1999 Volvo S40: common problems and MOT failures
What MOT testers find on the Volvo S40 first registered in 1999: we looked at the 405 MOTs these cars had during 2023–2025. Plus known faults and what to look at before you buy one.
Small sample: there were only 405 MOTs of these cars during 2023–2025, so treat the percentages as rough. The known faults below don't depend on it.
What goes wrong more than usual on a 1999 Volvo S40?
Parts flagged at MOT more often on the 1999 Volvo S40 than on all cars registered in 1999.
- Number plate lights2.9× usualVolvo S4015.3% All 1999 cars5.3%
Failed outright at MOT: 4.9%, against 1.3% of all 1999 cars. The rest were advisories or minor defects.
Rough price £5–£40 our estimateAt the viewing: Check the number plate lights work and the plates are clean and legal.
- Seat belts5.2× usualVolvo S409.9% All 1999 cars1.9%
Failed outright at MOT: 1.2%, against 0.5% of all 1999 cars. The rest were advisories or minor defects.
Rough price £80–£250 our estimateAt the viewing: Pull each seatbelt sharply. It should lock and retract smoothly.
- Sidelights2.8× usualVolvo S4012.6% All 1999 cars4.5%
Failed outright at MOT: 9.1%, against 3.8% of all 1999 cars. The rest were advisories or minor defects.
Rough price £10–£80 our estimateAt the viewing: Ask a friend to check every light while you work the switches: indicators, brake lights, fog lights and reversing lights.
- Brake pads2.2× usualVolvo S4010.6% All 1999 cars4.9%
Failed outright at MOT: 2%, against 1% of all 1999 cars. The rest were advisories or minor defects.
Rough price £75–£175 (one axle) ClickMechanicAt the viewing: Listen for squealing or grinding when braking, and look through the wheel at how much pad is left.
- Headlight aim2.2× usualVolvo S4010.4% All 1999 cars4.7%
Failed outright at MOT: 10.4%, against 4.7% of all 1999 cars. The rest were advisories or minor defects.
Rough price £20–£60 our estimateAt the viewing: Park facing a wall at night or in a garage and check both headlight beams sit level. Aim is a cheap adjustment.
Engine oil leaks: 5.4% here, against 14.9% of all 1999 cars.
Common 1999 Volvo S40 MOT failures and advisories
The share of 1999 Volvo S40 MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.
- Lights and electrics49% of testsRough price £10–£80
At the viewing: Ask a friend to check every light, including brake lights and indicators, while you operate them.
- Brakes46% 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.
- Suspension39% 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.
- Tyres28% 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 emissions14% 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 mirrors9% 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 1999 Volvo S40
Ask before you travel to see it. A seller who knows the car will have answers, and receipts.
- Any recent work on the number plate lights? (Flagged at MOT 2.9× as often on the 1999 Volvo S40 as on other cars the same age.)
- Any recent work on the seat belts? (Flagged at MOT 5.2× as often on the 1999 Volvo S40 as on other cars the same age.)
- Any recent work on the sidelights? (Flagged at MOT 2.8× as often on the 1999 Volvo S40 as on other cars the same age.)
- Can I see the service history and receipts for any big jobs?
Looking at a Volvo S40?
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 Volvo S40 compared
| Year | MOT tests | Most flagged |
|---|---|---|
| 2013 | 106 | Suspension 43% |
| 2012 | 3,824 | Suspension 36% |
| 2011 | 4,345 | Suspension 39% |
| 2010 | 5,823 | Suspension 42% |
| 2009 | 7,152 | Suspension 41% |
| 2008 | 8,705 | Suspension 44% |
| 2007 | 5,480 | Suspension 46% |
| 2006 | 5,035 | Suspension 46% |
| 2005 | 4,345 | Suspension 50% |
| 2004 | 3,475 | Suspension 46% |
| 2003 | 1,984 | Brakes 47% |
| 2002 | 1,348 | Brakes 50% |
| 2001 | 960 | Brakes 45% |
| 2000 | 649 | Lights and electrics 43% |
| 1998 | 382 | Suspension 51% |
| 1997 | 209 | Suspension 46% |
| 1996 | – | Too few tests |
Where this comes from: the DVSA's anonymised results for every MOT test done in Great Britain during 2023–2025, counting the MOTs of Volvo S40 cars first registered in 1999. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score