2004 Fiat Doblo diesel: common problems and MOT failures

What goes wrong more than usual on a 2004 Fiat Doblo diesel?

Parts flagged at MOT more often on the 2004 Fiat Doblo diesel than on all cars registered in 2004.

• Headlights1.7× usual
  Fiat Doblo

  22.6% All 2004 cars

  13.2%

  Failed outright at MOT: 9.6%, against 4.9% of all 2004 cars. The rest were advisories or minor defects.

  Rough price £40–£400 our estimate

  At the viewing: Check both headlights on dipped and full beam, and look for cloudy or cracked lenses.

• Rust around suspension or steering mountings2.5× usual
  Fiat Doblo

  15% All 2004 cars

  6.1%

  Failed outright at MOT: 9.9%, against 2.9% of all 2004 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.

• Braking performance1.9× usual
  Fiat Doblo

  13.9% All 2004 cars

  7.3%

  Failed outright at MOT: 7.9%, against 3.1% of all 2004 cars. The rest were advisories or minor defects.

  Rough price £100–£350 our estimate

  At the viewing: On a quiet road, brake firmly from about 30mph. The car should stop straight without pulling.

• Exhaust system1.7× usual
  Fiat Doblo

  16.4% All 2004 cars

  9.7%

  Failed outright at MOT: 6.1%, against 2.8% of all 2004 cars. The rest were advisories or minor defects.

  Rough price £100–£500 (pipe or section) ClickMechanic

  At the viewing: Listen for blowing or rattling from underneath at idle, and look for black soot around joints.

• Individual direction indicators2.9× usual
  Fiat Doblo

  9.7% All 2004 cars

  3.4%

  Failed outright at MOT: 3.6%, against 1.5% of all 2004 cars. The rest were advisories or minor defects.

  Rough price £10–£80 our estimate

  At the viewing: Ask a friend to check every light while you work the switches: indicators, brake lights, fog lights and reversing lights.

Common 2004 Fiat Doblo diesel MOT failures and advisories

The share of 2004 Fiat Doblo diesel MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.

• Suspension
  51% 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.

• Lights and electrics
  49% 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
  37% 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
  36% 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.

• Exhaust and emissions
  22% 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.

• Wipers, windscreen and mirrors
  21% of testsRough price £15–£250

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

Questions to ask the seller before buying a 2004 Fiat Doblo 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 headlights? (Flagged at MOT 1.7× as often on the 2004 Fiat Doblo diesel as on other cars the same age.)
2. Any recent work on the rust around suspension or steering mountings? (Flagged at MOT 2.5× as often on the 2004 Fiat Doblo diesel as on other cars the same age.)
3. Any recent work on the braking performance? (Flagged at MOT 1.9× as often on the 2004 Fiat Doblo diesel as on other cars the same age.)
4. Can I see the service history and receipts for any big jobs?