Used car guide

1999 Ford Focus diesel: common problems and MOT failures

What MOT testers find on the diesel Ford Focus first registered in 1999 (diesel cars only): we looked at the 112 MOTs these cars had during 2023–2025. Plus known faults and what to look at before you buy one.

Small sample: there were only 112 MOTs of these cars during 2023–2025, so treat the percentages as rough. The known faults below don't depend on it.

112MOTs of 1999 diesel cars, done in 2023–2025
57%pass first time (all 1999 cars: 63%)
5,400typical miles a year
65%had suspension flagged

Common 1999 Ford Focus diesel MOT failures and advisories

The share of 1999 Ford Focus diesel MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.

  • Suspension
    65% 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
    42% 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
    37% of testsRough price £10–£80

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

  • 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.

  • Rust and bodywork
    22% 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
    14% 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.

Known faults on the 1999 Ford Focus 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.

  • Cambelt changes often skipped

    All engines

    A failed cambelt can wreck the engine, and because the job can cost close to what the car is worth, some owners skip it. Many specialists advise changing it more often than 100,000 miles or ten years, especially on diesels.

    At the viewing: Check the service history for a cambelt change.

    Source: What Car?: Ford Focus (1998-2004) reliability

  • Sill rust

    All engines

    The sills can corrode with age.

    At the viewing: Look along and under the sills for rust.

    Source: What Car?: Ford Focus (1998-2004) reliability

  • Electrical faults, wet lights and windscreen heater

    All engines

    Electrical parts are prone to fail, water gets into the headlights and tail lights and blows bulbs, and the Quickclear heated windscreen elements fail.

    At the viewing: Check all lights for water inside, and test the heated windscreen.

    Source: What Car?: Ford Focus (1998-2004) reliability

Questions to ask the seller before buying a 1999 Ford Focus diesel

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

  1. When was the cambelt last changed, and is there a receipt?
  2. Can I see the service history and receipts for any big jobs?

Looking at a Ford Focus?

Check the actual car: its own MOT history, mileage and what to ask the seller. Free, no sign-up.

Other years

Every year of the Ford Focus compared

YearMOT testsMost flagged
2026–Too new for MOT data
2025–Too new for MOT data
2024–Too new for MOT data
20231,106Tyres 14%
202215,220Tyres 24%
202137,645Tyres 26%
2020109,516Tyres 27%
2019164,617Tyres 29%
2018141,023Tyres 30%
2017189,550Tyres 31%
2016190,185Tyres 31%
2015223,949Tyres 33%
2014221,326Tyres 35%
2013217,909Tyres 35%
2012201,769Tyres 36%
2011189,450Suspension 40%
2010162,457Suspension 46%
2009166,345Suspension 48%
2008140,354Suspension 51%
2007121,609Suspension 52%
200688,093Suspension 52%
200565,488Suspension 55%
200447,198Suspension 58%
200335,763Suspension 53%
200228,429Suspension 54%
200116,460Suspension 53%
20007,477Suspension 57%
1998243Suspension 65%

Where this comes from: the DVSA's anonymised results for every MOT test done in Great Britain during 2023–2025, counting the MOTs of Ford Focus cars first registered in 1999. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score