Used car guide

2006 Suzuki SX4 petrol: common problems and MOT failures

What MOT testers find on the petrol Suzuki SX4 first registered in 2006 (petrol cars only): we looked at the 2,660 MOTs these cars had during 2023–2025. Plus known faults and what to look at before you buy one.

2,660MOTs of 2006 petrol cars, done in 2023–2025
49%pass first time (all 2006 cars: 56%)
5,400typical miles a year
1.7×the usual rate for rigid brake pipes

What goes wrong more than usual on a 2006 Suzuki SX4 petrol?

Parts flagged at MOT more often on the 2006 Suzuki SX4 petrol than on all cars registered in 2006.

  • Rigid brake pipes1.7× usual
    Suzuki SX4
    23.4% All 2006 cars
    14%

    Failed outright at MOT: 4.7%, against 2.5% of all 2006 cars. The rest were advisories or minor defects.

    Rough price £100–£400 our estimate

    At the viewing: Ask to see underneath, or check the MOT advisories: corroded brake or fuel pipes get worse every year and fail the MOT when they do.

  • Engine warning light4.1× usual
    Suzuki SX4
    11.1% All 2006 cars
    2.7%

    Failed outright at MOT: 11.1%, against 2.7% of all 2006 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.

  • Ball joint2.2× usual
    Suzuki SX4
    14.1% All 2006 cars
    6.4%

    Failed outright at MOT: 9%, against 3.1% of all 2006 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.

  • Flexible brake hoses2.1× usual
    Suzuki SX4
    11.2% All 2006 cars
    5.3%

    Failed outright at MOT: 2.1%, against 1% of all 2006 cars. The rest were advisories or minor defects.

    Rough price £50–£200 our estimate

    At the viewing: Look for cracked or bulging rubber hoses behind the wheels and in the engine bay.

  • Exhaust emissions (catalyst)2.2× usual
    Suzuki SX4
    4.8% All 2006 cars
    2.2%

    Failed outright at MOT: 4.7%, against 2.1% of all 2006 cars. The rest were advisories or minor defects.

    Rough price £175–£900 (catalytic converter) ClickMechanic

    At the viewing: Look for smoke when revving the warm engine and for an engine warning light.

Better than most

Track rod ends: 0.9% here, against 5.5% of all 2006 cars.

Common 2006 Suzuki SX4 petrol MOT failures and advisories

The share of 2006 Suzuki SX4 petrol MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.

  • Suspension
    53% 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
    47% 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
    34% 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
    33% of testsRough price £10–£80

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

  • Exhaust and emissions
    15% 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 an engine warning light.

  • Oil and fluid leaks
    12% 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.

Questions to ask the seller before buying a 2006 Suzuki SX4 petrol

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

  1. Any recent work on the rigid brake pipes? (Flagged at MOT 1.7× as often on the 2006 Suzuki SX4 petrol as on other cars the same age.)
  2. Any recent work on the engine warning light? (Flagged at MOT 4.1× as often on the 2006 Suzuki SX4 petrol as on other cars the same age.)
  3. Any recent work on the ball joint? (Flagged at MOT 2.2× as often on the 2006 Suzuki SX4 petrol as on other cars the same age.)
  4. Can I see the service history and receipts for any big jobs?

Looking at a Suzuki SX4?

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 Suzuki SX4 compared

YearMOT testsMost flagged
2025–Too new for MOT data
2024–Too new for MOT data
2023273Tyres 18%
20222,763Tyres 15%
20213,424Tyres 18%
20202,696Tyres 20%
20196,041Tyres 23%
20188,039Tyres 27%
20179,612Tyres 27%
201610,093Tyres 29%
201511,194Tyres 30%
201419,136Brakes 32%
20139,933Brakes 36%
20125,827Suspension 48%
20116,671Suspension 50%
20106,077Suspension 52%
20095,778Suspension 55%
20087,373Suspension 56%
20076,942Suspension 54%

Where this comes from: the DVSA's anonymised results for every MOT test done in Great Britain during 2023–2025, counting the MOTs of Suzuki SX4 cars first registered in 2006. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score