Just happened to look under the front of the car this morning (was checking for coolant leaks having had to top up the expansion tank due to a check coolant level warning).

Anyways there was a drop of something on the centre of the undertray. Got some on my finger and it was a clean green/blue thin oily liquid. Will try and investigate further later, but any ideas? Power steering fluid perhaps? 2004 Vogue TD6 - Remapped
2008 Porsche Cayenne S
1998 Lotus Elise

The correct cold climate power steering fluid is a very bright almost luminous green colour. 2016 Skoda Octavia VRS Estate
<gone>2009 FF Vogue TDV8 Buckingham Blue</gone>
<gone>2015 BMW 520D SE (not my favourite car)</gone>
<gone>2009 D3 HSE Galway Green</gone>

^^^^
+1

steering fluid

Ok could be onto something then as the power steering fluid was changed last year and the lr cold climate stuff put in... 2004 Vogue TD6 - Remapped
2008 Porsche Cayenne S
1998 Lotus Elise