Hyundai Accent Si (1999)

147 real MOT outcomes analysed • 35.3% first-time pass rate

1999 Hyundai Accent Si

CarHunch analysed 147 real MOT records for the 1999 Hyundai Accent Si. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.

The 1999 Hyundai Accent Si has a first-time MOT pass rate of just 35.3%, less than half the UK average of 80%, which signals serious reliability concerns for a vehicle now over two decades old. With 5.4% of cars having recorded dangerous defects, this isn't a catastrophic safety issue, but it's a warning sign that deserves pre-purchase inspection.

These Accents are running at modest mileage for their age (median 64,209 miles), yet they're still racking up an average of 0.9 failures and 1.9 advisories per test, suggesting mechanical wear and corrosion typical of cars this old rather than abuse. If you're considering one, budget for immediate remedial work and have an independent mechanic examine the chassis, brakes, and steering before committing.

Below average reliability 44.7% below UK average
35.3%
pass MOT first time
UK average: ~80%
64,209
typical mileage
47,528–84,695 middle half
5.4%
ever had a dangerous defect
recorded at any MOT
0.9
avg MOT failures per car
over 3.1 tests on record

What to check before buying a 1999 Hyundai Accent Si

Practical pre-purchase checks for this age and model.

  • 📋 Check the full MOT history. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. Enter the reg below for a full AI analysis.
  • 🔍 Inspect for corrosion in person. Brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that's expensive to fix and can fail an MOT.
  • 🛞 Check tyres and brakes. The most common advisory items at this age. Budget for replacement if they're near the limit — factor this into your offer price.
  • 📄 Run an HPI check. The MOT history won't show outstanding finance, insurance write-offs, or stolen status — an HPI check will.

Before you buy a Hyundai Accent Si

MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.

Inspection ClickMechanic Have a qualified mechanic check this car before you commit to buying

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Pass Rate by Fuel Type

Fuel type Vehicles Pass rate Avg failures
Petrol (99%) 146 34.8% 0.91
Other (1%) 1 100% 0

Mileage Distribution

Most 1999 Hyundai Accent Si vehicles sit in the blue band. If the car you're looking at is outside it, it's either unusually low or high mileage for its age.

47,528
low mileage
64,209
typical
84,695
high mileage

Half of all 1999 Hyundai Accent Si vehicles fall between 47,528 and 84,695 miles.

MOT History Averages

3.1
Avg MOT tests per vehicle
0.9
Avg failures per vehicle
1.9
Avg advisories per vehicle

Found a specific Hyundai Accent Si?

Enter the reg to see its individual MOT history, AI Hunches, and how it compares to this cohort.

UK

Other model years — Hyundai Accent Si:

2000