Early W210 Blower Motor Regulator Replacement DIY Here...

[JohnnyRock]

W210wagon, your issue sounds very close to what I had. Get up underneath the passenger side and remove the blower regulator. Swap it out with a new unit, shouldn't cost more than $100 or so (try www.azautohaus.com). My car is a '98 C43 AMG so it should solve your problem. Oh yeah, order a new cabin filter while you're at it...and wear eye protection as there is probably a ton of leaves and dirt up in there.

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[W210Wagon]

OK, thanks; I'll try that. I had replaced the cabin filters about a month ago, so I am already good there. Boy, were they nasty. As luck would have it, the fan has been working fine all day today. I hate intermittent problems.

[JohnnyRock]

Originally Posted by W210Wagon

OK, thanks; I'll try that. I had replaced the cabin filters about a month ago, so I am already good there. Boy, were they nasty. As luck would have it, the fan has been working fine all day today. I hate intermittent problems.

No need to wait for it to become permanent. I had the same intermittent problem and then 1 day the thing just refused to work. It's going to happen, so just deal with it now.

BTW, if you already replaced the cabin filter, you'll need all of 6 minutes to swap out your regulator. It sounds like your cabin filter was in a worse shape than mine, so expect your regulator to be covered with leaves, dust and dirt as well. No surprise that they go bad in that type of environment, even if it's an electrical part.

[spookf16]

Tony,
Thanks much for the DIY -- the pictures in particular made it pretty easy, and with one hour's time and a hundred bucks the fan in my E300D now blows like a cat 1 hurricane. Add in that I had a chance to teach my son to solder, and it's a win-win all around.
Matt W.

[tbone006]

TONY - Awesome "Class" .. i love it! Hey a i was wondering does this same blower also supply airflow for the heating in the car? My airflow is almost NON-EXISTANT in my car???
~tbone~

thanks again for sharing your experience with the rest of us on this Forum..it really is helpful!

[W210Wagon]

I just received my new Behr W140 regulator from AutohausAZ and the instructions included with the regulator say it is a W140 and W210 replacement part. I haven't taken the old one out. I planned to work on it tomorrow morning. But I noticed that Tony's photos with this thread show a very short lead wire on the replacement W140 regulator. The one I received has long lead wires which looks more like the OEM W210 unit pictured in this thread. Hmmm. Is the newer replacement just a striaght plug in?

CORRECTION, This morning my wiring is exactly like the wiring in Tony's pics.

[spookf16]

Originally Posted by tbone006

TONY - Awesome "Class" .. i love it! Hey a i was wondering does this same blower also supply airflow for the heating in the car? My airflow is almost NON-EXISTANT in my car???
~tbone~

thanks again for sharing your experience with the rest of us on this Forum..it really is helpful!

Tbone I had the same problem. This fixed hot or cold airflow - you'll be amazed at the difference. BTW got my part from eBay for a hundred bucks. Was well worth it. Good luck.

[tbone006]

Originally Posted by spookf16

Tbone I had the same problem. This fixed hot or cold airflow - you'll be amazed at the difference. BTW got my part from eBay for a hundred bucks. Was well worth it. Good luck.

SPOOKF16 - thanks man!
Ya it has gotten cold quick in my area. This morning both the Heat & Defrost barely worked at all ... no airflow, and my HEAT temp wasnt warm at all .. dont knwo if that was just due to NO airflow at all. So what pieces or parts did you replace exactly ???

thanks again...these Forums are lifesavers! I am also working on a my sunroof not opening, great total instructional on the main forum list..pics & instructions!!

[spookf16]

T-bone,
On Ebay's main page search:
MERCEDES BLOWER MOTOR REGULATOR W210 E320 E300D E420

Two items will come up. I bought the harness for 99.99 + 5 bucks shipping.

This is not an endorsement to buy from this exact seller (though frankly they were timely and the thing works great), but this one piece fixed all my ills. My vehicle is a 97 E300 diesel, and I think this one works for a wide variety of MBs.

Regarding whether or not this would fix all your problems I can't say, but for $105 bucks and two hours of your time, it's probaby a great starting point.

Good luck.

[tbone006]

Originally Posted by spookf16

T-bone,
On Ebay's main page search:
MERCEDES BLOWER MOTOR REGULATOR W210 E320 E300D E420

Two items will come up. I bought the harness for 99.99 + 5 bucks shipping.

This is not an endorsement to buy from this exact seller (though frankly they were timely and the thing works great), but this one piece fixed all my ills. My vehicle is a 97 E300 diesel, and I think this one works for a wide variety of MBs.

