Bought a 2006 220d and 2 weeks later i realise the heater core is leaking and carpet soaked behind drivers seat. I used K-seal which seems to have slowed it down but i will have to replace heater core.
Has anyone done this or have any information/Diagrams on how to do it?

 

You should search or post to the IS forum as it gets a lot more traffic. https://www.clublexus.com/forums/is-...2006-2013-163/

If you are lucky it may just be a clogged air conditioner drain https://www.clublexus.com/forums/gs-...-ac-drain.html

That is an expensive repair because of the amount of time involved taking it out and putting everything back together. I am speaking of heater cores in general.