Diesel engine. The hoses at the oil cooler started leaking, so I have just fitted a new oil cooler and pipes. All well for the first couple of days. This morning the pipe to the rear going into the engine is dripping oil. These two pipes seem to be just a push fit held with a single metal bracket and one bolt which is tight. Presumably I shall have to take it off and try to adjust the way it sits in the hole... is this right or am I missing something? They definitely had O-rings!

Also I forgot to note which way round the pipes go, so if anyone can check their diesel that would be great - not mentioned in RAVE. The pipe coming up from the engine further forward rises higher so I have put this into the top hole of the oil cooler.

Thanks in advance.