any advice please. my 09 2.7 TDV6 has developed a high pitched whine on start up. it seems to rise and fall with Engine revs. no fault codes coming up and drives well so dont think its turbo. the noise fades as the car warms up

High pitched whine you say?? Is the Mrs sitting in the passenger seat?  ON THE WAY: BMW F21 M140i
MERCEDES GL350 - Metallic Navy Blue w/Grey interior

GOING: BMW F31 335D MSport+ xDrive Touring
GONE: Land Rover Discovery 4 HSE - Stornaway Grey w/Black Interior (wish we'd kept it )
GONE: BMW F10 520D MSport - Carbon Black
GONE:MY12 RRS SDV6 HSE Sumatra/Ivory/Grand Black Privacy glass

FBH starting up or running ?? 2007, HSE, Cairnes Blue, Factory tints, Love it !!!

Where in Hampshire are you? West 4x4, Keith Gott and Rovertune are all good places..... Visitor from fullfatrr.com
* GONE. 2012 RR Sport HSE SDV6 Orkney Grey. Now being piloted by RRSTDV8
* Current: 2011 4.4 TDV8 Full Fat. Amazing piece of kit.
* Current. 1974 Lightweight 2.25L petrol. Old skool
* GONE. Freelander GS TD4 Manual MY2013. Orkney Grey with privacy, cold and clearview packs, armrests (a must!) and a spoiler.
* GONE. Range Rover Classic '93 200Tdi Factory fit
* 1949 80" in family since 1975

Could be the alternator pulley or water pump. Worth a check. Lot of Landcruisers now sold
Audi TT 240 Sport now sold for.
RRS 2.7 HSE Now sold for.
RRS Autoibiography 2012
Defender 300tdi 90

Could be any of the pulleys, but also the aircon clutch pulley is a favourite for whining when it starts failing. Bodsys Brake Bible
Software Updates Contact me
RRS Timed Heat/Remote kits - Contact me
BAS Engine Re-maps/ EGR Blank EuIII and EuIV
Clock On The Dash/ SNOTM /3Flash / BT Update /Service Reset/Error Codes read\ Gearbox Reset
See it HERE