Early W210 Blower Motor Regulator Replacement DIY Here...
#76
Junior Member
Picture IMG 0895.JPG
Tony, This a great instruction E-Mail. Could you resend the picture, IMG 0895.JPG. When I open it, it only shows the upper 1/3 of the picture.
Thank you for your help.
J Nolen
Thank you for your help.
J Nolen
#77
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2017 GLE350, 2009 ML350 4matic, 2005 4maticWAGON (sold), A Pre-facelift W210(sold)
[QUOTE=nolen01;2876889]Tony, This a great instruction E-Mail. Could you resend the picture, IMG 0895.JPG. When I open it, it only shows the upper 1/3 of the picture.Thank you for your help.
J Nolen[/QU
thanOTE]
I got my part in today and couldn't view most of the pictures...could this be a temporary problem with the site...or the image files are currupted.
\
Does anyone know where I can fine the images...since Tony don't frequent this site anymore...thanks
J Nolen[/QU
thanOTE]
I got my part in today and couldn't view most of the pictures...could this be a temporary problem with the site...or the image files are currupted.
\
Does anyone know where I can fine the images...since Tony don't frequent this site anymore...thanks
#78
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2010 C300 4Matic Sport
There is another way to replace the blower motor regulator in 1996-97 W-210that doesn't require buying a new blower motor, regulator, air box cover and wiring adapter or buying a regulator for the W-140 and splicing it into the old wiring harness.
K-A-E make a blower motor regulator (resistor is their term for it) that is a direct replacement for the old style that is no longer available from MB. It is part # K-A-E 3.701.420. Although the base plate of the regulator is slightly larger and differently shaped from the original part the screw holes line up perfectly and and the wiring harness is direct plug and play into the original motor and chasis wiring harness.
I recently installed this unit in my 97' E320 and it works perfectly, in fact, I think the new unit blows a bit more air at the upper settings than the old one did. I removed the blower motor from the dash to make the installation but I think this unit could be installed by simply removing the underdash pad and the airbox cover and leaving the motor and blower fan installed. I found mine on eBay from All European Auto Supply
http://www.alleuro.com/
K-A-E make a blower motor regulator (resistor is their term for it) that is a direct replacement for the old style that is no longer available from MB. It is part # K-A-E 3.701.420. Although the base plate of the regulator is slightly larger and differently shaped from the original part the screw holes line up perfectly and and the wiring harness is direct plug and play into the original motor and chasis wiring harness.
I recently installed this unit in my 97' E320 and it works perfectly, in fact, I think the new unit blows a bit more air at the upper settings than the old one did. I removed the blower motor from the dash to make the installation but I think this unit could be installed by simply removing the underdash pad and the airbox cover and leaving the motor and blower fan installed. I found mine on eBay from All European Auto Supply
http://www.alleuro.com/
#79
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1998 E430
Mine went bad and I was having a whine noise coming from my motor, so I decided to replace the it with the redesigned unit. I got the motor, cover and resistor for $400. I put it in at halftime of the laker celtic game #5, and it works great! I was going to modify it but when I heard the motor I said "screw it" and got the new unit and man is it quiet, came with a one year warranty, that's what put me over the top on it. who wants to buy all my old stuff?...........j/k
Last edited by azurE430; 06-12-2008 at 11:19 PM.
#80
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2017 GLE350, 2009 ML350 4matic, 2005 4maticWAGON (sold), A Pre-facelift W210(sold)
I finally got to see the images, must have been problem with the website initially. Got mine fixed with the W140 part...Easy fix..now Air Blows but not coolin....My mechanic said, I have a leak in my condenser...
uhmmmmm....
I guess one more to go.
thanks Tony for posting that mod.
uhmmmmm....
I guess one more to go.
thanks Tony for posting that mod.
#81
Man, I'm stumped.
I bought the KAE replacement (140-821-8351); wired it up and soldered everything really nice but when I went to plug it in - it was "live", even though the car was off.
So I did some research and found one pther post which had the same issue - and the poster reversed the blue and black wire and it worked.
Sooo I did that too, and same problem - power to the blower even though the car is off.
So my problem is I'm getting power when I plug the harness back in, even though the car is off.
