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2000 E430 (base), 77 450SL, 89 420SEL, 97 E420
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295 Posts
Discussion Starter #1
One of my auxiliary fans is binding against the housing and not allowing them to preform when necessary. I have cleaned the blades and removed debris from the housing as much as possible since there is coolant tubing blocking the front of the fans so cleaning was not complete. I'm told that these fans turn in the clockwise position, can someone confirm this? Does anyone know the following; 1. is there a sticky that shows how these fans are removed, 2. are these fans one unit or 2 separate, 3. has anyone had a similar problem and knows what to check as a possible solution?
Many thanks in advance.
 

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2007 E320 Bluetec, 2008 320ML CDI
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2,490 Posts
On my '98 the fans turn clockwise as viewed from the front. The right hand fan is powered and the left one turns via a thin belt off of the right fan.
I think there is a thread showing how to remove. Seems relatively uncomplicated as I recall.
Skippy


Sent from phone.
 

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1990 Mercedes-Benz 420 SEL(RIP),1997 Mercedes-Benz E420
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1,936 Posts
Complicated no, tricky perhaps.

After removing the fan, some alignment of the hood may be needed.
 

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2000 E430 (base), 77 450SL, 89 420SEL, 97 E420
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295 Posts
Discussion Starter #4
Thanks, can you tell me under what category of the stickies to look for "removing aux. fans,"?
 

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1999 E55, 2001 E320, 1990 560 SEC, 2004 ML350, 2001 ML55, 1995 S500, 1998 SL500, 2010 E550 Sport zoo
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7,035 Posts
I would check the drive belt - in cases where that breaks it can foul one or both fans:

follow this description originally posted by Matt L:

Unbolt the horn and hood stop. Remove the clips holding radiator to the top core support cross-member (at the top). Unbolt the cross-member. Remove also the part to which the horn bolted. Unbolt the power steering line from the car body - three bolts, two are in front, one is in front of the washer fluid reservoir, and pull this line forward (protect the bumper paint as appropriate). Unplug the fan (you did this already) and unbolt the fan assembly from the radiator - two bolts at the top. Carefully extract the fan assembly from the top; it's a tight fit, and the A/C high-pressure line is in the way.

Once the assembly is out remove the belt by forcing it off one side and turning the motor. The motor bolts into the assembly with three nuts from behind.
 

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2000 E430 (base), 77 450SL, 89 420SEL, 97 E420
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295 Posts
Discussion Starter #6
I think there is a thread showing how to remove. Seems relatively uncomplicated as I recall.
Skippy

I've tried to locate the thread you mentioned, but no luck except for models that are not E class, and several are diesel. I would feel comfortable reading something that applies to my car's configuration.
Thanks for any suggestions,
 

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2001 430T 4Matic, 1999 735iA
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335 Posts
its not that complicated:

once the engine is cold:
remove the upper crossmember above the radiator, the two screws facing inwards of the Locks,

hope this picture helps:


you can see the center piece missing, with the 2 screw holes where it used to be..

remove the Center metal brace infront of the radiator, remove the plastic housing that shields your fingers from the fans - remove the rivets on top, and pull up and out. Then the fan assembly is bare, and you have to remove 2 other rivets, and pull it up and out (Disconnect the leads to the fan, on the upper right hand side (drivers side when standing infront of car..) the Fan assembly is just popped into 2 sockets on the bottom of the engine bay, and secured with 2 rivets..
 

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2000 E430 (base), 77 450SL, 89 420SEL, 97 E420
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295 Posts
Discussion Starter #8
Thanks MeMySelfundIch,
When you say "rivets," do you mean bolts? Otherwise, I understand the balance of what you said.
 

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2001 430T 4Matic, 1999 735iA
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335 Posts
no, its really a plastic rivet - a 4 pronged thingy where you press a plastik stick in, that spreads the "legs" and keeps the rivet in place.. pia to remove!

But I´m not 100% sure if the fans have them, or only the Aircon cooler. If you remove the center top bracket, it is quite self explaining
 

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2000 E430 (base), 77 450SL, 89 420SEL, 97 E420
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295 Posts
Discussion Starter #11
I have one last question before I remove my aux. fans. When the car is off and cool, both fans turn freely in the counter-clockwise position. When I turn them in the clockwise position, they make 3 or 4 revolutions and then bind(?)/stop. When they bind/stop, it takes quite a bit of effort to make them move and in the clockwise position (the way they should be going when employed), but again only make 3 or 4 revolutions. Can someone tell me if their fans move freely in both directions when car is off and cool?
Many thanks,
 

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2000 E430 (base), 77 450SL, 89 420SEL, 97 E420
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295 Posts
Discussion Starter #13
Thanks EDBSO,
Does anybody know what belt (size or part number) drives these 2 aux fans? It's not shown or listed on the diagram of the section in the EPC.
 

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2000 E430 (base), 77 450SL, 89 420SEL, 97 E420
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295 Posts
Discussion Starter #14
I found the MB part # for the aux. fan v-belt; 011-265-7800, $35. at dealer, can be found online as little as $12. The belt has a universal part #940-K6, if you go to the brick and mortar stores.
Thanks again for all the replies.
 
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