My high level brake light is completely out on my pre FL 2008 Octavia Estate.   I know they are not monitored by the bulb out system, but I have also checked VCDS for fault codes in the CECM and found no fault codes.  I'm suspecting water ingress to the unit and will remove to do a voltage test as my next step (to rule a faulty unit in or out), but shouldn't there be a fault code here?

 

Thanks

Adam

I took light off in my lunch hour today and it appears a voltage is getting through so looks like unit is goosed. Presumably no fault code as there is still a complete circuit I guess.

 

My 2009 pre fl is monitored, it keeps telling me to check it.

The high level brake light?

Had  this problem on my old mk 1 octavia , took the unit out and , checked with 12 volt on each bulb , found a few dead replaced with some i got off ebay , and the unit then worked again , maybe if 1 or 2 go , it cuts all the rest out , had to buy a pack of about 100 only a few quid and a bit of trial and error to find the duff ones to replace . may help 

The estate uses LEDs in a complete unit, as did the Mk 1 estate.

Thanks all. Yes it is a sealed unit on the estate. Looking at mine there is some water in it so its probably goosed and I have ordered a replacement. I'm just surprised there's no fault code.

Edited 10 November, 20178 yr by adamal

Yeah the high level one, it's intermittent at the moment but it says check high level brake light, this is on estate also, had a quick look but no idea how it comes off?

Here are the "how to" instructions in a previous post. Scroll through and you will find the instructions about half way and more comments further down.

 

https://www.briskoda.net/forums/topic/250324-high-level-brake-light-estate-bulb-out/?tab=comments#comment-3439185