2009 SEAT Leon diesel: common problems and MOT failures

What goes wrong more than usual on a 2009 SEAT Leon diesel?

Parts flagged at MOT more often on the 2009 SEAT Leon diesel than on all cars registered in 2009.

• Drive shaft (CV) joints2.4× usual
  SEAT Leon

  11.7% All 2009 cars

  4.9%

  Failed outright at MOT: 4.2%, against 2.3% of all 2009 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.

• Shock absorbers1.9× usual
  SEAT Leon

  13.3% All 2009 cars

  7.1%

  Failed outright at MOT: 2.6%, against 2% of all 2009 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.

• Sub-frame1.9× usual
  SEAT Leon

  11.2% All 2009 cars

  5.9%

  Failed outright at MOT: 0.1%, against 0.4% of all 2009 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.

• Suspension arm2.6× usual
  SEAT Leon

  8.2% All 2009 cars

  3.1%

  Failed outright at MOT: 0.8%, against 0.4% of all 2009 cars. The rest were advisories or minor defects.

  Rough price £120–£180 (one arm) ClickMechanic

  At the viewing: Listen for clunks over bumps and feel for the steering wandering. Worn arm bushes show as cracked rubber near the wheels.

• Anti-roll bar link joints2.1× usual
  SEAT Leon

  8.8% All 2009 cars

  4.1%

  Failed outright at MOT: 3.1%, against 1.6% of all 2009 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.

Common 2009 SEAT Leon diesel MOT failures and advisories

The share of 2009 SEAT Leon diesel MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.

• Suspension
  52% 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
  34% 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
  31% 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
  14% 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
  12% 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 2009 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 2.4× as often on the 2009 SEAT Leon diesel as on other cars the same age.)
2. Any recent work on the shock absorbers? (Flagged at MOT 1.9× as often on the 2009 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 2009 SEAT Leon diesel as on other cars the same age.)
4. Can I see the service history and receipts for any big jobs?