2015 Ford Grand C-Max diesel: common problems and MOT failures

What goes wrong more than usual on a 2015 Ford Grand C-Max diesel?

Parts flagged at MOT more often on the 2015 Ford Grand C-Max diesel than on all cars registered in 2015.

• Brake pads1.8× usual
  Ford Grand C-Max

  18.7% All 2015 cars

  10.4%

  Failed outright at MOT: 4.8%, against 2.2% of all 2015 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.

• Suspension arm bushes and joints1.8× usual
  Ford Grand C-Max

  10.5% All 2015 cars

  5.9%

  Failed outright at MOT: 1.2%, against 1.2% of all 2015 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.

• Tyre pressure monitoring system4.4× usual
  Ford Grand C-Max

  5.3% All 2015 cars

  1.2%

  Failed outright at MOT: 5.3%, against 1.2% of all 2015 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. Uneven wear can point to tracking or suspension problems.

• Number plate lights1.9× usual
  Ford Grand C-Max

  6.5% All 2015 cars

  3.5%

  Failed outright at MOT: 1.5%, against 1.1% of all 2015 cars. The rest were advisories or minor defects.

  Rough price £5–£40 our estimate

  At the viewing: Check the number plate lights work and the plates are clean and legal.

Common 2015 Ford Grand C-Max diesel MOT failures and advisories

The share of 2015 Ford Grand C-Max diesel MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.

• Tyres
  41% 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
  27% 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
  20% of testsRough price £10–£80

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

• Suspension
  18% 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.

• Wipers, windscreen and mirrors
  9% of testsRough price £15–£250

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

• Seats and seatbelts
  6% of testsRough price £80–£250

  At the viewing: Pull each seatbelt sharply. It should lock, and retract cleanly.

Known faults on the 2015 Ford Grand C-Max 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.

• Electrical faults

  All engines

  Electrical faults, mostly non-engine electrics, are the most common problems.

  At the viewing: Test every electrical item, including windows, lights and the infotainment.

  Source: What Car?: used Ford C-Max (2011-2019) reliability

Questions to ask the seller before buying a 2015 Ford Grand C-Max 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 brake pads? (Flagged at MOT 1.8× as often on the 2015 Ford Grand C-Max diesel as on other cars the same age.)
2. Any recent work on the suspension arm bushes and joints? (Flagged at MOT 1.8× as often on the 2015 Ford Grand C-Max diesel as on other cars the same age.)
3. Any recent work on the tyre pressure monitoring system? (Flagged at MOT 4.4× as often on the 2015 Ford Grand C-Max diesel as on other cars the same age.)
4. Can I see the service history and receipts for any big jobs?