I triple checked everything - I mean it's a basic project; black to black, red to red, yellow to yellow.
WTF happened? 98 E320
I bought the KAE replacement (140-821-8351); wired it up and soldered everything really nice but when I went to plug it in - it was "live", even though the car was off.
So I did some research and found one pther post which had the same issue - and the poster reversed the blue and black wire and it worked.
Sooo I did that too, and same problem - power to the blower even though the car is off.
So my problem is I'm getting power when I plug the harness back in, even though the car is off.
I triple checked everything - I mean it's a basic project; black to black, red to red, yellow to yellow.
WTF happened? 98 E320
#82
Member
Did any of you folks got this regulator from Deutsche Parts USA? They are selling one for $129.00. I need to do mine too.
http://cgi.ebay.com/ebaymotors/MERCE...spagenameZWDVW
http://cgi.ebay.com/ebaymotors/MERCE...spagenameZWDVW
#83
As an update to my above problems - it was in fact a bad regualtor. The regulator was "Open" and when connected to the harness, it would engage the motor even though power was off.
So for research purposes -
If you wire the replacement regulator and the motor turns on when you plug in the harness (even though car and air power is off), you got a bad regulator.
Don'y try to re-wire it different or do any further diagnostics. Simply return the regulator for a new one.
Mine is all better now and blowing like a *****
So for research purposes -
If you wire the replacement regulator and the motor turns on when you plug in the harness (even though car and air power is off), you got a bad regulator.
Don'y try to re-wire it different or do any further diagnostics. Simply return the regulator for a new one.
Mine is all better now and blowing like a *****
#84
Tony, Somebody help!
Hi there,
I have '99 E300 TD.
Blow mortor is weak, so I was hoping to use W 120 replacement regulator to fix the problem.
I got the KAE replacement part but when I took out the Blow Mortor Assembly, I found a Behr A210 821 15 51 regulator plate - see attched photo. I can't attched the replacement regulator!
What are my options? Any advice?
Thanks and regards
Dominic
I have '99 E300 TD.
Blow mortor is weak, so I was hoping to use W 120 replacement regulator to fix the problem.
I got the KAE replacement part but when I took out the Blow Mortor Assembly, I found a Behr A210 821 15 51 regulator plate - see attched photo. I can't attched the replacement regulator!
What are my options? Any advice?
Thanks and regards
Dominic
#85
Member
This thread sure came in handy. Took my time and just got it done. $170 and some time is a whole lot better than $800-$1000!
Here's a picture of what's inside that regulator. That plus some wires hardly seems to justify the $170.
Here's a picture of what's inside that regulator. That plus some wires hardly seems to justify the $170.
#86
Newbie
ebay part 1408218351
Did any of you folks got this regulator from Deutsche Parts USA? They are selling one for $129.00. I need to do mine too.
http://cgi.ebay.com/ebaymotors/MERCE...spagenameZWDVW
http://cgi.ebay.com/ebaymotors/MERCE...spagenameZWDVW
Below you will find the link to the part that was supplied to me for 89$ from Deutsche Parts...
http://cgi.ebay.com/ebaymotors/ws/eB...TQ:MOTORS:1123
I installed as above and the AC and fan worked perfectly. One important note; someone above made a remark about the slight humming noise their fan was making. I need to tell you mine made that noise as well which made me think maybe there was a problem with the fan (blower) as well. Needless to say, the blower works just fine and it was ONLY the regulator fix that solved ALL problems I was having. Feel free to contact me if you have any questions...
Thanks all...
Randy
#88
Worked GREAT!
Thanks TONY, the DIY regulator fix works great. My son and I did it in under 1 hour. He had the fun job of squeezing under the dash between the seat and I handed him the tools. The soldering was a breeze as were the cool results!
Tim & Allen
Rhode Island
Tim & Allen
Rhode Island
#89
Works!
Thanks!
Not being a DIY guy, I ordered the part, took the instructions to my shop and had them do the work.
Charged me an hour labor.
They were very impressed with the process and said they will offer t as an option to customers.
Not being a DIY guy, I ordered the part, took the instructions to my shop and had them do the work.
Charged me an hour labor.
They were very impressed with the process and said they will offer t as an option to customers.
