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Discussion Starter · #1 ·
Hi all. Looking for advice..
S-Type 2.7D on 06 plate, 95k on the clock. Had both EGR valves done a month or so ago, along with cambelt, various hoses under the bonnet & several airflow sensors cleaned due to an ill-fitting air filter. Leaving work last night, within a few hundred yards, there was smoke everywhere - underneath the rear of the engine, and to both sides, and a strong whiff inside the car too. I stopped, switched off & checked all round & under the bonnet, but there was nothing obvious. The smoke dissipated after a minute or so, then I restarted the engine. No smoke anywhere, and the car happily ran 25 miles home. 25 miles back to the office again this morning too.

Any ideas as to what that was all about??

The (non-specialist, but friendly) garage round the corner says it may be the diesel pre-heater which apparently has a separate exhaust??? (he had similar on his Range Rover a while ago - looked like it was on fire). Outside temperature around 4 to 6 degrees C....

Best Regards, etc.
Chris
 

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For sure this is the diesel fuelled engine heater that cuts in automatically when the temperature drops. I had it on a previous diesel S type. I thought that after the first couple of times it happened it would clear itself.....wrong.

To be honest I found it embarrassing having to explain to worried onlookers. I have a petrol S type now so no more of that nonsense and the engine warms up way quicker on a cold morning.

Regards...................................IP
 

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Discussion Starter · #3 ·
For sure this is the diesel fuelled engine heater that cuts in automatically when the temperature drops. I had it on a previous diesel S type. I thought that after the first couple of times it happened it would clear itself.....wrong.

To be honest I found it embarrassing having to explain to worried onlookers. I have a petrol S type now so no more of that nonsense and the engine warms up way quicker on a cold morning.

Regards...................................IP
Thanks. Been considering trading up to a petrol for a couple of months now to be honest, as my old commute was DPF-friendly (motorway) and my new one isn't (A-roads and roundabouts).
Just waiting for the right one at the right price.
 

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I was lucky and had a 2005 model that wasn't lumbered with DPF (identifiable by the exhaust outlets turned down).

I enjoyed the torque of the engine and if I'm honest preferred it slightly to the petrol engine (loved the 37MPG of course) I was advised by my Indie mechanic to change to petrol as the low annual and rural mileage I do would probably lead to expensive turbo problems.

My diesel S type didn't have touch screen or the walnut dash which I hankered for. I loved the colour, (Seafrost green).
It's replacement has a higher spec. interior, touchscreen, walnut dash, wood steering wheel and piping on the seats.

The performance of the petrol engine is fine, I just think the diesel has a lovely whoosh to it, whereas the petrol is a bit more throaty.
The Radiance red colour is nice but the Seafrost was in my eyes, more glamourous.

Funny how you can't seem to get everything you like in one package, unless you are fortunate enough to be able to afford to order new. Even then they don't make S Types anymore which I prefer to XF's (sorry XF owners!)

Regards..............................IP
 

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When this happened to me I thought the car was about to catch fire, smoke everywhere inside and out. It occurs at this time of the year when the weather first turns cold; the deisel-fired auxiliary heater (made by and referred to as the Webasto) cuts in and burns off some fuel that has accumulated over the summer period. If you look underneath the nearside front you will see an open vertical pipe about 20mm in diameter pointing towards the ground. That's where the smoke is probably coming from. If so, perfectly normal but very disconcerting when it happens and a pretty rubbish design.
 

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As other posters have said the most likely cause is the auxiliary heater firing up.

However, just a warning, when I had my driver's side EGR valve replaced at an Indy (it's a swine of a job and really fiddly) it is necessary to disconnect some of the high pressure fuel pipes to gain access to it. The mechanic somehow managed to cross thread one of the pipes and for a few days I had a fuel leak which filled the undertray and periodically spilled onto the hot exhaust creating a smokescreen. Now I'm sure this probably isn't your situation, but to be on the safe side just have a quick look under the car for anything dripping off the shielding.
 

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RELAX, it's the little Webasto fuel fired heater. The smoke is normal, they all do it, there's a bit about it in the handbook. If it smokes for a minute when it fires up that's good, it means it's operating as the manufacturer intended. Mine fired for the first time this season last week, I stopped at traffic lights and people were walking past clutching their throats and pointing.
And they are a great little thing when they get cracking, warm and cozy in no time at all.:-D
Oh, and I wouldn't advise pulling the fuse, the little heater helps the engine get up to temp. much quicker than it otherwise would. The advantages far outweigh the embarrassment of a bit of smoke.
 

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I would start mine, drive off steadily down to the village about a mile away, then the heater would start to smoke big time. People would wave and shout frantically. It never seemed to get any better.
I'm sure it did what was intended and you always knew when it was working!

Smoked like a kipper.................................IP
 

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Vic it took 6 years to get it working didn't it?

Enjoy, you'll get unpleasant looks in any case but you'll be warm and they aren't! ;):)
Hehehe, 2 winters actually. The s type has a model designation (X202, X204, etc) at some stage my car had had another climate control centre panel fitted and we'd never noticed it was an X202 panel, guess what, the 2.7 diesel with the little Webasto wasn't introduced until the facelift X204. We'd fitted the wrong b loody panel.:oops::oops: The little heater and the climate control are all linked together
 

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Hehehe, 2 winters actually. The s type has a model designation (X202, X204, etc) at some stage my car had had another climate control centre panel fitted and we'd never noticed it was an X202 panel, guess what, the 2.7 diesel with the little Webasto wasn't introduced until the facelift X204. We'd fitted the wrong b loody panel.:oops::oops: The little heater and the climate control are all linked together
.
Well the diesels are all 2004+ but was the heater an option?
 

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Discussion Starter · #15 ·
Thanks all. It's not occurred again, but the garage has pointed out where the exhaust is fitted for future reference.. Someone mentioned possible fuel leaks - there's no sign of any drips on the drive, so I think we're still sound underneath in general.
Cheers
Chris
 

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Well the diesels are all 2004+ but was the heater an option?
Nope, standard fitting. The circuit boards in the panel changed X202 and X204 were different.
 
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