Mazda Mazda2 II (DE) (2007 – 2014)

Reliability score : 7.2/10

The second-generation Mazda2 (DE series), also known as the Demio in Japan, marked a radical departure from its mini-MPV predecessor. Built on the Mazda D-platform (shared with the Ford Fiesta Mk6), it adopted Mazda's 'Gram Strategy' to shed around 100 kg, resulting in a highly agile, lightweight, and fun-to-drive B-segment hatchback. A mid-cycle facelift was introduced in 2010, bringing suspension tweaks, interior upgrades, and Euro 5 compliant engines. While Mazda's in-house naturally aspirated petrol engines (MZR) are renowned for their bulletproof reliability, the diesel variants (MZ-CD) were sourced from the PSA/Ford joint venture (1.4 and 1.6 HDi/TDCi). These diesel engines require meticulous maintenance and are prone to well-documented, potentially catastrophic failures if neglected

✅ Strengths

Exceptional chassis dynamics and steering feel (shares Fiesta DNA)
Very lightweight, making it agile and efficient
In-house petrol engines (MZR) are incredibly reliable
Slick and precise manual gearbox
Low running costs and cheap insurance

⚠️ Weaknesses

PSA-sourced diesel engines (MZ-CD) are fragile and require meticulous maintenance
High risk of catastrophic turbo failure on diesels due to oil starvation
Thin paint quality, prone to stone chips and scratches
Poor sound insulation (high wind and road noise at highway speeds)
Interior plastics are hard and prone to scratching
Rust protection on the undercarriage is subpar in salty climates

🎯 Verdict

The Mazda2 (DE) is a fantastic, reliable, and fun-to-drive supermini—provided you buy a petrol version. The PSA-sourced 1.4 and 1.6 MZ-CD diesel engines completely contradict Mazda's reputation for reliability. They are plagued by injector seal leaks, turbo oil starvation, and DPF issues. Unless you are buying a diesel with a fully documented, meticulous service history (oil changes every 10k km) and you exclusively drive on the highway, the diesel variants should be AVOIDED. If you must have a Mazda2, seek out the 1.3 or 1.5 MZR petrol models, which are virtually indestructible and perfectly suit the car's lightweight, agile nature.