Possible underside leak?

[BromGo]

Hi there - strange patch on the driveway, about 2m from front of Bongo towards rear, pretty central. What are the possible culprits? Petrol? Wouldn’t have thought petrol could slow leak but maybe with temperature fluctuations.

Water spots near front wheel and rear normal, but central I’m confused.

[g8dhe]

You probably have the undercover on, this has an escape hole in that position so the fluid can becoming from anywhere under the engine bay but only leaks out in that position to fall on the floor! You need to sample the fluid that has appeared for colour and texture and then compare with the engine coolant, oils used in the vehicle to identify which source it is from.

[Bob]

Spot on from Geoff, a tray and some newspaper can help.

[BromGo]

Thanks both; I’ll get a tray under there this week

[g8dhe]

The other thing to bear in mind is that it can be a mixture of everything that has dripped from the engine since it left the factory as it has a "foam" layer to hold drips! I have taken the undercover off mine and hosed it down with detergents in the past but finding a suitable bit of waste land to do it on with a hose can be interesting! Its best to put the cover back on afterwards as it also acts as a sound barrier for road noise coming up thru the engine bay.