The Mercedes-Benz GLA (X156 Generation) marks the entry of the star brand into the highly competitive premium compact SUV segment. Based on the MFA platform (shared with the A-Class W176 and CLA), it resembles a raised sedan more than a true off-roader. Launched in late 2013, it received a facelift in 2017 (LED headlights replacing bi-xenons, redesigned bumpers, modernized multimedia screen, and Apple CarPlay/Android Auto integration). In terms of reliability, the GLA X156 is generally a good student, but it requires rigorous monitoring, particularly concerning its 7G-DCT dual-clutch gearbox and the emission control peripherals on diesel engines (which represent the majority of sales in Europe).
The Mercedes GLA X156 is a relevant choice for those looking for the Mercedes badge and design in a compact format, without needing a large loading volume. For buyers targeting Diesel: The GLA 200 d (OM651) is the best power/reliability compromise, provided that the absence of cold chain noise and the 7G-DCT gearbox oil change history are scrupulously checked. The GLA 180 d is economical but its Renault-sourced engine requires timing belt replacement. Avoid diesel models if you only drive in the city (guaranteed clogging). In this case, opt for a GLA 200 petrol, which is more suitable and very reliable despite some thermostat weaknesses.