The aux fan low speed resistor.

__________________

"Buster" in the '95

Our all-Diesel family
1996 E300D (W210) . .338,000 miles Wife's car
2005 E320 CDI . . 113,000 miles My car
Santa Rosa population 176,762 (2022)
Total. . . . . . . . . . . . 627,762
"Oh lord won't you buy me a Mercedes Benz."
-- Janis Joplin, October 1, 1970

The C02 extinguisher would have been a lot cleaner. I will look into one.

I have the front seat mounted fire extinguisher bracket from when I got the Euro seats. I wonder if I could reinstall it and expect my small fire extinguisher to fit. Great point about not being able to open the trunk.

__________________
1991 F250 super-cab 7.3 IDI. (rebuilt by me) Banks Sidewinder turbo, hydroboost brakes, new IP and injectors.
2003 S430 - 107K
1983 300SD - Tanoshii - mostly restored ~400K+.
1983 300SD - Good interior. Engine finally tamed ~250K.
Monark Nozzle Install Video - http://tinyurl.com/ptd2tge

If you use a power extinguisher, be sure to vac up right away as the powder is corrosive especially as it absorbs moisture.

The best thing for an alcohol fire is water but don't try this with oil / other petro fuels as it will just spread the fire around.

Although it will be hard to remember during the crisis, do not lift the hood to extinguish flames. Opening the hood just feeds any fire with a huge dose of fresh oxygen. If you can get the extinguisher nozzle into the grill, which you could easily learn to do when your stuff's not on fire, then you stand a dramatically better chance of reducing damage. If you must, just pop the hood and lift it only a little bit, then blast away with your extinguisher. You can also shoot up from under the front end.

__________________
2009 E320 Bluetec 117,000
1995 E300D 306,000 Sold
1996 Ford Taurus LX 130,000 Sold
1985 300TD Still 225,000 Sold
2016 Ford Fusion 24,900

The problem is the fire in this case will be between the two firewalls, below the brake booster. Opening the hood is the only way to get the extinguisher to that area

X2 --- and if the firemen would just understand that DIESEL does NOT explode......they could have saved me the trouble of replacing the front fender, hood, and windshield. Those guys are AXE happy.

__________________
daw_two
Germantown, TN

Links:
Sold last car --- 05/2012 1984 300D Light Ivory, Red interior
No longer selling Cluster Needles Paint
No longer selling New Old Stock (NOS) parts

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

... heck, in a vehicle GASOLINE does not explode...

My father's 90 corvette ZR1 caught fire, and burned to the ground... EVERYTHING gone on a fiberglass car... except the fuel tank, and the engine/trans/rear diff... oh, and a steel ring where the steering wheel used to be... odd.
HOWEVER!!!

the front and rear bumper shocks CERTAINLY DO EXPLODE!!! 4 rockets them were...

__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 560SL convertible
1987 190D 2.5-5SPEED!!!

1987 300TD
2005 Dodge Sprinter 2500 158"WB
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!

This Corvette was seen burning at the freeway exit ramp on my way to work.

__________________
http://farm8.staticflickr.com/7271/7...144c3fc1dc.jpg

Never use the blower on low speed if your W126 is composting leaves. I believe it's in the FSM somewhere.

Hey Whiskeydan --- I'm guessing you mean the AUX fan out front. So, how do we make it run on HIGH all the time? Bridge connect the temperature sensor on the front of the engine?

__________________
daw_two
Germantown, TN

Links:
Sold last car --- 05/2012 1984 300D Light Ivory, Red interior
No longer selling Cluster Needles Paint
No longer selling New Old Stock (NOS) parts

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

The CCU blower resistor under the fuse box has no current passed thru it with blower on high (or off). Nothing to do with the aux fan.

Early w126 aux fans are either on/off. No low speed but, if you want it to run all the jumper the temp sender. Although, there's no benefit is everything is in working order.

no. he's talking about the cabin blower. the leaves under the brake booster on the early 126 cars crowd around the resistor pack for the cabin blower, the lower the speed it's turning, the hotter the resistor pack gets. run the car on high speed fan only, and the resistor gets zero heat.
so either do not run the blower, or only run it in high mode.

__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 560SL convertible
1987 190D 2.5-5SPEED!!!

1987 300TD
2005 Dodge Sprinter 2500 158"WB
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!

Quote:
Originally Posted by Whiskeydan
Never use the blower on low speed if your W126 is composting leaves. I believe it's in the FSM somewhere.



Quote:
Originally Posted by daw_two
Hey Whiskeydan --- I'm guessing you mean the AUX fan out front. So, how do we make it run on HIGH all the time? Bridge connect the temperature sensor on the front of the engine?




You are not going to believe this ---- I have thought for YEARS that the resistor pack down there was for the AUX Fan low speed.

So, someone explain to me the low speed/high speed on the AUX fan --- or do I have that all mixed up, too.

__________________
daw_two
Germantown, TN

Links:
Sold last car --- 05/2012 1984 300D Light Ivory, Red interior
No longer selling Cluster Needles Paint
No longer selling New Old Stock (NOS) parts

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

I can't speak for other models or years but my gen 1 W126 has never ran the Aux fan at any other speed than max. It is either on or off. I believe the relay is inside the fuse box.

I always keep my CCU on Auto, so the resistor would be hot in most cases. I plan to keep that area clean and be aware of the potential danger. I will also stay prepared for another leaf event.

__________________
1991 F250 super-cab 7.3 IDI. (rebuilt by me) Banks Sidewinder turbo, hydroboost brakes, new IP and injectors.
2003 S430 - 107K
1983 300SD - Tanoshii - mostly restored ~400K+.
1983 300SD - Good interior. Engine finally tamed ~250K.
Monark Nozzle Install Video - http://tinyurl.com/ptd2tge

Wow, polyester , gold chains and white shoes really do self combust! ( and don't forget the Magnum PI mustache. . .. )