The Opel Zafira B (sold as Vauxhall Zafira in the UK, Holden Zafira in Australasia, and Chevrolet Zafira in specific Latin American markets) is a compact MPV based on the Astra H platform. It retained the highly praised Flex7 seating system from its predecessor, allowing it to convert from a 7-seater to a spacious 2-seater without removing any seats. A facelift was introduced in 2008, bringing minor cosmetic updates and revised engine options (notably the introduction of the 1.7 CDTI to replace older 1.9 CDTI variants in some markets). While highly practical and dynamically sound, the Zafira B's reputation is heavily marred by the infamous M32 6-speed manual gearbox and various emissions-related issues on the diesel engines.
The Opel Zafira B is a brilliantly packaged family car let down by severe drivetrain vulnerabilities, particularly in its diesel variants. If you must buy a diesel, the 1.9 CDTI 8V (120 PS) or the later 1.7 CDTI are the safest bets, provided you have proof of a recent M32 gearbox rebuild and a healthy DPF. The 1.9 CDTI 16V (150 PS) should be avoided unless the swirl flaps have already been deleted. For most buyers doing mixed or city driving, the 1.8 VVT petrol is by far the most reliable choice, completely bypassing the DPF, EGR, swirl flap, and M32 gearbox nightmares (it uses the robust F17 5-speed manual).