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> 850 TDI Black Smoke
sk799
post Mar 21 2005, 05:10 PM
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Hi

My 850 TDI seems to produce the infamous diesel black smoke. It is not really noticeable on normal cruising but under acceleration it is at its worst.

Any ideas of how I can reduce this. Is there anything specific for this engine that would be worth checking?

Thanks

Stu
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L1011
post Mar 22 2005, 06:12 AM
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Hi sk799, I would advise you to find a Bosh-Diesel garage near you and send the car over for a quick check, might be just a small regulation.
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ampangbear
post Mar 22 2005, 07:12 AM
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A noticeable white smoke suddenly appeared on my exhaust one day, and set the Lambda light on. Refer to post on 'Lambda Light'. I sent it back to the dealer right away.

:)
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rayray
post Mar 30 2005, 07:45 PM
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is it a turbo ?
if so you need to get it replaced.

if not it could be a fuel problem

ray
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Trix
post Mar 31 2005, 09:34 AM
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I had the white smoke once when I left the car idling while parked for about a half hour.

I asked about it and it was nothing to be concerened about; it cleared up after driving.
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BarmyArmy
post Mar 31 2005, 12:57 PM
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Please correct me if I'm wrong but I thought:

White smoke= water in fuel mix
Blue smoke = oil in fuel mix
black smoke= insufficient air in fuel air mix ie. incomplete combustion.

Barmy
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ampangbear
post Apr 1 2005, 03:58 AM
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WATER (?) in fuel mix...?
That can't be good, can it?
:huh:

I don't know, Barmy.
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snorrih
post Apr 1 2005, 09:59 AM
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Diesel & white smoke = unburnt diesel in exhaust system.
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BarmyArmy
post Apr 4 2005, 12:38 PM
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Means badly gone head gasket, ie. you're leaking coolant into engine.
ie. its not smoke its steam!

...its not good.

QUOTE(ampangbear @ Apr 1 2005, 09:58 AM)
WATER (?) in fuel mix...?
That can't be good, can it?
:huh:
[right][snapback]6098[/snapback][/right]
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denkweb
post Aug 22 2005, 01:28 PM
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Correct.

But the Volvo 850 TDI does produce a nice black cloud as well when stepping on the gaspedal... nothing to really worry about! When disconnecting the EGR-valve, it slightly reduces, but don't expect miracles then!
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