Reconditioned Peugeot 308 Gearbox

308 from 2007 to 2021: when rebuilding your own gearbox makes more sense than fitting another

The 308 spanned two generations over fourteen years, accumulating eight engine variants and around twenty distinct engine codes. That breadth of variants creates an immediate challenge: the 5-speed manual gearbox is exclusive to first-generation 1.6 HDi, 1.6 petrol and 1.2 versions, whereas every second-generation engine — 1.2 PureTech, 1.5 HDi, 1.5 BlueHDi — receives a 6-speed manual. The 1.6 HDi covers both, depending on the year and engine code: 9HZ and 9HR correspond to the 5-speed, 9HP and 9HD to the 6-speed. Mixing the two up leads directly to an incompatibility.

Rebuilding your own gearbox: when it's the right call

On the 308, having your own unit rebuilt — which involves sending us your gearbox to be reconditioned and returned to you — makes particular sense in two specific situations. First, when your gearbox already carries mechanical modifications (play adjustments, replacement of specific synchromesh rings) that you want to retain. Second, when the gearbox is hard to find on the second-hand market: this is notably the case for certain 2.0 HDi references (DW10BTED4, DW10CTED4) and for 1.6 THP versions with engine codes 5FT, 5FV, 5FX, whose production volumes are significantly lower than those of the 1.6 HDi.

Identifying the correct code before making your choice

On the 1.2, two families coexist: EB2DT and EB2DTS shared with the 1.2 PureTech, and HN01 and HNZ specific to the standard 1.2 version. The 1.5 HDi and 1.5 BlueHDi are also distinguished by their codes (YH01 (DV5RC), YHZ for the HDi; YH01 for the BlueHDi), which means engine capacity alone is not enough to identify the correct part. The engine code stamped on the block remains the only reliable starting point.