IsItAGoodCar

Common Problems with the
2007–2012 Mazda 6 (GH)

We've identified 2 known issues that can affect the 2007–2012 Mazda 6 (GH). 2 of these are serious faults that could be expensive to repair.

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.

Estimated cost: £400–£2,000Affects: 2007–2012

Typical symptoms

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

What to inspect before you buy

  • ✓Inspect the rear arches inside and out
  • ✓Check sill ends and jacking points
  • ✓Look underneath for heavy rust around the rear subframe

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.

Most affected: 2.0 MZR-CD, 2.2 MZR-CD

Estimated cost: £300–£2,500Affects: 2007–2012

Typical symptoms

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

What to inspect before you buy

  • ✓Check the dipstick level carefully
  • ✓Ask what kind of journeys the car did
  • ✓Look for invoices for DPF cleaning or turbo work

Buying Tips for the 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.

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Other Mazda 6 (GH) Year Periods

2007–2012

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