Quick fix (not the best choice) - WD40 in the keyhole. Might get the key to work, but will not lube the lock mechanism.
Delayed gratification - Use white lithium grease (spray can w/ straw). Takes a day or two to penetrate, but will lube the lock long-time.
Is the key bent? Go to a VW dealer and have them cut you a spare key using your Golf's VIN. Was the hatch/lock cylinder replaced? You'll need to get that lock "keyed" to so it can open with the same key as ignition/doors.
If you need to get something out of the boot/trunk, fold the back seats down and crawl in there! With some light you should be able to see the emergency internal hatch release and open the hatch from the inside.
The boot, or trunk lid as we call it, is unlocked with the doors or trunk release button. Sometimes the linkage comes apart and the only way to open it is to remove the interior trunk lid trim by crawling into the trunk from the back seat and opening it manually. You will need a philips screw driver or a T20 torx...i don't remember which one. Remove the screws in the moulded handles and then pull firmly. It's gonna we awkward, then you use your finger and unlatch the trunk.
2013 GLI Autobahn, 2010 Tiguan 4mo.
This post does not reflect the views or opinions of Volkswagen AG or any individually owned dealer or entity.
This post is simply my personal, not professional, opinion.
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I have used the fix it works on any MK IV Jettta/Bora. After buying the dealer part's 2 times same defective part breaks over and over..... I found this one that is a very solid part so you wont have to do it again...
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