Mazda 5 (CW) Common Problems & Reliability
The second-generation Mazda 5 (CW, 2010–2015) is an underrated MPV that retains the excellent sliding doors of its predecessor while adding Mazda's "Nagare" flow-inspired styling and genuinely engaging handling. Unlike most people carriers, the Mazda 5 feels surprisingly agile through corners, with precise steering and a chassis that prioritises driver engagement over outright comfort. In the UK, it occupies a useful niche for families who need seven-seat practicality but refuse to accept a boring driving experience, sitting in insurance groups 14–21 depending on engine and trim. Mazda's mechanical reliability is generally strong, with the 2.0-litre petrol engine being the most durable choice, though the PSA-sourced 1.6 diesel requires careful DPF management. Sliding doors are a godsend for families with young children in tight car parks, and the interior is well-built if somewhat plain by modern standards. Running costs are reasonable, with the petrol returning around 35mpg and the diesel achieving closer to 50mpg on motorway runs. The Mazda 5 is a practical, well-engineered MPV that rewards informed buying.
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Detailed fault breakdown, symptoms, and estimated repair bills by production year.
Most Common Mazda 5 (CW) Faults & Repair Costs
Rear Suspension Bush & Damper Wear
The Mazda 5 is heavy and tends to wear through its rear suspension components quickly, leading to poor handling and tyre wear.
Thumping or knocking from the rear, Uneven tyre wear, Vibration at speed
- Inspect the inner edges of the rear tyres
- Listen for suspension noise on the test drive
1.6 Diesel DPF & Oil Dilution
The PSA-sourced diesel engine is prone to DPF blockages if used for short trips, which can lead to diesel contaminating the engine oil.
DPF warning light, Rising oil level, Limp mode
- Check the service history for frequent oil changes
- Verify the oil level is not above the maximum mark
Sliding Door Alignment & Motor Issues
Over time, the sliding doors can drop or become misaligned, causing wind noise or failure of the electric closing mechanism.
Door hard to close, Wind whistle at speed, Electric door reversing when closing
- Ensure the doors sit flush with the body when closed
Buying a used Mazda 5 (CW)? Always check for hidden finance and write-off history.
Mechanical problems are only half the battle. Over 1 in 3 UK used cars checked have unpaid finance or accident write-off records that could cause you to lose the car or thousands in value.