1994 BMW 3 Series petrol: common problems and MOT failures

What goes wrong more than usual on a 1994 BMW 3 Series petrol?

Parts flagged at MOT more often on the 1994 BMW 3 Series petrol than on all cars registered in 1994.

• Suspension arm bushes and joints2.1× usual
  BMW 3 Series

  8.2% All 1994 cars

  3.9%

  Failed outright at MOT: 1.8%, against 0.7% of all 1994 cars. The rest were advisories or minor defects.

  Rough price £120–£180 (one arm) ClickMechanic

  At the viewing: Listen for clunks over bumps and feel for the steering wandering. Worn arm bushes show as cracked rubber near the wheels.

• Ball joint2.1× usual
  BMW 3 Series

  7.7% All 1994 cars

  3.7%

  Failed outright at MOT: 2.3%, against 1.2% of all 1994 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.

• Exhaust emissions (catalyst)1.9× usual
  BMW 3 Series

  6.8% All 1994 cars

  3.6%

  Failed outright at MOT: 6.7%, against 3.5% of all 1994 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.

• Anti-roll bar link bushes2.1× usual
  BMW 3 Series

  3.7% All 1994 cars

  1.8%

  Failed outright at MOT: 0.9%, against 0.3% of all 1994 cars. The rest were advisories or minor defects.

  Rough price £100–£280 (pair of drop links) Checkatrade

  At the viewing: Drive slowly over bumps and listen for a knock or rattle from the front. Worn anti-roll bar links are a cheap fix.

Common 1994 BMW 3 Series petrol MOT failures and advisories

The share of 1994 BMW 3 Series petrol MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.

• Brakes
  34% 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.

• Suspension
  33% 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
  24% 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
  20% 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
  16% 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.

• Exhaust and emissions
  14% 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.

Questions to ask the seller before buying a 1994 BMW 3 Series 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 suspension arm bushes and joints? (Flagged at MOT 2.1× as often on the 1994 BMW 3 Series petrol as on other cars the same age.)
2. Any recent work on the ball joint? (Flagged at MOT 2.1× as often on the 1994 BMW 3 Series petrol as on other cars the same age.)
3. Any recent work on the exhaust emissions (catalyst)? (Flagged at MOT 1.9× as often on the 1994 BMW 3 Series petrol as on other cars the same age.)
4. Can I see the service history and receipts for any big jobs?