Some time this summer I'd like to replace the oil-cooler (small mist leak).
This may sound dumb but I've never done this job before but, is it wise/essential to drain the engine oil first (probably at service time) to avoid any oil-a-gushin' - or is there only a little leakage from the pipes even when the sump is full?
Also does the cooler need filling with oil before connecting the return pipe - is it possible to cause an air-lock in the oil system?

Lastly if I'm feeling bold I might change the flexible oil-pipes as well . Don't have a hoist but can jack the front a reasonable height, is that practical DIY?

Thanks.

 

I changed my oil cooler without draining the oil, the pipes sit above the oil level so there is little spillage.


Don't know about your hose question but would imaging it is possible.

 

I would also recommend flipping the brackets so that the cooler sits up higher. I scrapped mine a couple of time before flipping the brackets. I had a small leak and used weldbond on it which fixed the leak until I scrapped it again. Then I put in a new one and flipped the brackets. No issues since. Also, very little oil came out when I changed it.

 

Thanks guys. Knowing what to expect gives me that extra bit of confidence