Hello i’m having trouble figuring out why water in entering my boot cavity

Im not having any tail light issues at least not yet but would like to find a solution before it gets there, I seen post related to this but my tail lights aren’t going out so i’m ruling that out right now

Could it be the boot seal or the rear window washer if the pipe has come loose or it leaking around the wiper motor 

5 hours ago, Steve Q said:

Could it be the boot seal or the rear window washer if the pipe has come loose or it leaking around the wiper motor 

my guess is maybe the boot seal as this model doesn’t have a rear wiper 

31 minutes ago, Audilol said:

my guess is maybe the boot seal as this model doesn’t have a rear wiper 

Could you sit in the boot and get someone to use the hose to see if you can see where the water is coming in? 

9 hours ago, Steve Q said:

Could you sit in the boot and get someone to use the hose to see if you can see where the water is coming in? 

I don’t but I plan on taking off the trim from the trunk and setting my phone up to record to see if it captures anything 

Noting your location, not unreasonable to determine the boot rubber has experienced extremes of heat. Actually getting in the boot isn't as daft as you think. I don't think a camera will pick up the detail. This video helps illustrate the lengths you sometimes need to go to. You will need to strip out trim if water enters the boot but you can't determine the location. These guys are good - look a their channel and you'll see their rebuild of a cheap S8.

 

7 hours ago, spartacus 68 said:

Noting your location, not unreasonable to determine the boot rubber has experienced extremes of heat. Actually getting in the boot isn't as daft as you think. I don't think a camera will pick up the detail. This video helps illustrate the lengths you sometimes need to go to. You will need to strip out trim if water enters the boot but you can't determine the location. These guys are good - look a their channel and you'll see their rebuild of a cheap S8.

 

time to get to work 🤕

my A6 started with water getting  boot lid which caused condensation in the rear n/s boot light and the indicator started playing up replaced the light  but after 2years it has started again i  have removed the rubber bungs at the bottom of the boot lid to stop the water getting inside as all the electrics are by the spare wheel . i am going to replace the seal and also use automotive silicon will update if this works

On 2/11/2026 at 2:20 PM, Bullseye said:

my A6 started with water getting  boot lid which caused condensation in the rear n/s boot light and the indicator started playing up replaced the light  but after 2years it has started again i  have removed the rubber bungs at the bottom of the boot lid to stop the water getting inside as all the electrics are by the spare wheel . i am going to replace the seal and also use automotive silicon will update if this works

i have fitted new seals on bootlid lights and put a thin bead of automotive silicon both on the seal and on the bodywork where the seal fits the last 3 days weve seen lots of heavy rain ond have had no water in boot cavity hope this helps