2021 Alfa Romeo Giulia Service and Repair Manual

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Factory-Grade Data

2021 Alfa Romeo Giulia service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.

Built for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and use wiring diagrams and system sections to diagnose problems faster.

What’s included

  • Step-by-step repair procedures and service information
  • Specifications and reference data (where provided)
  • Electrical coverage with wiring diagrams
  • Coverage across key systems: engine, transmission, brakes, steering, suspension, HVAC, and more

Trims covered

  • Quadrifoglio Sedan 4-Door
  • Lusso Sedan 4-Door
  • TI Sport Sedan 4-Door
  • Sprint Sedan 4-Door
  • TI Sedan 4-Door

Engines covered

  • 2.9L 2891CC V6 GAS DOHC Turbocharged
  • 2.0L 1997CC 122Cu. In. l4 GAS SOHC Turbocharged
  • 2.0L 1995CC 122Cu. In. l4 GAS SOHC Turbocharged

Index / Table of contents

  • Body
  • Brakes
  • Chassis Electrical
  • Driveline
  • Engine Cooling
  • Engine Electrical
  • Engine Mechanical
  • Engine Performance & Emission Controls
  • Fuel System
  • General Information & Identification
  • Heating, Ventilation, & Air Conditioning
  • Hybrid & Electric Vehicle Systems
  • Steering
  • Suspension
  • Transmission, Clutch, & Transfer Case
  • Wiring Diagrams

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Vehicle Safety Data

2021 Alfa Romeo Giulia Recalls & Complaints

NHTSA #21V87800012/11/2021Component: FUEL SYSTEM, GASOLINE:DELIVERY:PRESSURE SENSOR

Chrysler (FCA US, LLC) is recalling certain 2020-2021 Alfa Romeo Stelvio, and Alfa Romeo Giulia vehicles. The fuel line sensor housing may crack and leak fuel.

Consequence

A fuel leak may cause an engine stall, increasing the risk of a crash. A fuel leak also increases t

Remedy

Dealers will inspect and replace the fuel line sensor housing, as necessary, free of charge. Owner

NHTSA #25V66700007/10/2025Component: BACK OVER PREVENTION:DISPLAY FUNCTION

Chrysler (FCA US, LLC) is recalling certain 2020-2025 Alfa Romeo Giulia and Alfa Romeo Stelvio vehicles. The printed circuit board and software for the rearview camera may contain defects that cause t

Consequence

A rearview image that does not display properly reduces the driver's view behind the vehicle, increa

Remedy

Dealers will inspect and replace the radio, as necessary. In addition, dealers will update the rearv

NHTSA #21V30900004/05/2021Component: SERVICE BRAKES, HYDRAULIC

Chrysler (FCA US, LLC) is recalling certain 2019-2021 Alfa Romeo Stelvio and 2020-2021 Alfa Romeo Giulia vehicles. Hard braking may cause the Anti-Lock Brake System (ABS) Hydraulic Control Unit (HCU)

Consequence

The loss of braking assistance and ABS functionality can reduce overall braking performance, increas

Remedy

Dealers will replace the ABS HCU, free of charge. Owner notification letters were mailed on June 29

TSB #11032849

Oil Change Monitor Displaying Prematurely Customers may experience the following: The oil change light illuminated on the dash shortly after taking delivery of the vehicle within 6,437 Km (4,000 miles) This bulletin involves resetting the o

TSB #11030138

The vehicle will exhibit a service transmission/check engine warning indicator for the following transmission models: 845RE, 8HP45, 850RE, 8HP50, 8HP70, 8HP75, 8HP75-PHEV, 8HP75-LCV, 8HP90, 8HP95. Transmissions may exhibit the following dia

TSB #11030035

Start Stop Charging Warning Lamp Illuminated On, Intelligent Battery Sensor (IBS) State of Charge (SOC) Inaccurate, Battery Charging Message, Presence of IBS related Diagnostic Trouble Codes (DTCs), or Battery Warning Lamp On

TSB #11028904

Start Stop Charging Warning Lamp Illuminated On, Intelligent Battery Sensor (IBS) State of Charge (SOC) Inaccurate, Battery Charging Message, Presence of IBS Related Diagnostic Trouble Codes (DTCs), or Battery Warning Lamp On

TSB #11027645

Customer Satisfaction Notification 64C Powertrain Control Module Wiring Harness- Dealer Notification

TSB #11026677

Telematics Box Module (TBM) Backup Battery Replacement When DTC B1E21 Is Present Technicians may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC): B1E21-9

TSB #11026660

If the DTC B1E21-96: Backup Battery-Component Internal Failure is active and customer states Popup message will show at the radio: "Battery of Uconnect Box requires service. SOS call and related functions may be unavailable. Please visit an

TSB #11026575

Radio- Multi Media

Showing the 8 most recent of 132 technical service bulletins on file with NHTSA.

20260508Component: FORWARD COLLISION AVOIDANCE: WARNINGSCrash reported

In Feb 2025, I was involved in an accident where a driver damaged my driver's side door. I brought my car to the Fix Auto Downtown LA location for repairs. Cosmetically the door was repaired, but over

20260508Component: ELECTRICAL SYSTEMCrash reported

In Feb 2025, I was involved in an accident where a driver damaged my driver's side door. I brought my car to the Fix Auto Downtown LA location for repairs. Cosmetically the door was repaired, but over

20260508Component: BACK OVER PREVENTION: WARNINGSCrash reported

In Feb 2025, I was involved in an accident where a driver damaged my driver's side door. I brought my car to the Fix Auto Downtown LA location for repairs. Cosmetically the door was repaired, but over

20260209Component: UNKNOWN OR OTHER

Return Coolant Hose from the turbo to the secondary coolant expansion tank had burst at 60,000 miles. Tube was completely brittle, snapped right in half. According to some forms online, this tube is "

20260206Component: FUEL SYSTEM, GASOLINE

The contact owns a 2021 Alfa Romeo Giulia. The contact stated that it was difficult refuel the fuel to full. Additionally, it was difficult to insert the nozzle into the fuel filler neck. There was no

Showing the 5 most serious of 12 complaints filed with NHTSA.

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