Regarding whether or not this would fix all your problems I can't say, but for $105 bucks and two hours of your time, it's probaby a great starting point.

Good luck.

SPOOKF16 - All good brother i am definitely gonna check Ebay out, although i do not have a PayPal account yet. But i looked up on autohaus ... so i will see what i can come up with! Let you all know how it turns out. Next is the damn sunroof !! Arrrrgg

[john.thrasher]

The blower went out in my 2001 MB E-430 a couple of weeks ago. It appears that the climate control unit is still producing heat, but nothing much is coming out of vents due to inoperable blower. Called the local MB dealer and talked with service tech. His quote included repacing Blower Motor Regulator, Blower Motor and Blower Motor Cover: $1,500-$1,600. Decided there must be a better way. Found my way to this forum and the "Tony Fix." However, if I am following thread info correctly my fix may be even easier and less expensive given I should have the "late" or "newer" updated MB original equipment. At autohausaz.com I have priced the following parts:

Behr Blower Motor Resistor/Regulator; Late version with female connector. Part Number: 2108211551 List: $210 / AutoHausAZ Price: $90.37

QUESTION: Is the BLOWER MOTOR REGULATOR/RESISTOR the only part I need to get the blower operable? From reviewing the thread, I am assuming that I will not need to replace the actual blower motor or the blower motor housing cover. See info below from autohausaz.com:

Behr Late Model Blower Motor Assembly with Male Connector.
Part Number: 2108206842. List $300 / AutoHausAZ Price: $231.56

Behr Blower Motor Housing Cover. Part Number: 2108352740
List: $54.71 / AutoHausAZ Price: $40.46

Per rec from thread I also plan to replace Cabin Air Filters:

Mann Cabin Air Filter/Pollen Filter; With Activated Charcoal; At Blower Case Side; Set of 2. List: $72.95 / AutoHausAZ Price: $64.74

DO I HAVE IT RIGHT? ANY SUGGESTIONS? Thanks much.

John
2001 E-430

[tbone006]

OK - So i went on EBAY and found regulator for W210 ... but didnt Tony or someone else mention that a W140 regulator is also compatible ???

[john.thrasher]

In reviewing maintenance records for my 2001 MB E-430 I discovered that I had a similar problem with car in August 2005. At that time, the MB dealership replaced Blower Motor Regulator. The car was under warranty at that time and there was no charge. What got my attention is part number listed: 210-821-15-51. I believe that may be my current problem. I plan to replace Blower Motor Regulator and see if blower motor and climate control starts working. Per the thread rec, plan to have charcoal cabin filters replaced. Being someone with limited DIYer skills, my plan is to order parts from autohausaz and then go to my trusted (non-dealer) garage to do the work. I'll report back to let you know if I am successful.

JT

[tbone006]

Originally Posted by spookf16

T-bone,
On Ebay's main page search:
MERCEDES BLOWER MOTOR REGULATOR W210 E320 E300D E420

Two items will come up. I bought the harness for 99.99 + 5 bucks shipping.

This is not an endorsement to buy from this exact seller (though frankly they were timely and the thing works great), but this one piece fixed all my ills. My vehicle is a 97 E300 diesel, and I think this one works for a wide variety of MBs.

Regarding whether or not this would fix all your problems I can't say, but for $105 bucks and two hours of your time, it's probaby a great starting point.

Good luck.

SPOOKF16 -- So i am assuming you got a direct W210 replacement regulator @ $99 ??? When i look at Tony's tutorial thread ..he used a W140 Regulator, and adapted the "pigtail" connector from his W210 Regulator. I found the W140 regulator on EBAY and it is even cheaper than W210 direct replacement..only $49 - $65 and looks exactly like the one in Tony's Tutorial thread. Just wanna make sure i am getting the BEST Regulator whiel i am doing this. Someone also said that the W140 Regulator blew like a Cat-1 Hurricane after install... is it more powerful or allow more airflow than a W210 Regulator? I think i am going with the W140 as to follow the Tony tutorial .... thanks for all your assistance & info SPOOKF16 & teh rest of you guys !!!

Please respond back ASAP if you have any helpful or urgent info in regards to this Blower Regulator issue ...aloha!!!

[tbone006]

Originally Posted by W210Wagon

I just received my new Behr W140 regulator from AutohausAZ and the instructions included with the regulator say it is a W140 and W210 replacement part. I haven't taken the old one out. I planned to work on it tomorrow morning. But I noticed that Tony's photos with this thread show a very short lead wire on the replacement W140 regulator. The one I received has long lead wires which looks more like the OEM W210 unit pictured in this thread. Hmmm. Is the newer replacement just a striaght plug in?

