motorwise Workshop. Bulletin 3.

Unable to program central locking key

Overview

Affects
All models with keyless entry/start system, 01/01/18-13/12/18.
Remedy
Software update

Cause

Keyless entry/start control module software fault.

Repair

  1. Carry out electrical, mechanical and component tests (as applicable) to eliminate any other possible cause(s).
  2. If no fault(s) found: Re-program keyless entry/start 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 4.

Intermittent operation of multifunction display

Overview

Affects
All models with 7 inch multifunction display incorporated in instrument panel.
Remedy
Software update

Symptoms

Erratic oil level readings in instrument panel.

Cause

Instrument panel software fault.

Repair

  1. Carry out electrical, mechanical and component tests (as applicable) to eliminate any other possible cause(s).
  2. If no fault(s) found: Re-program instrument panel with upgraded software. Note: To carry out an effective repair a software upgrade will be required - refer to manufacturer.

Data: Motorwise Workshop. Bulletin 5.

Engine malfunction indicator lamp (MIL) illuminated. Trouble code(s) stored: P0002, P026E, P1066, P26E4, P2B61, P2BC1, U1008

Overview

Affects
All Euro VI emission level models with 2.0 petrol engine and automatic transmission (AT).
Fault codes
P0002P1066U1008
Remedy
Software update

Symptoms

Intermittent starter motor operation.

Cause

Engine control module (ECM) software fault.

Repair

  1. Carry out electrical, mechanical and component tests (as applicable) to eliminate any other possible cause(s).
  2. 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.

Incorrect fuel gauge reading

Multifunction control module software fault. Fix: re-program with updated software.

Overview

Affects
All models, MY 2020→.
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

  1. Carry out electrical, mechanical and component tests (as applicable) to eliminate any other possible cause(s).
  2. If no fault(s) found: Re-program multifunction control module with upgraded software.
  3. Erase any stored trouble codes.

Data: Motorwise Workshop. Bulletin 10.

Electrical & ignition

1 documented fault — symptoms, causes and workshop fixes.

Headlamp level control inoperative on one or both headlamps

Unsatisfactory design of headlamp adjustment motor. Fix: fit a modified part.

Overview

Affects
All models with gas discharge headlamps, →16/11/17.
Remedy
Fit modified part

Repair steps

  1. Carry out electrical, mechanical and component tests (as applicable) to eliminate any other possible cause(s).
  2. If no fault(s) found: Fit modified headlamp(s) as required. Note: Disconnect battery before carrying out repair work on headlamp(s).
  3. Check and adjust headlamp alignment.

Parts

Parts listed in the bulletin
PartPart numberQty
LH headlamp (LHD)505572471
RH headlamp (LHD)505572441
RH headlamp (RHD)505572461
LH headlamp (RHD)505572491

Data: Motorwise Workshop. Bulletin 2.

Suspension & drivetrain

1 documented fault — symptoms, causes and workshop fixes.

Cruise control intermittently disengages by itself

Overview

Affects
All models with cruise control, →21/02/18.
Remedy
Software update

Symptoms

Cruise control not returning to preset vehicle speed.

Cause

Vibration through suspension due to winter tyres fitted.

Repair

  1. Carry out electrical, mechanical and component tests (as applicable) to eliminate any other possible cause(s).
  2. If no fault(s) found: Re-program ABS/ESP 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 8.

Clutch & gearbox

1 documented fault — symptoms, causes and workshop fixes.

Poor driveability

Overview

Affects
All Euro VI emission level models with 2.0 petrol engine and automatic transmission (AT).
Fault codes
P0471P0578
Remedy
Software update

Symptoms

Engine malfunction indicator lamp (MIL) illuminated. Trouble code(s) stored: P026E, P0471, P0578, P2BC1. Poor engine performance.

Cause

Engine control module (ECM) software fault.

Transmission control module (TCM) software fault.

Repair

  1. Carry out electrical, mechanical and component tests (as applicable) to eliminate any other possible cause(s).
  2. If no fault(s) found: Re-program engine control module (ECM) with upgraded software. Re-program transmission control module (TCM) with upgraded software. Note: To carry out an effective repair a software upgrade will be required - refer to manufacturer.

Data: Motorwise Workshop. Bulletin 6.

Air conditioning & heating

1 documented fault — symptoms, causes and workshop fixes.

No cold air flow through ventilation flaps when air conditioning (AC) operating

Overview

Affects
All models with air conditioning (AC), →29/11/17.
Remedy
Software update

Symptoms

Excessive difference in AC output temperature through different ventilation flaps.

Cause

AC control module software fault causing evaporator to freeze reducing or stopping air flow to vehicle interior.

Repair

  1. Carry out electrical, mechanical and component tests (as applicable) to eliminate any other possible cause(s).
  2. If no fault(s) found: Re-program AC 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 9.

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
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
ABS/ESP
Anti-lock braking and electronic stability programme — the system that stops the wheels locking and keeps the vehicle stable
TC
Turbocharger — the exhaust-driven compressor that boosts engine power
TCM
Transmission control module — the electronic unit that manages the gearbox
Control Module
A control unit for one of the vehicle's systems (engine, gearbox, brakes, body, and so on)
Instrument Panel
The dashboard display that shows warning lights and messages
Keyless Entry
Unlocking the car with a remote or by carrying the key, without turning a barrel
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
Evaporator
The air-conditioning heat exchanger in the dashboard that cools the cabin air

Frequently asked questions

What are the common faults with the Alfa Romeo Giulia 2.0?

This guide contains 10 workshop bulletins for the Alfa Romeo Giulia 2.0. Of these, six 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 Giulia 2.0 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 Giulia 2.0 faults myself?

Many of them. The documented symptoms can be seen, heard or felt during a test drive.

Related guides

Glossary term

See in the glossary →