2014 Mazda 5 diesel: common problems and MOT failures

What goes wrong more than usual on a 2014 Mazda 5 diesel?

Parts flagged at MOT more often on the 2014 Mazda 5 diesel than on all cars registered in 2014.

• Suspension arm bushes and joints2.7× usual
  Mazda 5

  19.1% All 2014 cars

  7.1%

  Failed outright at MOT: 3.7%, against 1.5% of all 2014 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.

• Ball joint3.6× usual
  Mazda 5

  12.8% All 2014 cars

  3.6%

  Failed outright at MOT: 9%, against 2% of all 2014 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.

• Anti-roll bar link joints5.1× usual
  Mazda 5

  7.1% All 2014 cars

  1.4%

  Failed outright at MOT: 3.3%, against 0.5% of all 2014 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-frame3.8× usual
  Mazda 5

  6% All 2014 cars

  1.6%

  Failed outright at MOT: 0.1%, against 0.1% of all 2014 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 arm4.8× usual
  Mazda 5

  5.3% All 2014 cars

  1.1%

  Failed outright at MOT: 0.2%, against 0.1% of all 2014 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.

Common 2014 Mazda 5 diesel MOT failures and advisories

The share of 2014 Mazda 5 diesel MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.

• Suspension
  45% 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
  32% 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
  18% of testsRough price £10–£80

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

• Wipers, windscreen and mirrors
  7% of testsRough price £15–£250

  At the viewing: Check for chips in the driver's view, and test the wipers and washers.

• Oil and fluid leaks
  6% 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 2014 Mazda 5 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 suspension arm bushes and joints? (Flagged at MOT 2.7× as often on the 2014 Mazda 5 diesel as on other cars the same age.)
2. Any recent work on the ball joint? (Flagged at MOT 3.6× as often on the 2014 Mazda 5 diesel as on other cars the same age.)
3. Any recent work on the anti-roll bar link joints? (Flagged at MOT 5.1× as often on the 2014 Mazda 5 diesel as on other cars the same age.)
4. Can I see the service history and receipts for any big jobs?