airship17

Regarding the lubrication point, you can get spray contact lube (like Ambersil AGL1) which could perhaps be shot in via the same hole - alternatively some contact cleaners are "contact cleaner and lubricant" so they are designed for exactly this - I guess the sovent cleans the crap off then evaporates leaving the grease behind. Typically used for complex switches that can't be disassembled. If I'd had any I would have used that, but I just had the contact cleaner. A good reason not to take the wheel off is that IIRC the bolt only has a few lives before you're supposed to replace it. I had to take mine off to replace the clock spring previously so one life is already used.

I had a similar problem, 2015 Fabia estate. The wipers were on intermittent even when set to off, so I couldn't turn them off. I read some of the comments on the youtube video and managed to fix it without needing to do the entire steering-wheel-off thing. I didn't bother disconnecting the battery but it wouldn't matter if you did. You have to turn the wheel so I left it on. Suggest you watch the above video anyway for background, then see below: Remove the casing round the steering column (one bolt underneath, two on the end facing you, turn the wheel 90deg to access these). The bottom half comes off, the top half remains attached by a flap of trim cloth. Remove the rubbery trim from round the ignition key hole, and carefully remove the little trim thingy from the base of the stalk - the tang nearest you can be pulled very gently toward you with the end of a little flatblade screwdriver, then the trim comes off. Its very fragile so watch out. Remove the connector from the back of the wiper stalk (he shows how in the video). Until you plug it back in, I suggest you don't turn the ignition on in case it logs a fault. Now, if you look carefully you will see a little vertical slot in the side surface of the casing that the stalk mounts into, near where the connector is located. If you peer in you can see the glint of the contacts in the back of the stalk base. It looks like this slot is there so you can clean the contacts without taking it all to bits. I do NOT suggest you poke anything into the slot - all you need to do is use some contact cleaner spray and squirt it into the slot using the tube on the aerosol. In the pic attached I am pointing at the slot with a screwdriver, but repeat - do not poke anything into the slot. Or if you do, don't blame me if you break something. Give it a good blast with contact cleaner, and wiggle the stalk, repeat until convinced. I also shot some cleaner in around the base of the stalk. You could probably use WD 40 if you really can't get some contact cleaner, but it is readily available and very useful for, well, cleaning contacts. Plug the connector back in, and test it. For me, that fixed it