#90
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97 E Klasse 420 Sport/ 90 Honda Accord EX/97 Impreza Coupe
umm can someone help me here? i think i may have gotten a revised blower for the 210.
my old blower assembly. has one connector
new blower assembly. has 2 connectors and a ground
part number.
can some one shed some light one this?
my old blower assembly. has one connector
new blower assembly. has 2 connectors and a ground
part number.
can some one shed some light one this?
Last edited by Eklass420Spt; 11-19-2008 at 12:18 AM.
#91
IT WORKED! Another satisfied customer :-)
Thanks Tony, you just saved me a ton of money - You da man!
I ordered the regulator from AutoHaus after the blower which used to only run at half speed finally gave up the ghost and stopped working all together. Since it had operated first at full speed, then for so long at half speed, and then finally wouldn't blow at all, it made sense that it was most likely the regulator and not the blower motor itself.
The whole process took me about an hour, but only because I got a little OCD on the soldering.
Thanks again! A forum is only as good as its members and this one is GREAT!
I ordered the regulator from AutoHaus after the blower which used to only run at half speed finally gave up the ghost and stopped working all together. Since it had operated first at full speed, then for so long at half speed, and then finally wouldn't blow at all, it made sense that it was most likely the regulator and not the blower motor itself.
The whole process took me about an hour, but only because I got a little OCD on the soldering.
Thanks again! A forum is only as good as its members and this one is GREAT!
#92
Many Thanks From Italy
Thank very much, with this DIY you have solved my problem with the blower regulator.
This is the power of the WEB and the Availability of person.
I can save a lot of precoius Euro's.
Best Regard
Magnificat
This is the power of the WEB and the Availability of person.
I can save a lot of precoius Euro's.
Best Regard
Magnificat
#94
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Mercdes 1996 E320
1996 E-320 ELEGANCE
<o:smarttagtype namespaceuri="urn:schemas:contacts" name="GivenName"></o:smarttagtype><!--[if gte mso 9]><xml> <w:WordDocument> <w:View>Normal</w:View> <w:Zoom>0</w:Zoom> <w:PunctuationKerning/> <w:ValidateAgainstSchemas/> <w:SaveIfXMLInvalid>false</w:SaveIfXMLInvalid> <w:IgnoreMixedContent>false</w:IgnoreMixedContent> <w:AlwaysShowPlaceholderText>false</w:AlwaysShowPlaceholderText> <w:Compatibility> <w:BreakWrappedTables/> <w:SnapToGridInCell/> <w:WrapTextWithPunct/> <w:UseAsianBreakRules/> <wontGrowAutofit/> </w:Compatibility> <w:BrowserLevel>MicrosoftInternetExplorer4</w:BrowserLevel> </w:WordDocument> </xml><![endif]--><!--[if gte mso 9]><xml> <w:LatentStyles DefLockedState="false" LatentStyleCount="156"> </w:LatentStyles> </xml><![endif]--><!--[if !mso]><object classid="clsid:38481807-CA0E-42D2-BF39-B33AF135CC4D" id=ieooui></object> <style> st1\:*{behavior:url(#ieooui) } </style> <![endif]--><!--[if gte mso 10]> <style> /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshowes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} </style> <![endif]--> I have a 1996 E-320 ELEGANCE Registered on 01-AUG-1996 and have just changed the fan blower regulator (see pictures) you will need to grind some of the heat sink pins of to get to fit, also you will need to drill and tap a new hole for the new regulator,
Drill size is 3.3mm and the tap is a 4mm I replaced the torx bolt with an <st1:givenname w:st="on">Allen</st1:givenname> bolt. (it seams to work ok)
Regulator came from www.worldcarparts.co.uk.
Drill size is 3.3mm and the tap is a 4mm I replaced the torx bolt with an <st1:givenname w:st="on">Allen</st1:givenname> bolt. (it seams to work ok)
Regulator came from www.worldcarparts.co.uk.
#95
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1996 e-320
Hey guys. This fix went perfectly. I used the KAE part from Autohausaz, at $170.oo.
Must be a run on that part since the price came up a little.
After looking over the old part I realized why it didn't last. The part was French made. Not only that, but the heat sink portion is nearly 1/2 the size of the KAE part (which is german).
