Hi all

Bit of a strange one

Once my Tdv8 3.6 has warmed up, if I spend any time stationery in traffic with engine on I start getting plumes of exhaust smoke/grey smoke from under the engine/ under the car?

Any ideas?

It smells too!!!

I get the same occasionally…but not often.
I always put it down to the FBH

The exhaust for the FBH is down where the passenger side mudflap fastens on. In case your smoke came from a totally different area, and it will only run whilst the engine warms up and outside temp is low….

 2011 Range Rover Vogue SE 4.4 TDV8

Previous cars :
2003 Range Rover Vogue TD6
1999 Discovery Td5 ES
1995 BMW M5 3.8 6 speed
1992 Range Rover 3.9 Efi Vogue
1992 BMW M5 3.8
1988 BMW 735i SE
1989 Ford Sierra XR4x4 2.9i
1981 Ford Fiesta Supersport

What does it smell of?

Kind of diesel smell/exhaust?

Does the FBH come on automatically? I don't have it switched on via the onboard computer - it's left on manual

Thanks

Mine puffs out smoke from the OS wheel arch occasionally when it's cold outside and the FBH is working. The FBH is on the NS so no idea why but it smells of burning diesel. 2012 TDV8 Vogue (L322)

It will fire up when the ambient is below 5deg. C and the coolant temperature is below (I think!) 75 deg. C. It will also fire up if the cabin heat demand cannot be fulfilled by the engine coolant temperature. The manual controls are additional to the above, not an override. The exhaust is angled under the vehicle, not to the outside, depending on the prevailing wind, it can appear from anywhere around the vehicle.

Or you could have a hole, crack etc in your engine exhaust pipe...... Pete

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2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior
2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Parchment over Navy Interior. Sold
2012 L322 Autobiography 5.0 Supercharged Ipanema Sand, Jet Interior. Sold
2002 L322 Vogue 4.4 V8 Epson Green, Ivory over Aspen Interior (Fatty Offroader) Sold
-Click for Project Fatty off roader-

If that were the case, then there'd be running issues with exhaust smoke that colour if it was from the engine rather than the FBH

Mine’s definitely FBH smoke. My thermostat is leaking so engine temps often dip below 75 deg during cold weather and the FBH helps out. 2012 TDV8 Vogue (L322)

Phoenix wrote:

If that were the case, then there'd be running issues with exhaust smoke that colour if it was from the engine rather than the FBH

Yep, I missed the bit where the OP said it smoked... "should have gone to specsavers..."  Pete

__________________________________________________
2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior
2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Parchment over Navy Interior. Sold
2012 L322 Autobiography 5.0 Supercharged Ipanema Sand, Jet Interior. Sold
2002 L322 Vogue 4.4 V8 Epson Green, Ivory over Aspen Interior (Fatty Offroader) Sold
-Click for Project Fatty off roader-

It may have given up smoking as a new year resolution