The Opel Astra J (4th generation) marks a complete break with the H generation. Based on General Motors' Delta II platform (shared with the Chevrolet Cruze), it moves upmarket with a refined interior finish, an elegant design, and technological equipment unprecedented for its time (AFL+ headlights, AGR ergonomic seats, FlexRide adaptive suspension). Its main structural flaw is its excessive weight (often over 1,400 kg), which penalizes performance, fuel consumption, and prematurely wears out the running gear. Although the demand here focuses on diesel engines (very popular in this generation), the Astra J offered a plethora of engines to try and compensate for its bulk. The restyling (facelift) occurred in late 2012, bringing slight aesthetic touches and the gradual introduction of new eng
The Opel Astra J is an excellent road car, comfortable and well-finished, but its high weight dictates the choice of engine. For diesel, the choice is complex but binary: 1) If you are looking for absolute robustness without worrying about noise, the 1.7 CDTI is the best choice, provided you scrupulously check the M32 gearbox. 2) If you want enjoyment and power, the 2.0 CDTI (160/165 hp) is fantastic and benefits from the solid F40 gearbox, BUT you absolutely must have the oil strainer seal replaced upon purchase if it hasn't been done. The 1.3 CDTI is to be avoided (too weak) and the 1.6 CDTI is risky (poorly designed timing chain). For a used car, prioritize a post-2012 (facelifted) model with a clear service history.