What wheels are these?
Actually that bolt is easy to reach without removing the manifold once the subframe is removed. And I think it was me who forgot to tighten it properly back then... ::getcoat::..................which explains why it fell out, it wouldn't have been tightened. If they just took the manifold off which is simple, it would have been done right I guess.
Sorry, didn't notice your question earlier. But I think this was brought up in your project thread couple of weeks ago (for the record; it's B2015).What Braille did you go for?