CORRECTION, This morning my wiring is exactly like the wiring in Tony's pics.

W210WAGON - Were you able to change out the Regulator yet? I have my finger on the trigger on EBAY, waiting to see if the W140 Regulator is the REAL DEAL. holler back and let us know how you are doing on your repalcement!! Later
~t-bone~

[tbone006]

Let me just say first off .. HOOOOOOOOOOOOOOOLY SHEEEEIT !!!
Just got done following teh Tony Tutorial using teh W140 S-Class regulator. Wooooooo-dawwwwwgy that thing blows air like a HURRICANE brother !!!!
Tutorial explained it EXACTLY and it was super EZ .. once I recvd the part...literally took me two hours max to complete!! My Dad handled the soldering, and i installed ....hahahahahahahaa... i couldn't stop giggling as my AC/HEAT system worked like NEVER BEFORE !!! I dont know if the W140 regulator allows more airflow or what ...but it Defrosted & Heated up my car in minutes !!! My kids & Wifey are happy to put it mildly ... "Daddy ..i cant see my breath anymore" .. that about says it all !!!

BIG BIG THANKS To TONY & All teh others here that shared their knowledge & experiences witht his issue.

ON TO THE SUNROOF NOW !!

Aloha !!
~t-bone~

[A.T.C.]

Just an FYI. I bought the part for $35.00 from ebay. Quick, easy, cheap fix.
Thanks for the write up.

[tbone006]

Nice ATC .. i bet you had a big azz grin on your face when you hit the controls for full blast

[soc993]

Finally got around to tackling this repair thanks to Tony's excellent step-by-step instructions. Blower had been getting weaker & weaker until it wasn't moving any air. Spliced in part #1408218451 ordered from AutoHausAZ for $160 and our '98 E320's blower is back in operation. This is a far more economical fix than having the local European car shop (or MB dealer) replace the motor, housing & regulator, as it's doubtful they're aware of this alternative. For anyone who's hesitant to take on this small project don't be - I don't have much experience doing this sort of thing but Tony's play-by-play is easy to follow. IOW, if I can do it chances are you can too. I guess when cars get around the 240,000 mile mark things like this may start to go. Luckily it's a relatively simple and not too expensive job.
Thanks again Tony!

[107123210]

For what it's worth, I found the 140 blower regulator at FCP Groton. (fcpeuro.com) When I entered 1408218451, it came up with the regulator, but with number 1408218351. But this is the part number that some have used. So I have placed order. Cost is $58.64 and you can use a coupon to get 15% (SPRING15) discount. They also have the filter sets (2 parts) for $22.99 (part #2108301018 which is no great bargain, but at least parts can be shipped together. They have great shipping to Canada for those up North.

I bought regulator from fcpgroton on ebay - About $35 incl shipping within USA.

[skyrocket2]

Originally Posted by skyrocket2

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 Allen bolt. (it seams to work ok)
Regulator came from www.worldcarparts.co.uk.

mine is still working no problem as yet!

[107123210]

Installed the 140 regulator on our 98 W210 today. Easy enough job. I used crimp connectors instead of soldering (I am wintering in USA away from my tools. But Harbor freight came to rescue for the few tools I needed!)

Can't believe how much air flow I now have. Can't recall it ever being like that and we have had car since 2001.

Thanks to all who provided this thread.

[skipsantos]

I believe I have to replace my blower regulator on my 99 E320. After reading the forums, I have found that the replacement regulator ranges in price from $30 - $160. Any guidance or recommendations as to which unit will suffice would be appreciated. Thanks.

P.S. I did this duirng Feb 2011 and purchased the part from Importec for $69.95. I am interested in looking for a part that may last a little longer.

[AMGDave]

Originally Posted by skipsantos

P.S. I did this duirng Feb 2011 and purchased the part from Importec for $69.95. I am interested in looking for a part that may last a little longer.

What was the brand of the regulator that failed in 13 months...? Just out of warranty, ouch!

[bryanchar]

I just bought a 1998 E430. Noticed when I bought it the blower was not putting out much. I ordered the part as described in this thread on Ebay. The part was $36.50. I was a little nervous but the fact the thread had pictures made this repair easy. I soldered the small wires but the big wire was too much for my soldering iron. Just used a but connector. Blower works great now. Thanks so much for this.

One interesting note, the vendor supplied the "modification" instructions. When I opened them they were the same pictures and text from this thread.