Alfa Romeo Common Problems & Known Faults

How reliable are Alfa Romeo cars?

Our database covers 11 Alfa Romeo models and 87 documented faults across the range. Of these, 16 are classified as dangerous and a further 41 as major. Dangerous faults are those that can compromise vehicle safety or lead to complete mechanical failure if left unaddressed.

According to DVSA MOT test data, Alfa Romeo models fail at an average rate of 24.8%, which is above the 22.7% average across all manufacturers in our database. Reliability varies considerably between models. The Stelvio is the strongest performer at just 10.6%, while the 156 has the highest failure rate at 32.2%.

If you are considering a used Alfa Romeo, researching the specific model and generation you are looking at makes a real difference. The most common failure areas across the range are engine and suspension, though each model has its own particular weak points. This page gives you a complete breakdown by severity, the models affected, and what repairs typically cost at UK garages.

Alfa Romeo reliability summary

Where Alfa Romeo problems occur

Understanding which systems are most prone to failure helps you focus during a test drive or pre-purchase inspection. Here is how Alfa Romeo's 87 known issues break down by area.

Engine problems dominate, accounting for 25 of the 87 faults we track (29%). Issues in this area include Timing belt service (Twin Spark petrol) and Cam variator failure (Twin Spark). The most affected models are the 147 (8), the 159 (6), the Mito (3).

Suspension is the next most common area, with 18 documented faults (21%). Common faults here include Front upper wishbone wear and Coil spring fracture. The most affected models are the Giulietta (3), the Spider (3), the 159 (2).

We also track 9 brakes faults across the range (10%). Problems to watch for include Flexible brake hose deterioration and Handbrake cable seizing. The most affected models are the Spider (2), the Stelvio (2), the 156 (1).

Body & Rust rounds out the top problem areas with 8 known issues (9%). Notable issues include Floorpan rust and Structural corrosion reducing rigidity. The most affected models are the 156 (2), the GT (2), the 147 (1).

Known Alfa Romeo faults by severity

Every fault in our database is rated by severity based on its potential safety impact and typical repair cost. Below is a sample of issues at each level, with links to the affected model pages where you can read the full details.

Top issues across the Alfa Romeo range

The most common and severe problems found across all Alfa Romeo models, ranked by severity and how many models are affected.

Problems by Alfa Romeo model

We track faults across 11 Alfa Romeo models. Each model page includes every known issue, generation-specific details, UK repair costs, and MOT failure data. Select a model below to see its full breakdown.

What to check before buying a used Alfa Romeo

Every used Alfa Romeo deserves a thorough inspection, but knowing the common weak points for your target model gives you a serious advantage. Since engine faults are the most common across the range, pay particular attention to this area during any viewing or test drive.

The 16 dangerous-rated faults deserve special attention. These include Timing belt service (Twin Spark petrol), Timing belt service (1.9 JTD diesel), Timing belt service (3.2 V6 Busso). Any of these can compromise safety or result in repair bills running well into the thousands.

A complete dealer service history is one of the strongest indicators of how well a Alfa Romeo has been looked after. Many of the faults on this page are preventable or can be caught early through regular servicing. If the seller cannot produce service records, treat that as a significant red flag.

Check the MOT history carefully too. With a 24.8% average failure rate across the Alfa Romeo range, some advisories and minor failures are normal over the life of any car. What matters is the pattern: recurring failures in the same area suggest an underlying problem, while a history of clean passes is encouraging.

Alfa Romeo repair costs: what to expect

Across all documented faults, the average Alfa Romeo repair costs between £342 and £687 at an independent garage. At the top end, the most expensive single repair can reach £3,000 or more. Main dealer rates are typically 30% to 50% higher across the board.

The single most expensive Alfa Romeo repair in our database is Structural corrosion reducing rigidity, which can cost £3,000–£6,000 at a main dealer.

These figures are based on reported UK repair costs and serve as a guide. Actual prices will vary depending on your location, the garage, and the parts required. Getting quotes from two or three specialists before committing to any major work is always worthwhile.