2012 Mazda 6 (GJ)
Browse our directory of 2012 Mazda 6 (GJ) vehicles. Access instant MOT history reports, tax status, and reliability insights for any registration listed below.
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Common Problems & Reliability
The 2012 Mazda 6 (GJ) has 3 known issues. 2 of these are classified as serious faults that could be expensive to repair.
2.2 SkyActiv-D Oil Dilution & DPF Stress
SeriousFrequent interrupted regenerations let diesel contaminate the oil, accelerating timing chain, turbo and bottom-end wear.
Symptoms: Rising oil level on dipstick, DPF warning light...
Est. repair cost: £500–£4,000
Camshaft Wear (Early Diesels)
SeriousLike the CX-5, early 2.2 diesel 6s suffered from premature camshaft wear leading to metal contamination in the oil and turbo failure.
Symptoms: Sudden loss of power, Turbo whine...
Est. repair cost: £2,000–£4,000
Bose Speaker Corrosion
MinorMoisture can enter the front door cavities and cause the Bose speaker coils to rust, leading to audio distortion.
Symptoms: Crackling or popping from front speakers, No sound from one side
Est. repair cost: £100–£250
Buying Tips for the 2012 Mazda 6 (GJ)
- ✓The 2.0 SkyActiv-G petrol is the safe bet; be very wary of 2.2 diesels used for short trips.
- ✓Check the saloon boot floor and rear light seals for damp.
- ✓Make sure the i-ELOOP / i-stop system works properly and shows no charging warnings.
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