White Smoke - 220Sb

1961-1968: a.k.a "Finnie" or "Heckflosse" models
190, 190D, 200, 200D, 220b, 220Sb, 220SEb, 230, 230S, 250SE coupe, 280SE coupe, 280SE 3.5 coupe, 220SEb cabrio., 250SE conv., 280SE cabrio., 280SE 3.5 Cabrio., 300SE, 300SE coupe, 300SE conv., 300SEL
Post Reply
User avatar
dynamike
S Class
Posts: 79
Joined: Thu 27 Oct, 2016 8:35 am
Model you own: w111
Location: Brisbane, QLD

White Smoke - 220Sb

Post by dynamike » Mon 12 Jun, 2017 11:18 am

So I noticed white smoke coming out of the exhaust of my new 220Sb. Uploaded a video of it here

Searching the forum I found some comments about brake booster and vacuum hose leaking into intake manifold so will have a look at that tonight. Any other ideas?
1965 220 Sb Sedan
1962 220Seb Sedan (stripped for parts)
http://ozbenz.net/viewtopic.php?f=9&t=23626

User avatar
eddie
Zeppelin
Posts: 403
Joined: Fri 05 Oct, 2012 8:38 am
Model you own: w210
Location: Crafers West, SA

Re: White Smoke - 220Sb

Post by eddie » Mon 12 Jun, 2017 11:27 am

Looks like it's water vapour, was that when cold? Just after starting?

When the booster lets go the u can't even see through the smoke cloud!! The neighbourhood would call the fire department.


Sent from my iPhone using Tapatalk
1998 W210 E240 - yawn, but like a tank
1969 Fiat 124 sport coupe - sold it...bit sad but onwards and upwards
2000 Mk4 VW Golf GTi - the german's should be ashamed - SOLD, no love lost there
1965 W111 coupe 220seb
1998 BMW M3 - interim car until the coupe is back, bit of a rocket to boot - SOLD, cant help but think I'm going to regret selling that one :think:
2003 Porsche 911 - had to see what all the fuss was about

User avatar
dynamike
S Class
Posts: 79
Joined: Thu 27 Oct, 2016 8:35 am
Model you own: w111
Location: Brisbane, QLD

Re: White Smoke - 220Sb

Post by dynamike » Mon 12 Jun, 2017 12:02 pm

eddie wrote:Looks like it's water vapour, was that when cold? Just after starting?
Sent from my iPhone using Tapatalk
Yes, from cold but didn't seem to improve as engine warmed up. Only had it going about 5 mins this morning though.
1965 220 Sb Sedan
1962 220Seb Sedan (stripped for parts)
http://ozbenz.net/viewtopic.php?f=9&t=23626

User avatar
Mercmad
Mercedes Demigod
Posts: 8044
Joined: Sun 11 Sep, 2005 8:01 pm
Model you own: w109
Location: Brissy
Contact:

Re: White Smoke - 220Sb

Post by Mercmad » Mon 12 Jun, 2017 3:24 pm

We have had cold wet weather lately. it looks like water vapour from condensation in the muffler. You must never start the engine then shut it off unless you get it warmed up properly (180 on the gauge) it not only causes plug fouling because the cold start mech is running the engine rich but you will wreck the inside of the mufflers with moisture. get it hot then see if it is still steaming. it can take 45 minutes sometimes to get everything nice and warm. Unlike modern cars which have electronically controlled fuel systems our cars rely on 20th century technology and have to be driven, not just steered around the place. : :laughing6:

User avatar
Bartman4800
300 SLR
Posts: 1872
Joined: Fri 10 Oct, 2008 12:10 am
Model you own: w111
Location: Perth WA

Re: White Smoke - 220Sb

Post by Bartman4800 » Mon 12 Jun, 2017 5:35 pm

+1 on the water vapour.

White smoke would linger around a lot longer.

Listening to the engine sound it runs better than a lot of them!

Bart
1963 220 Sb Sedan "Kermit" (Australian Assembly)
1960 220 Sb Sedan "Zum Schlachten" (Early German Assembly, with a torsion bar spring for the bonnet) - Stored in Country WA
1981 Subaru Brumby 1.8 with Weber and 5-speed box "little utie" - Sold to another enthusiast!
2006 Ford Focus "daily driver"
2002 VW Passat V6 30V Station Wagon (SOLD - This car into a money pit)
2011 Kia Sportage "Missus commuter Bus"
2002 Mitsubishi Rosa Bus (converting it to a motor home)

User avatar
starman61
Gelandewagen
Posts: 104
Joined: Fri 24 Jan, 2014 9:49 am
Model you own: w107
Location: Picton, NSW

Re: White Smoke - 220Sb

Post by starman61 » Mon 12 Jun, 2017 9:38 pm

Sorry but the video won't load for me. (Internet is crappy at the moment).

Another possible cause, if the vehicle is an automatic, is that the modulator diaphragm on the transmission may have ruptured and ATF is being sucked into the intake manifold and burnt.

I had this happen on my w108 and it can be quite alarming to see (my garage filled with white smoke on start-up), however, replacing the modulator fixed it immediately.

Hopefully, it is water vapour as the others said but just wished to indicate an alternative.

