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Saab Common Problems & Known Faults

We track 20 known issues across 4 Saab models, with an average MOT failure rate of 26.6%. Covering engine problems, electrical faults, suspension wear and more: what goes wrong, what it costs, and what to check before buying a used Saab.

Check any Saab before you buy

Enter a registration number to check its full dealer service history. See every dealer visit, dates, mileage, and work done so you know whether the maintenance that prevents these problems was actually carried out.

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How reliable are Saab cars?

Our database covers 4 Saab models and 20 documented faults across the range. Of these, 5 are classified as dangerous and a further 13 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, Saab models fail at an average rate of 26.6%, which is above the 22.7% average across all manufacturers in our database. Reliability varies considerably between models. The 9 5 is the strongest performer at just 24.2%, while the 900 has the highest failure rate at 30.3%.

If you are considering a used Saab, researching the specific model and generation you are looking at makes a real difference. The most common failure areas across the range are body & rust 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.

Saab reliability summary

Average MOT failure rate
26.6%
Across 3 models with MOT data
Most reliable model
9 5
24.2% MOT failure rate
View problems →
Least reliable model
900
30.3% MOT failure rate
View problems →
Total MOT tests analysed
648,953
Across 3 Saab models

Where Saab problems occur

Understanding which systems are most prone to failure helps you focus during a test drive or pre-purchase inspection. Here is how Saab's 20 known issues break down by area.

Body & Rust problems dominate, accounting for 5 of the 20 faults we track (25%). Issues in this area include Subframe mounting point corrosion (9-3SS) and Floor pan corrosion (9-3SS). The most affected models are the 9 3 (2), the 900 (1), the 9 5 (1).

Suspension is the next most common area, with 4 documented faults (20%). Common faults here include Suspension component corrosion (9-3SS) and Suspension bushes and joints excessive wear. The most affected models are the 900 (1), the 9 3 (1), the 9 5 (1).

We also track 4 brakes faults across the range (20%). Problems to watch for include Brake hose ferrule corrosion and Handbrake efficiency problems. The most affected models are the 9000 CSE (2), the 9 3 (1), the 9 5 (1).

Exhaust rounds out the top problem areas with 4 known issues (20%). Notable issues include DPF blockage and regeneration failure (1.9 TiD) and Diesel particulate filter blockage (1.9 TiD). The most affected models are the 900 (1), the 9 3 (1), the 9 5 (1).

Known Saab 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.

Dangerous

Major

+ 6 more major issues across Saab models

Minor

Top issues across the Saab range

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

Dangerous
Structural corrosion around suspension mounting points
Body & Rust 2 models affected
The 9-5 shows MOT failure rates 8.4 times higher than the fleet average for structural corrosion within 30cm of suspension mounting points. This affects the load-bearing structure and represents a ...
Independent garage
£500–£1,500
Affects: 9 5, 900
Dangerous
Subframe mounting point corrosion (9-3SS)
Body & Rust 1 model affected
The steel mounting points where the front subframe attaches to the body structure are prone to severe corrosion on the Epsilon platform 9-3. This affects the prescribed areas within 30cm of steerin...
Independent garage
£1,500–£3,000
Main dealer
£3,000–£5,000
Affects: 9 3
Dangerous
Fuel system leaking excessively (MK1 1.9 TiD and 2.3 Turbo)
Fuel System 1 model affected
The 9-5 shows MOT failure rates 34.6 times higher than the fleet average for fuel system leaks that pose a fire risk. This affects primarily the 1.9 diesel and 2.3 petrol variants at higher mileage...
Independent garage
£200–£600
Main dealer
£500–£1,200
Affects: 9 5
Dangerous
Structural corrosion around subframe mountings
Body & Rust 1 model affected
The 9000 CSE suffers from severe corrosion in the load-bearing areas around subframe and suspension mounting points, particularly where the rear subframe attaches to the body shell. This is a known...
Independent garage
£800–£1,500
Affects: 9000 CSE
Major
Brake hose ferrule corrosion
Brakes 3 models affected
The metal ferrules that secure flexible brake hoses to rigid brake lines corrode severely on 9-3 models. With over 22,000 recorded MOT failures at 2949.6 times the national average, this is a wides...
Independent garage
£200–£400
Main dealer
£350–£600
Affects: 9 3, 9 5, 9000 CSE
Major
Floor pan corrosion (9-3SS)
Body & Rust 1 model affected
The floor pan structure deteriorates severely on 9-3 Sport Sedan models, particularly around the rear seat area and sill connections. The Epsilon platform uses thinner steel than many contemporary ...
Independent garage
£2,000–£4,000
Affects: 9 3
Major
Suspension component corrosion (9-3SS)
Suspension 1 model affected
Control arms, wishbones, and associated suspension brackets suffer from severe corrosion on the Epsilon platform 9-3. This is the most statistically significant MOT failure on this model, with 89 r...
Independent garage
£400–£800
Main dealer
£700–£1,200
Affects: 9 3
Major
DPF blockage and regeneration failure (1.9 TiD)
Exhaust 1 model affected
The 1.9 litre diesel engines fitted with diesel particulate filters suffer from blockage issues, particularly on vehicles used for short urban journeys. The DPF regeneration system is sensitive to ...
Independent garage
£800–£1,500
Main dealer
£1,500–£2,500
Affects: 9 3
Major
Suspension bushes and joints excessive wear
Suspension 1 model affected
The 9-5 shows MOT failure rates 27.4 times higher than the fleet average for suspension bush and joint wear. With 310 recorded failures across all variants, this is one of the most significant issu...
Independent garage
£300–£600
Main dealer
£600–£1,200
Affects: 9 5
Major
Diesel particulate filter blockage (1.9 TiD)
Exhaust 1 model affected
This indicates widespread DPF (Diesel Particulate Filter) blockage issues affecting this engine variant. The DPF system requires regular high-temperature operation to burn off accumulated soot, but...
Independent garage
£150–£1,500
Main dealer
£300–£2,500
Affects: 9 5

