Hi there, Had a look around the forum and couldn't seem to find a topic relating to this so apologies if its a duplicate question. Having a few misfiring problems and after inspecting the engine bay the HT leads and coilpack look like they have seen better days. My current unit has "BERU 0 040 402 003" stamped on it but a breakers nearby has a working unit out of an almost identical (from what I can tell) Lupo stamped "TEMIC 032 905 106B" so I suppose my question is are these interchangable or do they possess different circuitry? I'm hoping they are just from two different suppliers but work in the same way as physically they look identical in terms of size and fitment. Anyone who can shed any light on this would be of great help! Thanks for reading.