Good Luck,

Bill
'65 W111 220SB
'72 W108 280SE 3.5
'79 R107 450SL
'84 W126 380SEC
'98 R129 SL280
'10 Sprinter 318CDI

User avatar
dynamike
S Class
Posts: 79
Joined: Thu 27 Oct, 2016 8:35 am
Model you own: w111
Location: Brisbane, QLD

Re: White Smoke - 220Sb

Post by dynamike » Tue 13 Jun, 2017 9:27 am

Thanks for all your replies. I'll give it a longer ride once the rain subsides and will see how it goes when completely warmed up.
1965 220 Sb Sedan
1962 220Seb Sedan (stripped for parts)
http://ozbenz.net/viewtopic.php?f=9&t=23626

User avatar
dynamike
S Class
Posts: 79
Joined: Thu 27 Oct, 2016 8:35 am
Model you own: w111
Location: Brisbane, QLD

Re: White Smoke - 220Sb

Post by dynamike » Mon 19 Jun, 2017 5:03 pm

Started it up this morning when it was a lot warmer and less humid and no smoke at all. So conclude it was condensation. Thanks for everyone's replies!
1965 220 Sb Sedan
1962 220Seb Sedan (stripped for parts)
http://ozbenz.net/viewtopic.php?f=9&t=23626

User avatar
dynamike
S Class
Posts: 79
Joined: Thu 27 Oct, 2016 8:35 am
Model you own: w111
Location: Brisbane, QLD

Re: White Smoke - 220Sb

Post by dynamike » Tue 03 Jul, 2018 7:52 am

starman61 wrote:
Mon 12 Jun, 2017 9:38 pm

Another possible cause, if the vehicle is an automatic, is that the modulator diaphragm on the transmission may have ruptured and ATF is being sucked into the intake manifold and burnt.

I had this happen on my w108 and it can be quite alarming to see (my garage filled with white smoke on start-up), however, replacing the modulator fixed it immediately.

Bill
Opening this thread again as this time I got a white smoking machine that's clearly not condensation...

Thought I had a blown head gasket but going by some preliminary testing and Atf fluid loss I think it might be the modulator as per Bill's comment above. Will run a proper leak down test this weekend but in the meantime a few questions.

To test, is it just a matter of checking the vaccum hose for fluid residue?

Can it be changed without pulling the transmission.

Also, do you happen to know the part number?

Cheers,
Mike
1965 220 Sb Sedan
1962 220Seb Sedan (stripped for parts)
http://ozbenz.net/viewtopic.php?f=9&t=23626

User avatar
eddie
Zeppelin
Posts: 403
Joined: Fri 05 Oct, 2012 8:38 am
Model you own: w210
Location: Crafers West, SA

Re: White Smoke - 220Sb

Post by eddie » Tue 03 Jul, 2018 9:12 am

Hey Mike,

If it's ATF being sucked into the manifold the smoke cloud would be seen from the international space station, it really properly white smokes all over the place. It also gets sucked into cylinder no.6 more than the others so check the rear spark plug and see how wet it is. If the plug is normal it's likely to be something else.

All the best
1998 W210 E240 - yawn, but like a tank
1969 Fiat 124 sport coupe - sold it...bit sad but onwards and upwards
2000 Mk4 VW Golf GTi - the german's should be ashamed - SOLD, no love lost there
1965 W111 coupe 220seb
1998 BMW M3 - interim car until the coupe is back, bit of a rocket to boot - SOLD, cant help but think I'm going to regret selling that one :think:
2003 Porsche 911 - had to see what all the fuss was about

User avatar
dynamike
S Class
Posts: 79
Joined: Thu 27 Oct, 2016 8:35 am
Model you own: w111
Location: Brisbane, QLD

Re: White Smoke - 220Sb

Post by dynamike » Mon 09 Jul, 2018 7:55 am

Confirmed it was the modulator over the weekend. As you described, spark plug on cylinder 6 was really moist, and when I pulled the vacuum line ATF streamed out.

Still did a leak down test too and noted all cylinders were loosing around 45% most likely through the intake valves, possibly some through the exhaust but pressure was probably too low to notice on the exhaust.

That value seems rather high because the engine still runs smoothly. Might be partly due to the cheapish leak down tester kit too.

Does anyone know what is still an acceptable result on a leak down for an unrestored 53 year old M180 engine?
1965 220 Sb Sedan
1962 220Seb Sedan (stripped for parts)
http://ozbenz.net/viewtopic.php?f=9&t=23626

rens1976
B Class
Posts: 21
Joined: Sat 19 May, 2018 5:34 pm
Model you own: w110
Region: Queensland
Location: Brisbane

Re: White Smoke - 220Sb

Post by rens1976 » Tue 10 Jul, 2018 4:32 pm

dynamike wrote:
Mon 09 Jul, 2018 7:55 am
Confirmed it was the modulator over the weekend. As you described, spark plug on cylinder 6 was really moist, and when I pulled the vacuum line ATF streamed out.

Still did a leak down test too and noted all cylinders were loosing around 45% most likely through the intake valves, possibly some through the exhaust but pressure was probably too low to notice on the exhaust.

That value seems rather high because the engine still runs smoothly. Might be partly due to the cheapish leak down tester kit too.

Does anyone know what is still an acceptable result on a leak down for an unrestored 53 year old M180 engine?
45% is a lot of leakage. Remember that it can be masked by things like bad timing or gasket leaks, but it does suggest there are issues.

Post Reply

Return to “W110, W111, W112 Sedans, Coupes and Cabriolets.”