Mine is at 10*F with new nozzles and Valve adjustment, Hmm... That reminds me i need to change my GP ,

first crank 2 cylindes will start firing, 5-6 second later 3 cylinders will be firing, about 3 seconds later 4 cylinders is firing, than it runs like crap about 3 second then all 5 cylinders fires up, this is what i am experiencing every time when it drops near single digit numbers...By the way i love it when diesel struggles to start but i hate it if it can't start ...

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Current Garage
2008 Mercedes GL320 CDI 188k mi Repair/Work in progress
1994 S350 160k mi Garage Queen & prepping for repairs
2005 E320 CDI 203k mi Healthy & Daily Driver
1994 S350 357k mi Retried as parts car
1984 300TD 214k mi Blown OM617 Poss OM603 Swap??

Sold
1987 300SDL 200K+
1994 S320 181K mi
2008 E320 Bluetec 127k mi
1999 S420 130K mi
1980 240D 360k mi
15+ Others that has come, stay and gone

GONE, BUT NOT FORGOTTEN
1995 E320 SE 220k mi
1984 300SD 350k mi

I've started mine at -12F before with NO block heater and it had sat for over 14 hours at that temp. Took about 10ish seconds of cranking after a 25-30 second glow. My engine rocks. Right now its about 12F outside, it fires a cylinder on the first rotation and is running in less than 2 seconds after a 20 second glow. It starts BETTER now than when I got it 70,000 miles ago. I attribute it to 55k on synthetic oil.

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-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)

The factory extreme cold start drill :

pump the acellerator twice then hold to floor (someone PLEASE tell me how this helps ?!)

Cycle the glow plugs twice then crank the engine but DO NOT LET OFF THE KEY untill all 5 cylinders are firing and it'll start every time , first time .

When the car was new there was a red cradboard tag with all the extreme cold starting drill info on it..

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-Nate
1982 240D 408,XXX miles
Ignorance is the mother of suspicion and fear is the father

I did then what I knew how to do ~ now that I know better I do better

Last winter the 300D started at 8 or 9 F just like it was a warm day. The 240 was starting with difficulty down into the high teens and that was the coldest I tried it. It's supposed to get down to 9 tonight, and I'd like to drive the 240 to work tommorow. Lately, it's been having battery/slow drain issues that my multimeter refuses to measure, so I'm off to Wally World to get an extension cord so I can use the block heater.

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Whoever said there's nothing more expensive than a cheap Mercedes never had a cheap Jaguar.

83 300D Turbo with manual conversion, early W126 vented front rotors and H4 headlights 400,xxx miles
08 Suzuki GSX-R600 M4 Slip-on 22,xxx miles
88 Jaguar XJS V12 94,xxx miles. Work in progress.

I think that's supposed to help prime the IP?

Mine starts normally, it was probably about 15 degrees in my garage, except I forgot to put in the lighter oil weight this time, so it needs a little gas right off the bat to keep turning.

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1985 500SL Euro w/ AMG bits 130k
1984 300SD Turbodiesel 192k
1980 240D Stick China 188k
2001 CLK55 AMG 101k
2007 S600 Biturbo 149k Overheated Project, IT'S ALIVE!!!

The coldest mine start is around 30 degrees. Mainly because I refuse to live anyplace that gets colder than that.......

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Jimmy L.
'05 Acura TL 6MT
2001 ML430 My Spare

Gone:
'95 E300 188K "Batmobile" Texas Unfriendly Black
'85 300TD 235K "The Wagon" Texas Friendly White
'80 240D 154K "China" Scar engine installed
'81 300TD 240K "Smash"
'80 240D 230K "The Squash"
'81 240D 293K"Scar" Rear ended harder than Elton John

i was in tahoe, and it started right up after two glow cycles, i estimated minus 2 degrees F

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Current
2006 E320 CDI, 57K bought at 67K "Liesl"
1986 190E 2.3-16, 198K bought at 56K "Brigitta"
1987 300TD (Chuggin Along), 292K "Friedrich"
1995 E320 Wagon, 200K "Louisa"

Past
1987 300SDL, (sold) 125K, bought for 1$ "Kurt"

Dunno, but she started pretty much normally (a couple of stumbles) almost the first rev after 2 glow cycles at 20-something on Sunday...

