Oily substance near foot area

[lexprpex]

Hey everyone!
My Seat Leon 5F 1.6 TDI's got a problem; the carpet by the gas pedal is oily. I took off some panels and kinda figured out where it's leaking from. Has anyone seen this before? Any ideas what it could be?

Thanks!

Aleks

 

[Pinky]

Hi Aleks

Coolant from the heater matrix or pipework ?

Pop a clean finger in the header tank and see if it feels the same.

 

[SuperV8]

Your heater matrix is behind this black rectangular panel. The green rubber looks disturbed so some one has been in there before.

The aluminum pipe feeds coolant (which is red/pink and oily) through your matrix so suspect it would be coolant on your carpet.

Have a feel around the pipes to see if you can feel any leak? There is an o-ring in each fitting which could be leaking.

 

[nd-photo.nl]

What @SuperV8 said

 

[lexprpex]

Thank you, everyone. I believe it is coolant; I tasted it, and it was sweet. It is a bit oily around the pipe, but I'm unsure if I should be worried about such a small leak.

 

[SuperV8]

It has clearly been disturbed in the past - probably for a new heater matrix.
If you're lucky - it could be just some residue from that job? you could clean it all - and monitor in a day or two after some engine cycles (hot & cold running).

There is an oring and clamp which would be my guess - if it is weeping/leaking yes you will need to fix.
The clamp is a bit fiddly and others on here reported struggling re-fitting it. Could be just not snugged up enough? or you may need a new oring.