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  #1  
Old 02-16-2006, 10:08 PM
Hit Man X's Avatar
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Thumbs up M103 fan clutch on my M603!

Yes it is true, a 300E style fan clutch will work on the 603 motor. I just installed mine finally today here and it works as expected. Now the only catch may be that I have the updated plastic fan but I do not see the older metal fan not working with the 103 clutch. Someone will need to try this, if I can remember I'll take the metal fan from my parts car sometime and try it with my dead M103 clutch out in the garage.

You may ask why I chose to do this? Well after research both lock up at the same temp (~100C) and the biggest factor is cost. M103 clutches are around $100 less than just the new 603 clutch. That's a big difference.

Just an FYI to all 603 owners.

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'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

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  #2  
Old 02-17-2006, 01:26 PM
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Dieseldiehard
 
Join Date: Oct 2002
Location: Bay Area No Calif.
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Now you tell us! I just replaced mine with a new Behr
I wanted to avoid going to the higher temp the new thermo clutch runs at, as Brian thinks it was done to decrease emissions, besides I would need a new plastic fan to go with it, so I ordered the replacement just a few weeks ago and recently installed it.
Oh well.
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  #3  
Old 02-17-2006, 02:39 PM
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Thumbs up

Quote:
Originally Posted by dieseldiehard
Now you tell us! I just replaced mine with a new Behr
I wanted to avoid going to the higher temp the new thermo clutch runs at, as Brian thinks it was done to decrease emissions, besides I would need a new plastic fan to go with it, so I ordered the replacement just a few weeks ago and recently installed it.
Oh well.


I didn't want to say anything until I was certain it would work.
__________________
I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.
[/IMG]
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  #4  
Old 02-20-2006, 07:55 PM
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Join Date: Jul 2004
Location: Annapolis, Md.
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Are you sure the blades run the same way as the original metal one? If not you better swap just the blade. I thought I remember having to after getting a 103 from a yard.
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99 E300 TURBODIESEL Astral Silver 282K - AMG brakes, suspension, monoblocks, speedo & interior - Full Load Maxed on IP by custom Speed Tuning USA Chip - T3/T4 Garrett - EGR/MAF delete
98 E300 TURBODIESEL Alexandrite Green on black leather 289K
95 E300 DIESEL Green Queen 267K SOLD
84 300D 216k SOLD
87 300D 299K #22 head - intercooler - full load adj. - 8sec 0-60mph - SOLD
76 300D 214K SOLD
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  #5  
Old 02-20-2006, 10:03 PM
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Quote:
Originally Posted by mdisav
Are you sure the blades run the same way as the original metal one? If not you better swap just the blade. I thought I remember having to after getting a 103 from a yard.


I have the updated 603 plastic fan with the 300E clutch. It's stamped Fwd/Back on the plastic fan.

Vehicle sat running for over 30min on Sat when I picked up a BMW and no cooling problems at all. Sits just a hair over 80C
__________________
I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.
[/IMG]
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  #6  
Old 02-20-2006, 10:12 PM
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Join Date: Jul 2004
Location: Annapolis, Md.
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Cool! I must have had the older style plastic blade.
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99 E300 TURBODIESEL Astral Silver 282K - AMG brakes, suspension, monoblocks, speedo & interior - Full Load Maxed on IP by custom Speed Tuning USA Chip - T3/T4 Garrett - EGR/MAF delete
98 E300 TURBODIESEL Alexandrite Green on black leather 289K
95 E300 DIESEL Green Queen 267K SOLD
84 300D 216k SOLD
87 300D 299K #22 head - intercooler - full load adj. - 8sec 0-60mph - SOLD
76 300D 214K SOLD
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  #7  
Old 02-20-2006, 10:49 PM
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Join Date: Sep 2004
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Posts: 9,087
Thumbs up

Plastic diesel fans are the updated ones, the early style was metal.
__________________
I'm not a doctor, but I'll have a look.

'85 300SD 245k
'87 300SDL 251k
'90 300SEL 326k

Six others from BMW, GM, and Ford.

Liberty will not descend to a people; a people must raise themselves to liberty.
[/IMG]
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  #8  
Old 02-21-2006, 08:44 AM
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Join Date: Jul 2004
Location: Annapolis, Md.
Posts: 556
Yeap. My 99 has the plastic fan. When I replaced the fan on my 87 with the 103 clutch fan, I took it off an 86 300E that had a plastic fan with the blades going the other way. I just put my old metal one on the new clutch.

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99 E300 TURBODIESEL Astral Silver 282K - AMG brakes, suspension, monoblocks, speedo & interior - Full Load Maxed on IP by custom Speed Tuning USA Chip - T3/T4 Garrett - EGR/MAF delete
98 E300 TURBODIESEL Alexandrite Green on black leather 289K
95 E300 DIESEL Green Queen 267K SOLD
84 300D 216k SOLD
87 300D 299K #22 head - intercooler - full load adj. - 8sec 0-60mph - SOLD
76 300D 214K SOLD
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