2012 Ford Ka diesel: common problems and MOT failures

What goes wrong more than usual on a 2012 Ford Ka diesel?

Parts flagged at MOT more often on the 2012 Ford Ka diesel than on all cars registered in 2012.

• Shock absorbers4.6× usual
  Ford Ka

  26.4% All 2012 cars

  5.8%

  Failed outright at MOT: 10.7%, against 1.5% of all 2012 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.

• Ball joint2.8× usual
  Ford Ka

  14.8% All 2012 cars

  5.2%

  Failed outright at MOT: 7.8%, against 2.9% of all 2012 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.

• Engine oil leaks2.4× usual
  Ford Ka

  13.9% All 2012 cars

  5.9%

  Failed outright at MOT: 0.2%, against 0.1% of all 2012 cars. The rest were advisories or minor defects.

  Rough price £80–£600 our estimate

  At the viewing: Look under the engine and where the car is usually parked for fresh oil. Ask whether the leak has been looked at.

• Wheels4.9× usual
  Ford Ka

  7.8% All 2012 cars

  1.6%

  Failed outright at MOT: 1.2%, against 0.5% of all 2012 cars. The rest were advisories or minor defects.

  Rough price £70–£150 our estimate

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

• Sub-frame2.6× usual
  Ford Ka

  8.8% All 2012 cars

  3.4%

  Failed outright at MOT: 0.2%, against 0.2% of all 2012 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.

Common 2012 Ford Ka diesel MOT failures and advisories

The share of 2012 Ford Ka diesel MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.

• Suspension
  61% 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.

• Lights and electrics
  27% of testsRough price £10–£80

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

• Brakes
  24% 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.

• Oil and fluid leaks
  19% 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.

• Exhaust and emissions
  11% 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.

Known faults on the 2012 Ford Ka diesel

Reported by owners, mechanics and buying guides for this model and age. Check which engine the car has, as some apply to one engine only.

• Worn clutch and gearbox from town driving

  All engines

  A life of town driving wears the clutch, and notchy gear changes can mean an abused gearbox.

  At the viewing: Accelerate in a high gear to check the clutch doesn't slip, and try every gear.

  If it needs doing: Clutch replacement, about £250–£600. ClickMechanic

  Source: What Car?: used Ford Ka 2008-2016 advice

• Blocked DPF (1.3 diesel)

  1.3 diesel

  Short trips can stop the diesel's particulate filter cleaning itself. A rising oil level can mean fuel getting into the oil.

  At the viewing: Ask how the car's been used and check the oil isn't above the top mark.

  If it needs doing: DPF clean or regeneration, about £160–£500. ClickMechanic

  Source: What Car?: used Ford Ka 2008-2016 advice

• Poor accident repairs and rust

  All engines

  Scraped bumpers are common, and cheap accident repairs can rust.

  At the viewing: Look along the panels for mismatched paint, uneven gaps and bubbling.

  Source: What Car?: used Ford Ka 2008-2016 advice

Questions to ask the seller before buying a 2012 Ford Ka diesel

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

1. Has the clutch been replaced?
2. Has the DPF ever been cleaned?
3. Has the car had any bodywork?
4. Any recent work on the shock absorbers? (Flagged at MOT 4.6× as often on the 2012 Ford Ka diesel as on other cars the same age.)
5. Any recent work on the ball joint? (Flagged at MOT 2.8× as often on the 2012 Ford Ka diesel as on other cars the same age.)
6. Any recent work on the engine oil leaks? (Flagged at MOT 2.4× as often on the 2012 Ford Ka diesel as on other cars the same age.)