IsItAGoodCar
Reliability Guide

Common Problems with the
2007 Mazda 6 (GH)

The GH Mazda 6 launched in the UK with sharp handling and stylish design, offering a driver-focused alternative to the Ford Mondeo and VW Passat. The petrol engines proved exceptionally reliable.

What changed for 2007

  • •UK launch of second-generation Mazda 6
  • •Sharp handling and stylish Kodo design
  • •1.8, 2.0, and 2.5 naturally aspirated engines
  • •Saloon, Hatchback, and Estate body styles

Common MOT watch-outs

  • !Rear arch and sill corrosion
  • !Steering rack play
  • !Bose amplifier moisture damage
2
Known Issues
2
Serious
0
Moderate
0
Minor

All Known Issues

Rear Arch, Sill and Underbody Corrosion

SeriousBodywork & Rust

GH cars can rust around the rear arches, sill ends and underbody mounting points long before the cabin or paintwork looks especially shabby.

Est. Repair Cost: £400–£2,000
Warning Signs:

Bubbling paint on rear arches, Flaky underseal, MOT corrosion advisories

What to Inspect:
  • Inspect the rear arches inside and out
  • Check sill ends and jacking points
  • Look underneath for heavy rust around the rear subframe
Verified by IsItAGoodCar Research Team

Diesel DPF and Oil Dilution Trouble

SeriousEngine

Short-trip use can overload the DPF regeneration strategy on the 2.0 and especially 2.2 diesels, leading to rising oil levels, warning lights and turbo stress.

Est. Repair Cost: £300–£2,500
Warning Signs:

DPF warning light, Rising oil level on dipstick, Limp mode after town use

What to Inspect:
  • Check the dipstick level carefully
  • Ask what kind of journeys the car did
  • Look for invoices for DPF cleaning or turbo work
Verified by IsItAGoodCar Research Team

Buying Tips for 2007 Mazda 6 (GH)

  • ✓Inspect the rear arches, sill ends and rear subframe properly; tidy-looking cars can still be crusty underneath.
  • ✓A petrol is the easy recommendation. Diesel cars need evidence of regular long runs and prompt oil servicing.
  • ✓Check the boot floor, door bottoms and MOT history for repeat corrosion advisories.
2008–2009
Check a 2007 Mazda 6 (GH) by Registration