Thread: LWB Series 3 Brake Switch mechanism

yeah spray some wd 40 in to it and with some persistence the pin will push inwards and then the knob will come out. be careful not to break the plastic dash surround. I broke mine

Cheers Rod

Hello again from Brisbane.

My understanding is that the knob is nigh on impossible to replace new these days - here, the UK or anywhere else. So, be careful not to break it.

Cheers,

Originally Posted by Andrewdonald

I am trying to remove the switches from the instrument cluster on my series 3 and have gotten stuck on the windscreen wiper switch, I can see what looks like a grub screw in the plastic switch however it has no head to get a screwdriver onto, can anybody tell me how to get the know off.

Its a locking pin.

You push it in with a fine punch or screw driver and pull the knob off (it could be gummed up).

The other option is to make a tool with a fine sharpened end blade about 2mm wide (a little less than the size of the flats on the hex shaft) and short leg about 3mm-4mm then a right angle with a long shaft to manipulate. You feed the blade into the gap at the base of the knob on the same flat in the hex as the locking pin. With a flat screw driver on the other side put a little pressure under the knob to slide it up the shaft and then add some pressure to your special tool to prize/stretch up the plastic below the pin. Continue to add pressure on the other screwdriver to slide the knob off the switch shaft.

If you can't get a replacement switch/knob, you can use a reproduction Lucas toggle switch for the wipers on a SIIa and many other English brands from the 60s and 70s. It won't give you the push for the washers, but many SIII had a separate button for the washers anyway.

Thanks WD40 and a very tentative tap from hammer and pin punch moved the pin backe enough to allow the handle to come off, I came across a replacement on an American site $130 for replacement switch + postage. Switch is now secured in cotton wool locked away securely!!!!!