Benz aught to know better that that.
Anyways, like another poster sez. "It'll blow yer hat off!"
This fix was on a '96' E-320. It got cold in the Chitown winters up here. Thankful I found this fix before I gave up and paid for repairs.
Must be a run on that part since the price came up a little.
After looking over the old part I realized why it didn't last. The part was French made. Not only that, but the heat sink portion is nearly 1/2 the size of the KAE part (which is german).
Benz aught to know better that that.
Anyways, like another poster sez. "It'll blow yer hat off!"
This fix was on a '96' E-320. It got cold in the Chitown winters up here. Thankful I found this fix before I gave up and paid for repairs.
#97
another option for blower regulator replacment
There is another way to replace the blower motor regulator in 1996-97 W-210that doesn't require buying a new blower motor, regulator, air box cover and wiring adapter or buying a regulator for the W-140 and splicing it into the old wiring harness.
K-A-E makes a blower motor regulator (resistor is their term for it) that is a direct replacement for the old style that is no longer available from MB. It is part # K-A-E 3.701.420. Although the base plate of the regulator is slightly larger and differently shaped from the original part the screw holes line up perfectly and and the wiring harness is direct plug and play into the original motor and chasis wiring harness.
I recently installed this unit in my 97' E320 and it works perfectly, in fact, I think the new unit blows a bit more air at the upper settings than the old one did. I removed the blower motor from the dash to make the installation but I think this unit could be installed by simply removing the underdash pad and the airbox cover and leaving the motor and blower fan installed. I found mine on eBay from All European Auto Supply
http://www.alleuro.com/
K-A-E makes a blower motor regulator (resistor is their term for it) that is a direct replacement for the old style that is no longer available from MB. It is part # K-A-E 3.701.420. Although the base plate of the regulator is slightly larger and differently shaped from the original part the screw holes line up perfectly and and the wiring harness is direct plug and play into the original motor and chasis wiring harness.
I recently installed this unit in my 97' E320 and it works perfectly, in fact, I think the new unit blows a bit more air at the upper settings than the old one did. I removed the blower motor from the dash to make the installation but I think this unit could be installed by simply removing the underdash pad and the airbox cover and leaving the motor and blower fan installed. I found mine on eBay from All European Auto Supply
http://www.alleuro.com/
Last edited by Wooly; 03-07-2009 at 03:41 AM.
#98
Question for Hicks97
Awesome article Tony. Thanks for posting it. My problem sounds a little different. My HVAC system is highly temperamental. Some days it doesn’t blow at all. Some days it only blows at full blast and no amount of button pushing will stop it except to turn it completely off. And some days it will warble fast to slow very rapidly. Do you think replacing the regulator will solve this issue? I’ve lived with it this way for 3 years and with winter coming the idea of not having heat some days is looking less appealing. I have a 1998 E-320 (W-210).
liebeskind
#99
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1998 E300 Turbodiesel-drove for ten years/165k miles
I figure Dominic Chang has already figured this out, but I have his same type of regulator, in an E300TD manufactured in June 97 as a 1998 model. The car has 162k miles on it, and going strong except for an extremely weak fan. I'm hoping this does the trick. Just ordered the part (after buying the WRONG earlier version on Ebay) from Autohaus AZ. My receipt from them is for the following:
2108211551 Blower Motor Resistor/Regulator; Late Version with Female Connector</pre> Perhaps this will help someone avoid the problem I've had. Again, the regulator for a 1998 Model E Class Mercedes is pictured above in Dominic Chang's post.
2108211551 Blower Motor Resistor/Regulator; Late Version with Female Connector</pre> Perhaps this will help someone avoid the problem I've had. Again, the regulator for a 1998 Model E Class Mercedes is pictured above in Dominic Chang's post.
#100
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1998 E300 Turbodiesel-drove for ten years/165k miles
Just Installed It...
Just put in the part from AutoHaus AZ, the curved plate with what they describe as a "female" connector. Blows great. Got sparks a couple of times while taking it out, though...I would highly recommend pulling the back seat and disconnecting the battery before removing the old one. My battery (positive side) needed an open end wrench in a metric size that I didn't have on hand, but I found the correct one in the trunk mounted toolkit in my little BMW convertible (!)