I just replaced the blower motor and resistor on my w124 90 300CE and still get nothing to work. Replaced fuse seven....even replace climate control with a known working one.

Please help....

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Norm K.
'97 E420 Sport
'06 E350 Sedan
'67 Mustang Coupe
'70 F-250
'15 VW Jetta

did you check the 30 amp fuse strip that is in a little casing outside the fuse box.

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2012 BMW X5 (Beef + Granite suspension model)

1995 E300D - The original humming machine (consumed by Flood 2017)
2000 E320 - The evolution (consumed by flood 2017)

Or have you bothered to check if you are getting voltage to the blower? Blower voltage regulator is the usual suspect if not the fuse.

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Eugene

10 E63 AMG
93 300te 4matic
07 BMW X3
14 Ford F-150 Fx2

Sorry, not seeing the 30 amp fuse outside the fuse box.....if it were a snake it would bite me....location please????

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Norm K.
'97 E420 Sport
'06 E350 Sedan
'67 Mustang Coupe
'70 F-250
'15 VW Jetta

The fuse is a flat metal strip held by two screws. It is under a black plastic cap on the left front fender well near the shock tower. It is stand alone i.e., not with a group of other fuses.

These fuses are prone to hairline cracks that are difficult to see.

I had a 300E where the connector bolted to the body behind the brake booster where the blower regulator plugs in was melted on the inside. It was a bear to replace and it showed no signs of damage on the outside. I went through the same procedure replacing the usual components only to find the connector melted.

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Cars:
1993 400E
1993 300TE Wagon
1985 300D Turbodiesel w/ 688,000 Miles On Original Eng/Trans
1979 300SD
1977 Euro 6.9
1967 230S IMA Universal Wagon
100 Or So Parts Cars

You Cannot Change your Future Without Disturbing Your Present

It Looks A Whole Lot More Like It Did Today Than It Did Yesterday?

Do you see anything that looks like this behind the brake booster? It could also be near the left front strut tower like Sugar Bear said.

Attached Thumbnails

 

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1993 400E, 256,000 miles (totaled)
1994 E420, 200,000+ miles
1995 E420, 201,000 miles

That connector is the testing point of the wiring that goes to the blower, I also thought of it being a bear to work on, but after removing the wiper cowling trims it was a piece of cake.

I snipped a 3 pin from the yard to test it. (when my blower quit) - it was a fuse problem

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2012 BMW X5 (Beef + Granite suspension model)

1995 E300D - The original humming machine (consumed by Flood 2017)
2000 E320 - The evolution (consumed by flood 2017)