21-09-2020, 09:33 PM
Welcome to the club. I very recently had a failure of that little piece of solid brake line shown in your picture & brake fluid sprayed over the tank ....but the brake line itself doesn't look oily, so not sure that's your issue.
The fuel pump sits in the tank just above that point too so worth looking at that as a possible culprit too. Lift up o/s rear seat & you'll see a piece of carpet with a cut-out. Lift that & you'll see a large plastic disc which needs to be prised from the floor of the car, after which you'll be looking at the fuel pump. Could be one of the connectors or else the tank isn't properly sealed where the pump sits in it. (The GF had a 307 which leaked diesel the first time she filled the tank to the brim. Turns out someone had replaced the pump at some point & not seated the o-ring seal properly).
On petrol models the fuel filter sits just forward of the rear wheel but not sure if that's where it's located on HDi's. Not hard to check tho once you feel well enough lay on the floor to investigate!
Anyway, neither leaking brake fluid nor leaking fuel are a good thing & safety issues so don't delay in investigating.
The fuel pump sits in the tank just above that point too so worth looking at that as a possible culprit too. Lift up o/s rear seat & you'll see a piece of carpet with a cut-out. Lift that & you'll see a large plastic disc which needs to be prised from the floor of the car, after which you'll be looking at the fuel pump. Could be one of the connectors or else the tank isn't properly sealed where the pump sits in it. (The GF had a 307 which leaked diesel the first time she filled the tank to the brim. Turns out someone had replaced the pump at some point & not seated the o-ring seal properly).
On petrol models the fuel filter sits just forward of the rear wheel but not sure if that's where it's located on HDi's. Not hard to check tho once you feel well enough lay on the floor to investigate!
Anyway, neither leaking brake fluid nor leaking fuel are a good thing & safety issues so don't delay in investigating.