[ArkV50]

Hi,

I have the exact same engine, check the valve cover (that plastic top where you add oil) maybe sealing is bad and leaking. If not, then maybe it is not oil but diesel and leaking from injectors due to bad injector sealing. I can't think any place on the top of engine which can lead this much fluid around injectors.

Anyway, it looks bad and I guess previous owner knew it and cleaned a bit later sold. I don't know rules in your country, as far as I remember in Poland you can give the car back within 30 days and ask for refund. If you have that kind of rule, I guess best thing to do give it back.

 

[ArkV50]

Maybe previously added oil additive or flush engine product destroyed all seals in engine. Or this is a neglected car. Anyway fixing it won’t be easy and cheap. Replacing engine will be quite expensive as well, guess half of car’s value, maybe even more. Selling car like this will be passing your problem to someone like previous owner did it to you.

The most logical option will be replacing parts/seals that you can do it alone, for other seals go to trustworthy mechanic so at least you cut some costs.

Also, try to contact seller/dealer with photos maybe you can get small discount for the issue.

Lastly, there are “stop oil leak” products, you can use as temporary solution (not sure if they really work) while you do more research.

 

[ArkV50]

Also, could a really clogged DPF or clogged catalytic converter produce excessive pressure?

My V50 is also 2008 and DPF was clogged when I bought it. If it had clogged DPF the car puts itself to limp mode so max rev is 2900 and turbo waste-gate is open so no power at all. It should also give common error codes (so you can easy see with very cheap Bluetooth obd scanner).