IsItAGoodCar
Reliability Guide

Common Problems with the
2003 Saab 9-3 NG

The 9-3 NG (New Generation) launched in 2003 on the GM Epsilon platform, replacing the much-loved OG model. Early cars had the most CIM (Column Integration Module) failures, causing key non-recognition and steering lock issues. The 1.9 TiD diesel was introduced later and requires strict timing belt and water pump changes every 60,000 miles.

What changed for 2003

  • •All-new GM Epsilon platform
  • •CIM (Column Integration Module) introduced — a common failure point
  • •1.9 TiD diesel added from 2001 in the OG but available from early NG production
  • •Improved interior and safety over the OG
  • •Front subframe corrosion begins to appear on UK cars

Common MOT watch-outs

  • !CIM failure — key not accepted, stability control errors
  • !Front coil springs snapping on UK roads
  • !Front subframe corrosion
  • !Rear suspension rose bush wear
2
Known Issues
1
Serious
1
Moderate
0
Minor

All Known Issues

CIM (Column Integration Module) Failure

SeriousElectrics & Electronics

The module in the steering column fails, leading to key non-recognition or stability control errors.

Est. Repair Cost: £500–£800
Warning Signs:

"Key Not Accepted", "Stability Control Failure", Indicator non-cancelling

What to Inspect:
  • Check for any steering/electronics warning lights
  • Test all column-mounted controls
Verified by IsItAGoodCar Research Team

Rear Suspension "Rose Bush" Wear

ModerateSuspension & Chassis

The outer bushings on the rear trailing arms wear out, causing the rear wheels to "steer" the car.

Est. Repair Cost: £150–£300
Warning Signs:

Rear end wandering over bumps, Uneven rear tyre wear, Knocking from the rear

What to Inspect:
  • Pry at the rear bushes to check for play
  • Check tyre wear patterns
Verified by IsItAGoodCar Research Team

Buying Tips for 2003 Saab 9-3 NG

  • Check that both keys are present and functional — a lost key without a working original requires a new CIM costing £500+
  • Inspect the front subframe for rot, especially on cars from northern or coastal regions
  • Listen for a "clunk" from the rear during test drive — worn rose bushes
20022004–2006
Check a 2003 Saab 9-3 NG by Registration