2003 Mazda 323: common problems and MOT failures

What goes wrong more than usual on a 2003 Mazda 323?

Parts flagged at MOT more often on the 2003 Mazda 323 than on all cars registered in 2003.

• Rust around suspension or steering mountings3.4× usual
  Mazda 323

  21.1% All 2003 cars

  6.2%

  Failed outright at MOT: 13.5%, against 3.1% of all 2003 cars. The rest were advisories or minor defects.

  Rough price £100–£450 our estimate

  At the viewing: On a straight road the steering wheel should sit straight. Listen for knocks when turning, and check the steering feels even.

• Anti-roll bar link joints3× usual
  Mazda 323

  10.1% All 2003 cars

  3.4%

  Failed outright at MOT: 3.4%, against 1.2% of all 2003 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.

• Link ball joint covers3.9× usual
  Mazda 323

  8.9% All 2003 cars

  2.3%

  Failed outright at MOT: 3.9%, against 1.3% of all 2003 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.

• Brake pads2× usual
  Mazda 323

  13.4% All 2003 cars

  6.8%

  Failed outright at MOT: 4.3%, against 1.7% of all 2003 cars. The rest were advisories or minor defects.

  Rough price £75–£175 (one axle) ClickMechanic

  At the viewing: Listen for squealing or grinding when braking, and look through the wheel at how much pad is left.

• Body structure rust or damage2.9× usual
  Mazda 323

  9.1% All 2003 cars

  3.1%

  Failed outright at MOT: 3.4%, against 0.9% of all 2003 cars. The rest were advisories or minor defects.

  Rough price £150–£1,000 our estimate

  At the viewing: Look underneath and along the sills for flaky rust or fresh underseal hiding it.

Common 2003 Mazda 323 MOT failures and advisories

The share of 2003 Mazda 323 MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.

• Suspension
  49% 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.

• Brakes
  38% 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.

• Tyres
  32% 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.

• Lights and electrics
  29% of testsRough price £10–£80

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

• Rust and bodywork
  21% of testsRough price £150–£1,000

  At the viewing: Check the sills, wheel arches and underneath for rust, and look along the panels for uneven gaps or paint.

• Oil and fluid leaks
  17% of testsRough price £80–£600

  At the viewing: Look under the engine and on the ground where the car is usually parked for fresh oil or fluid.

Questions to ask the seller before buying a 2003 Mazda 323

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

1. Any recent work on the rust around suspension or steering mountings? (Flagged at MOT 3.4× as often on the 2003 Mazda 323 as on other cars the same age.)
2. Any recent work on the anti-roll bar link joints? (Flagged at MOT 3× as often on the 2003 Mazda 323 as on other cars the same age.)
3. Any recent work on the link ball joint covers? (Flagged at MOT 3.9× as often on the 2003 Mazda 323 as on other cars the same age.)
4. Can I see the service history and receipts for any big jobs?