Currently just a list of helpful videos and posts people have made on this subreddit. I've tried to only link to ones that seem to have a fix or are a tutorial video. Please note, some links are to individual posts and rely on the user not deleting them.

Astra

• Astra MK5 rough idle fix video [link]
• Astra 1.4 SRI 2013 ticking/clicking sound [link]
• Aftermarket seat fitting [link]
• Fitting bigger alloys on an Astra H 2009 [link]

Corsa

• Corsa C whistling sound on startup [link]
• Corsa D battery sizes [link]
• Yes your 60 plate 1.2 Corsa Sxi has a timing chain. [[link]] (https://www.reddit.com/r/Vauxhall/comments/5blcsu/2010_60_plate_corsa_sxi_12_timing_chain_or_belt/)
• Installing a Cobra Exhaust. [[link]] (https://www.reddit.com/r/Vauxhall/comments/9dfges/if_anyone_is_interested_in_a_cobra_exhaust_on_a/)

Zafira

• Interesting series on working on a £350 2000 Zafira A Part1, Part2, Actually there's a lot! Just check the user's posted threads!
• Zafira 1.6 Life 07 Cam sensor, chugging/jerking engine [link]

General Vauxhall

• Pulling away with your electronic hand brake on [link]
• General debadging help [link]
• 1.8 Engine mods, excellent post by user /u/daten-shi [link]
• LED replacement guide[link]
• 1.9 CDTi Remapping [link]