Used car guide

2008 SEAT Leon diesel: common problems and MOT failures

What MOT testers find on the diesel SEAT Leon first registered in 2008 (diesel cars only): we looked at the 7,941 MOTs these cars had during 2023–2025. Plus known faults and what to look at before you buy one.

7,941MOTs of 2008 diesel cars, done in 2023–2025
58%pass first time (all 2008 cars: 57%)
8,400typical miles a year
2×the usual rate for drive shaft (cv) joints

What goes wrong more than usual on a 2008 SEAT Leon diesel?

Parts flagged at MOT more often on the 2008 SEAT Leon diesel than on all cars registered in 2008.

  • Drive shaft (CV) joints2× usual
    SEAT Leon
    13.3% All 2008 cars
    6.6%

    Failed outright at MOT: 4.9%, against 3% of all 2008 cars. The rest were advisories or minor defects.

    Rough price £60–£350 our estimate

    At the viewing: Drive slowly on full steering lock in both directions and listen for clicking. Look for split rubber boots behind the front wheels.

  • Anti-roll bar link joints2.3× usual
    SEAT Leon
    9.5% All 2008 cars
    4.2%

    Failed outright at MOT: 2.5%, against 1.6% of all 2008 cars. The rest were advisories or minor defects.

    Rough price £60–£150 (one joint) ClickMechanic

    At the viewing: Listen for knocking over bumps and check the rubber boots behind the wheels aren't split.

  • Sub-frame1.9× usual
    SEAT Leon
    11.3% All 2008 cars
    6%

    Failed outright at MOT: 0.1%, against 0.4% of all 2008 cars. The rest were advisories or minor defects.

    Rough price £300–£1,000 our estimate

    At the viewing: Look underneath at the frame the suspension bolts to. Flaky rust or holes are expensive to fix.

  • Braking performance1.7× usual
    SEAT Leon
    11.3% All 2008 cars
    6.6%

    Failed outright at MOT: 4%, against 2.7% of all 2008 cars. The rest were advisories or minor defects.

    Rough price £100–£350 our estimate

    At the viewing: On a quiet road, brake firmly from about 30mph. The car should stop straight without pulling.

  • Shock absorbers1.6× usual
    SEAT Leon
    12% All 2008 cars
    7.5%

    Failed outright at MOT: 2.7%, against 2.1% of all 2008 cars. The rest were advisories or minor defects.

    Rough price £200–£300 (pair, average rear to front) ClickMechanic

    At the viewing: Push down hard on each corner. It should bounce once and settle. Look for oil on the shock absorber body.

Better than most

Rigid brake pipes: 2% here, against 9.3% of all 2008 cars.

Common 2008 SEAT Leon diesel MOT failures and advisories

The share of 2008 SEAT Leon diesel MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.

  • Suspension
    53% of testsRough price £120–£400

    At the viewing: Listen for knocks over speed bumps, and look behind each front wheel for a snapped coil spring.

  • Tyres
    37% of testsRough price £70–£150

    At the viewing: Check the tread on all four tyres, including the inside edges, and look for cracks or bulges.

  • Brakes
    36% of testsRough price £150–£350

    At the viewing: Look for a lip on the disc edges and feel for judder or pulling when braking firmly from about 40mph.

  • Lights and electrics
    35% of testsRough price £10–£80

    At the viewing: Ask a friend to check every light, including brake lights and indicators, while you operate them.

  • Exhaust and emissions
    16% of testsRough price £100–£1,200

    At the viewing: Look for black soot in the tailpipe, listen for blowing from the exhaust and check for engine or DPF warning lights.

  • Driveshafts and joints
    13% of testsRough price £60–£350

    At the viewing: On full steering lock, drive slowly and listen for clicking from the front wheels.

Questions to ask the seller before buying a 2008 SEAT Leon diesel

Ask before you travel to see it. A seller who knows the car will have answers, and receipts.

  1. Any recent work on the drive shaft (cv) joints? (Flagged at MOT 2× as often on the 2008 SEAT Leon diesel as on other cars the same age.)
  2. Any recent work on the anti-roll bar link joints? (Flagged at MOT 2.3× as often on the 2008 SEAT Leon diesel as on other cars the same age.)
  3. Any recent work on the sub-frame? (Flagged at MOT 1.9× as often on the 2008 SEAT Leon diesel as on other cars the same age.)
  4. Can I see the service history and receipts for any big jobs?

Looking at a SEAT Leon?

Check the actual car: its own MOT history, mileage and what to ask the seller. Free, no sign-up.

Other years

Every year of the SEAT Leon compared

YearMOT testsMost flagged
2026–Too new for MOT data
2025–Too new for MOT data
2024–Too new for MOT data
2023–Too new for MOT data
20223,753Tyres 32%
202122,353Tyres 29%
202040,786Tyres 29%
201957,652Tyres 30%
201862,279Tyres 31%
201753,966Tyres 30%
201646,971Tyres 30%
201550,821Tyres 31%
201455,252Tyres 32%
201334,188Tyres 33%
201226,091Suspension 41%
201119,244Suspension 47%
201016,979Suspension 50%
200914,294Suspension 49%
200712,655Suspension 48%
20068,290Suspension 48%
20054,943Suspension 45%
20044,210Brakes 44%
20033,267Suspension 43%
20021,589Suspension 49%
2001757Suspension 47%
2000161Suspension 50%

Where this comes from: the DVSA's anonymised results for every MOT test done in Great Britain during 2023–2025, counting the MOTs of SEAT Leon cars first registered in 2008. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score