2005 Proton Jumbuck: common problems and MOT failures

What goes wrong more than usual on a 2005 Proton Jumbuck?

Parts flagged at MOT more often on the 2005 Proton Jumbuck than on all cars registered in 2005.

• Rust around suspension or steering mountings2.4× usual
  Proton Jumbuck

  13.3% All 2005 cars

  5.5%

  Failed outright at MOT: 9.5%, against 2.6% of all 2005 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.

Common 2005 Proton Jumbuck MOT failures and advisories

The share of 2005 Proton Jumbuck MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.

• Suspension
  42% 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
  36% 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
  32% 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
  23% 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.

• Tyres
  22% 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.

• Oil and fluid leaks
  21% 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 2005 Proton Jumbuck

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

1. Any recent work on the rust around suspension or steering mountings? (Flagged at MOT 2.4× as often on the 2005 Proton Jumbuck as on other cars the same age.)
2. Can I see the service history and receipts for any big jobs?