We've had ice on the streets since Friday, so the 300CD is staying home and I'm driving my Jeep 'til the roads are all clear.

I'm not taking ANY chances with some numb-nutz who doesn't know how to drive in bad weather plowing into me and totaling my Benz!

Unfortunately, between the rarity of snowy weather, and the excess number of California transplants, we have a LOT of people around here who have no clue about how to drive in snowy/icy conditions

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1984 300 Coupe TurboDiesel
Silver blue paint over navy blue interior
2nd owner & 2nd engine in an otherwise
99% original unmolested car
~210k miles on the clock

1986 Ford F250 4x4 Supercab
Charcoal & blue two tone paint over burgundy interior
Banks turbo, DRW, ZF-5 & SMF conversion
152k on the clock - actual mileage unknown

It's 22 now, my 240D started, but my SD would not with out plugging in. I did have a glow plug out in the SD though...

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1979 240D- 316K miles - VGT Turbo, Intercooler, Stick Shift, Many Other Mods - Daily Driver

1982 300SD - 232K miles - Wife's Daily Driver

1986 560SL - Wife's red speed machine

Last time I started my SDL it was 18*F outside, and it started like it was 60

A moment of silence while we wait for the glow plugs...

-Jason

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1991 350SDL. 230,000 miles (new motor @ 150,000). Blown head gasket

Tesla Model 3. 205,000 miles. Been to 48 states!
Past: A fleet of VW TDIs.... including a V10,a Dieselgate Passat, and 2 ECOdiesels.
2014 Cadillac ELR
2013 Fiat 500E.

Even jumping the battery for extra charging, my SD refused to start at all @ 35 F a few days ago. Then again, the engine has been showing signs of extreme amounts of blow by, so low compression isn't helping at all!

On the other hand, the parts car that I bought for an engine, I'd never had it cranked up since I bought it until the day the SD didn't want to play, and it cranked up in 5 seconds flat, with a short glow cycle to boot.

(I *really* need to get around to swapping the engines...)

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-Josh
Testing the cheap Mercedes axiom, one bolt at a time...

last winter the sdl started in zero degree weather with one glow plug out no block heater This year who knows the 18 year old hasnt called so I guess it starts

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commercial fisherman diesel in my blood in my boats trucks and Dear old Dad has had me drivin them since i got my first license in 1968
1986 300 SDL 427654
1999 Chevy Crew Cab Dually 225423
1986 300 SDL 287000 Dad's
1987 190 Turbo 158000 Mom's (my inheritance)

last winter...........Candy started when it was 8 degrees. That temperature is too cold for any Elvis sightings. It doesn't normally get that cold here.....but maybe once ever 3 years. Anyway, Candy never spent a night in the garage and hadn't been started in like a week.

One full glow cycle (wait for the relay to go "glunk"); turn key off, then back on.......20 seconds later, starts on all 5 cylinders like it was 60F out.


Speaking of cold starts, I've "fixed" the rough starting on Coda. I have instructed the "driver" that they need to wait longer in the glow cycle before cranking; waiting until the light goes off is not long enough when she has sat outside or all day (no lunch) at the office. Last night, it was about 29 when I left the office and I didn't wait for the "glunk", but waited past the light going out and she started better.

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daw_two
Germantown, TN

Links:
Sold last car --- 05/2012 1984 300D Light Ivory, Red interior
Cluster Needles Paint
New Old Stock (NOS) parts

Past:
3/2008 1986 300SDL "Coda"
04/2010 1965 190D(c) "Ben"
& many more

Reminds me of a gas tractor we had that got water in the exhaust. (Summer)Start with ether, firing on only one. We let it sit in the driveway for about half an hour, every couple minutes you could hear another cylinder start to fire

On topic, I can cold start down to -20*F(Haven't owned it in colder weather to find out) If that #1GP goes though, she's only good down to 50*F

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$60 OM617 Blank Exhaust Flanges
$110 OM606 Blank Exhaust Flanges
No merc at the moment