I have an 03 Range Rover 2.9 Tdi that is chucking out a load of smoke.

I took along to a garage who thought it was an oil leak dripping onto exhaust. It really only seems to be doing this under load, anyone else got experience with this or any ideas what else it could be??

Many thanks

Where is the smoke actually coming from? Out of the exhaust?

What colour is the smoke? Discovery 4 HSE
1998 110 TUM HS FFR Hard Top XD WOLF
1982 Series 3 Hard Top

*Gone:L462 D5 HSE LUX, L663 Defender 110 HSE, Discovery 3 HSE, 2014MY Range Rover Sport 5.0 Supercharged AB Dynamic; L405 Exec Vogue SE 4.4, 5.0 Supercharged Autobiography, Defender TDCi XS CSW, Defender TD5 HT, Vogue SE TDV8, Vogue TD6, RRSport SC 4.2V8, Classic 3.9 Vogue Auto, Land Rover Series 3 SWB

Well, I have just come back from local diagnostic centre and they have found the following codes:

P1E30 - Boost Control or Boost Control Valve
P3505 - Glow System

Does anyone have experience of above?

The smoke seems to be black smoke under load and also quite a lot of white smoke when on motorway etc.