I am after some advice please as to where my car is leaking from, please.

 

2010 ŠKODA Superb 2 estate.  I recently found that my spare wheel well in the boot had flooded.  The water was clear and appeared clean but was an inch deep.  I am not sure how long it has been leaking although for a few months I have been concerned that the climate was not working very well as it was struggling to clear misty window in the mornings.  It now appears that this was due to the high levels of humidity the water in the wheel well had created inside the car.

I dried the boot out and have been monitoring it but there has been very little rain recently so it stayed dry even after jet washing the car.  However, after heavy rain yesterday I have found two small pools of water in the boot this morning.   It appears to have come in from two sources nearest the rear of the car on the left and right hand side of the spare wheel well.  When I examined the boot aperture the boot seal and the rear hatch bottom edge both appear dry.  The rear hatch bottom has three drain holes and the leak source appears to be roughly in the same area but how water would get into the boot from the hatch drain holes is not clear to me.

 

Any advice would be appreciated.  Thank you.

I think the hatch drain holes are a red herring as they appear to drain onto the bumper outside the seals. 

I would suggest the leak is either from the rear light cluster seals or the rear wiper grommet.

 

Edited 25 January, 20251 yr by GreenGeorge

8 minutes ago, skomaz said:

I would suggest the leak is either from the rear light cluster seals or the rear wiper grommet.

Thank you.  Do you know whether these are replaceable items?

2 minutes ago, GreenGeorge said:

 

Ooh very good spot!

3 minutes ago, GreenGeorge said:

Thank you.  Do you know whether these are replaceable items?

 

They are usually stick on foam or similar that perishes a bit.  In the past I've sorted them by removing the lights and using a smear of windscreen sealant or silicon on them and then refitting.

I had water in my boot. Caused by cracked lense on high brake light at top of back windscreen.  Either rain, washer fluid, or both trickled down from there.  Replaced by dealer and no more wet boot.

take one of the drain grommets out of the wheel well it wont cure the water leak but will stop the build up of water

Thank for you advice.   I thought I had cured the issue by sealing the light unit in the rear boot drain channels on each:

 

But... when I checked this evening the spare wheel well was wet...  very very annoying! 

 

It was leaking in from both rear corners of the wheel well which caused me to discount the high level brake light and rear windscreen wiper grommet as they are centrally mounted.

Edited 1 March, 20251 yr by GreenGeorge