E39 530i water in oil

[kodos]

The initial message was deleted from this topic on 19 June 2012 at 01:01

[miniman]

I wouldn't worry about the mayo after a short journey, quite normal. Might be worth replacing the thermostat if the temp is wandering around a bit, although could simply be an airlock.

[miniman]

I'm no expert but I would say it would be there immediately.

[E30M3SE]

Take it for a 45min spirited drive and report back on the 'mayo' situation, a virtual score says there isn't any.

It's just condensation from your very short journey.

[Fox-]

I drive 5 miles to work and 5 miles home. Throughout the winter my car has the sort of mayo under the filler cap that would make many run to the internet screaming.

Checking it again after a proper long run always shows it nice and clear - these are big engines and they do take a while to warm up - if they dont, hello mayo.

Don't worry about it.

[MattOz]

My 330i used to have a fair bit of mayo on the filler cap from time to time. Short journeys will do it. Sounds pretty normal to me.

[sparks_E39]

I can confirm that my E39 does this and has for 3 winters. If it were a problem I'm sure it would have made itself known by now. But yes I shat myself when I first saw it