Check any Saab before you buy

Enter a registration number to check its full dealer service history. See every dealer visit, dates, mileage, and work done so you know whether the maintenance that prevents these problems was actually carried out.

★GB

£6.99 service history · £7.49 premium car check · Full refund if no records found

Problems by Saab model

We track faults across 4 Saab 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.

Saab 9 3
5 known issues · 502,409 MOTs
2 generations
25.3% MOT failure rate
Saab 9 5
5 known issues · 146,511 MOTs
2 generations
24.2% MOT failure rate
Saab 900
5 known issues · 33 MOTs
2 generations
30.3% MOT failure rate
Saab 9000 CSE
5 known issues
1 generation

What to check before buying a used Saab

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

The 5 dangerous-rated faults deserve special attention. These include Subframe mounting point corrosion (9-3SS), Fuel system leaking excessively (MK1 1.9 TiD and 2.3 Turbo), Structural corrosion around suspension mounting points. 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 Saab 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 26.6% average failure rate across the Saab 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.

Saab repair costs: what to expect

Across all documented faults, the average Saab repair costs between £514 and £1,138 at an independent garage. At the top end, the most expensive single repair can reach £4,000 or more. Main dealer rates are typically 30% to 50% higher across the board.

The single most expensive Saab repair in our database is Subframe mounting point corrosion (9-3SS), which can cost £3,000–£5,000 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.

Buying a used Saab? Check it first

Get the full picture before you commit. Our car check covers outstanding finance, write-off status, stolen records, plate changes and mileage discrepancies. Or check the service history to see whether the maintenance that prevents these problems was actually done.

★GB

£7.49 car check · £6.99 service history · Free basic report included

Saab reliability FAQs

Are Saab cars reliable?

Across 3 models with MOT data, Saab has an average MOT failure rate of 26.6%. The most reliable model is the 9 5 at 24.2% failure rate, while the 900 has the highest at 30.3%. We track 20 known issues across 4 Saab models.

What are the most common Saab problems?

The most common Saab problems include Structural corrosion around suspension mounting points, Subframe mounting point corrosion (9-3SS), and Fuel system leaking excessively (MK1 1.9 TiD and 2.3 Turbo). Across all Saab models we track 20 known issues, with 5 rated as dangerous.

Which Saab model is most reliable?

Based on MOT failure data, the Saab 9 5 is the most reliable model with a 24.2% failure rate from 146,511 tests. The least reliable is the 900 at 30.3%. However, individual car condition and service history matter more than model averages.

How much do Saab repairs cost?

Saab repair costs at independent garages average £514-£1,138 per issue. The most expensive repairs can reach £4,000 or more. Main dealer rates are typically 30-50% higher. Costs vary significantly by model and issue, so check the specific model page for detailed pricing.

Should I get a vehicle check before buying a Saab?

Yes. Saab models have 20 known issues between them, including 5 dangerous and 13 major problems. A service history check (£6.99) shows whether scheduled maintenance was done, and a premium car check (£7.49) covers finance, stolen, write-off status. Both are essential before buying any used Saab.

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