Is the 2006 SEAT ALTEA reliable?

Average reliability. Expect some repairs as it ages. 70% of SEAT ALTEAs from 2006 passed their MOT first time in 2026, based on 2,255 tests. That's 12 points below the national average of 82%.

How much does a 2006 SEAT ALTEA cost to run?

Estimated annual running cost is £1,857 (£155/month), including £1037 fuel, £265 road tax, £55 MOT, and £500 predicted repairs.

What is the MOT pass rate for a 2006 SEAT ALTEA?

The 2006 SEAT ALTEA has a 70% MOT pass rate based on 2,255 tests in 2026. This ranks 416 out of 575 cars from 2006.

Which year SEAT ALTEA is most reliable?

The 2015 SEAT ALTEA has the highest MOT pass rate at 83%. The least reliable year is 2004 at 66%.

What is the average mileage for a 2006 SEAT ALTEA?

The average mileage for a 2006 SEAT ALTEA is 123,008 miles, which is in line with the expected 148,000 miles for a 20-year-old car, suggesting normal everyday use.

SEAT ALTEA (2006)

Running costs, reliability data, and common problems from 2,255 real MOT tests.

Annual Cost

£1,857

£155/month

MOT Pass Rate

70%

Average

Road Tax

£265

Based on CC/year

Insurance

Grp 18-32

1968cc Diesel

Check Carefully

70% pass rate, £1857/year to run. 12 points below average.

Buying this car? Check for finance, write-offs & theft

£4.99

Check a specific SEAT ALTEA

Enter a reg plate for full MOT history, mileage check, health score, running costs, and reliability data. Free, instant, no signup.

Diesel1968cc20 years old2,255 tests123k miles avg

Annual Running Costs

Fuel (Diesel, 1968cc)

~48 mpg

£1,037

Road Tax

Based on 1968cc

£265

MOT Test

£55

Predicted Repairs

Higher estimate due to low pass rate

£500

Total per year£1,857

Per month£155/mo

Per week£36/wk

Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT data. Insurance not included.

🛡️

Get an insurance quote for this SEAT ALTEA

Compare quotes and find the best deal

Reliability Verdict

70% MOT pass rate(Average)

0%National avg: 82%100%

Average reliability. Expect some repairs as it ages. That's 12 points below the national average of 82%. It falls below the SEAT brand average of 85%.

At 20 years old, 70% of SEAT ALTEAs from 2006 passed their MOT first time in 2026. That's based on 2,255 tests across the UK. The average mileage at this age is 123,008 miles.

Got a SEAT ALTEA you're looking at?

Enter the reg plate to check its specific MOT history, mileage, and health score.

How Does It Compare?

Rank among 2006 cars416th of 575(top 72%)

Rank among SEAT models279th of 311(top 90%)

vs national average-12%(82% avg)

vs 2006 cars average-3%(73% avg)

vs SEAT average-15%(85% avg)

Mileage Analysis

123,008

Average miles

148,000

Expected for age

The average 2006 SEAT ALTEA has 123,008 miles on the clock, which is in line with the expected 148,000 miles for a 20-year-old car, suggesting normal everyday use.

Looking at a specific SEAT ALTEA?

Enter its reg plate for a free check with full MOT history, mileage verification, and predicted costs.

Best Year to Buy?

The most reliable year is the 2015 model with a 83% MOT pass rate, while the 2004 model has the lowest at 66%. The 2006 sits between the two at 70%.

SEAT ALTEA by Year

Year	Pass Rate	Tests	Avg Mileage
2015	83%	719	75,236 mi
2014	81%	1,186	79,876 mi
2013	78%	2,135	90,012 mi
2012	77%	2,577	98,817 mi
2011	75%	2,094	105,969 mi
2010	74%	2,289	112,168 mi
2009	73%	2,630	117,296 mi
2008	71%	3,140	122,300 mi
2007	72%	3,709	124,859 mi
2006	70%	2,255	123,008 mi
2005	68%	1,174	132,148 mi
2004	66%	477	126,960 mi

Similar Cars to Consider

VOLKSWAGEN GOLF

2007 · 1896cc Diesel

£1,727/year

73%

+3%

VAUXHALL ASTRA

2007 · 1686cc Diesel

£1,727/year

71%

+1%

HONDA CIVIC

2007 · 2204cc Diesel

£2,050/year

72%

+2%

AUDI A4

2008 · 1968cc Diesel

£1,727/year

78%

+8%

Check a Specific Seat Altea

Enter a reg plate to get the full MOT history, health score, and mileage verification.

