IsItAGoodCar
Reliability Guide

Common Problems with the
2002 MG TF

The TF replaced the MGF in January 2002 with coil springs instead of Hydragas, a body 20 per cent stiffer and revised induction and camshafts, sold as the 115, 120 Stepspeed, 135 and 160.

What changed for 2002

  • •Hydragas dropped in favour of conventional coil-spring suspension
  • •Torsional rigidity up 20 per cent with a new induction system and camshafts
  • •Four tunes: 1.6 115, 1.8 120 Stepspeed CVT, 1.8 135 and VVC 160

Common MOT watch-outs

  • !Corrosion in the front and rear subframes, sills and rear arches
  • !Brake pipe corrosion running along the floor pan
  • !Emissions failure from a failed catalyst or lambda sensor
4
Known Issues
2
Serious
1
Moderate
1
Minor

All Known Issues

Head Gasket Failure

SeriousEngine

Like the ZR, the TF uses the K-Series engine. The mid-engine layout makes cooling even more critical.

Est. Repair Cost: £600–£900
Warning Signs:

Rising temperature needle, Oil/Coolant mixing, Steam from the engine bay

What to Inspect:
  • Look for a stainless steel under-car coolant pipe upgrade
  • Check the expansion tank for any signs of oil
Verified by IsItAGoodCar Research Team

Subframe and Sill Rust

SeriousBodywork & Rust

The front and rear subframes, sills, and rear wheel arches are highly prone to rust. Pre-2007 Chinese-built cars are generally better protected, but all TFs need careful inspection underneath.

Est. Repair Cost: £200–£800
Warning Signs:

Visible rust on subframes, Corrosion on sills, MOT failure on structural rust

What to Inspect:
  • Inspect the subframes, sills, and rear arches on a lift
  • Check the battery tray area for rot
Verified by IsItAGoodCar Research Team

Electrical Gremlins

ModerateElectrics & Electronics

Electric windows and central locking can play up. The roof wiring loom for heated rear screens often frays and breaks over time due to repeated folding.

Est. Repair Cost: £50–£200
Warning Signs:

Electric windows intermittent, Central locking not working, Heated rear screen failure

What to Inspect:
  • Test all electrical functions
  • Check the roof wiring loom for fraying
Verified by IsItAGoodCar Research Team

Interior Trim Wear

MinorInterior & Trim

Early TFs suffer from sagging seats, cracked dashboards, and worn gear knobs. Even later Chinese-built models are not immune to premature interior deterioration.

Est. Repair Cost: £50–£300
Warning Signs:

Sagging seat fabric, Cracked dashboard, Worn gear knob and switchgear

What to Inspect:
  • Inspect the seats, dashboard, and all touchpoints for wear
Verified by IsItAGoodCar Research Team

Buying Tips for 2002 MG TF

  • Inspect the subframes, sills and boot floor on a ramp before buying
  • Check for an MLS gasket, steel dowels and stainless coolant pipes
  • Test the hood for leaks and the plastic rear screen for splits
2003–2007
Check a 2002 MG TF by Registration