smoke coming from under bonnet

[Malfin]

some times when i stop i get a some smoke  or looks like smoke come from under bonnet when i get out and look under bonnet its gone does any one know what it can be

[Old Peter]

Hi Malcolm, and welcome to the Club.

 

Is you car the 2.7 diesel engine?  If some it is the same engine as the S type.

 

I have not seen that on my car, other when the auxiliary heater comes on at start up.

 

Is there a whiff of diesel at the same time, or does the EML come on?

 

Is there a spill or leak of fluid dripping on to the engine block?

 

Regards,

 

 

Peter.

[Malfin]

Hello Peter

yes it is a 2.7 there is no leak no smell just a bit of smoke on the left side of car.

it's there when I've pulled up at lights when I get out to look it's gone no smell

Nothing the smoke just goes it's only happened 2 or 3 times in 2 mouths.

Regards

malcolm

[Raistlin]

iIt certainly sounds like the aux heater Malcolm but I'd be concerned if it was running this time of the year unless you've had cold morning starts perhaps.

If it continues, pull the fuse for the aux heater and see if that stops it.

[Malfin]

Where can I find the fuse to aux heater or what does it come under in the list of fuses if someone can help please

Many thanks

Malfin

[Raistlin]

F3 20 Amp in the underbonnet fuse-box

[Malfin]

there is no fuse in f3 the smoke still comes out from left side  do you think there is a  Proplem  with the auxcliry  heater or can it be something else  any

i dears  will help when i take it to garage if i need to  

[Raistlin]

It might be that the flexible link in the left hand exhaust bank has split, allowing exhaust gas to leak.

[Malfin]

thanks very much paul i will book it in garage as i have 2 years  warranty on it.

it gives me something to ask about when i put it in .

thanks 

regards

malcolm

[Smilerdream]

Hi what was the conclusion to this please mine is doing exactly the same!! Thanks 

[Robins]

My 2.2 xf is doing this as well about once a month 

[Jon Hyde]

So glad I found this topic!

My XF-S occasionally emits what looks like steam (but obviously is probably smoke) from the front left of the bonnet. No ill-effects on driving/performance, just a bit scary. Only does it briefly after a cold start. My speed limiter in the passenger seat says she can smell it and she doesn't like it.

I think I'll just relax now!

Cheers,
Jon

[Coolcity]

On 11/18/2021 at 6:29 AM, Jon Hyde said:

My speed limiter in the passenger seat..... 😂

I've got one of those too. 

[MJ10]

On 11/17/2021 at 3:05 PM, Robins said:

My 2.2 xf is doing this as well about once a month 

Mine too. What was the outcome?

[Tomato]

If not the aux, could be a small Oil leak if blue smoke. Get some degreaser and clean up the dirt around your engine where you think it coming from and any drips underneath. Only needs to be tiny when engine is warm to smoke.