Upgrade to Premium (£4.99) for stolen, finance, and write-off checks.

About the 2006 SEAT ALTEA

The 2006 SEAT ALTEA is a family car with a 1968cc diesel engine. 2,255 of these vehicles were MOT tested in 2026, making it a reasonably common sight on UK roads. Among all cars from 2006, the average MOT pass rate is 73%, and this model falls short of that benchmark.

With an average of 123,008 miles at 20 years old, SEAT ALTEA owners drive about as much as the UK average.

2006 SEAT ALTEA Fuel Costs

The 1968cc diesel engine offers a reasonable balance between performance and economy. Expect around 48 mpg in mixed driving, which works out to roughly £1,037 per year at current diesel prices of 148p per litre (based on 7,400 miles per year). Diesel cars of this age should have their DPF (diesel particulate filter) checked, as replacements can be costly.

What does it cost to own a 2006 SEAT ALTEA?

Total estimated annual running cost is £1,857 (£155/month), broken down as £1037 fuel, £265 road tax, £55 MOT, and £500 predicted repairs. Repair costs are moderate, reflecting the 70% pass rate. Keeping on top of servicing will help avoid surprises.

SEAT ALTEA Reliability Trend

Newer SEAT ALTEAs show better MOT pass rates than older ones, with an average improvement of 8 percentage points.

Buying a Used 2006 SEAT ALTEA

At 20 years old, the SEAT ALTEA is firmly in budget territory. Purchase prices are low, but check for rust, worn suspension bushes, and electrical gremlins. A full service history is especially valuable at this age. If you're flexible on year, the 2015 model has the highest pass rate at 83%.

Common Issues to Watch For

Based on the 2006 SEAT ALTEA's fuel type, age, and engine size, these are the most likely problem areas to check.

DPF (Diesel Particulate Filter)

Watch out

Short journeys clog the DPF. Replacement costs £1,000-£2,500. Check the DPF warning light and ask about driving patterns.

Turbo Wear

Watch out

Diesel turbos work harder and wear faster. Listen for whining noises and check for oil leaks around the turbo housing.

EGR Valve

Watch out

Exhaust Gas Recirculation valves clog with carbon deposits, causing rough running and poor economy. Cleaning costs £150-£300, replacement £300-£600.

Rust and Corrosion

Watch out

At 10+ years, check wheel arches, sills, subframe, and brake lines for rust. Structural corrosion is an MOT failure. Prevention is far cheaper than repair.

Suspension Bushings

Watch out

Rubber suspension bushes harden and crack with age, causing knocking noises and vague handling. A full refresh costs £300-£800 depending on the car.

Clutch Wear

Watch out

With an average of 123k miles, clutch replacement may be due (typical lifespan 60,000-100,000 miles). Budget £400-£800 for a new clutch kit.

Brake Discs and Pads

Medium risk

High-mileage cars often need brake disc replacement, not just pads. A full set of discs and pads costs £200-£500 per axle.

Engine Mounts

Medium risk

Worn engine mounts cause excessive vibration and movement. Replacement costs £150-£400 per mount. Check for vibration at idle with the bonnet open.

Service History

Low risk

Always request a full service history. Regular servicing is the single best indicator of how well a car has been maintained, regardless of mileage.

Running Costs Compared

How the 2006 SEAT ALTEA stacks up against similar cars for annual running costs, insurance, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Insurance	Total/yr
SEAT ALTEA(2006)	70%	£1037	£265	Grp 18-32	£1857
VOLKSWAGEN GOLF(2007)	73%	£1037	£135	Grp 18-32	£1727-£130
VAUXHALL ASTRA(2007)	71%	£1037	£135	Grp 18-32	£1727-£130
HONDA CIVIC(2007)	72%	£1245	£250	Grp 25-38	£2050+£193
AUDI A4(2008)	78%	£1037	£135	Grp 18-32	£1727-£130

Estimates based on 7,400 miles/year, current fuel prices, and MOT data. Insurance groups are indicative. Actual costs vary by driver, location, and usage.