Can you post the part number?

I can't find it on Auto Parts at AutohausAZ - OEM Auto Parts - Discount Replacement Parts, Resources and Car Care Tips when searching under Crossfire or SLK.

 

The part number is shown in post #15 in this thread, photo #1.

or at AutohousAZ

 

$56.80 with free shipping

 

Thanks, the photos weren't loading for me before, but are now.
The part number is
2108206210U or 2108206210


For what it's worth, the part number you linked from Amazon has been shown to work in a Crossfire, but it makes the fan speeds higher than the stock part. https://www.crossfireforum.org/forum...ere-get-2.html
Based on that, I'll spend the extra $20 and hopefully get the correct part.

 

I ordered and installed the Uro part from Autohaus.

With help from the video it was about a 15 minute job. If I had known it was that inexpensive and easy to fix, I would have done that a year ago when I noticed the fan acting strange. The Uro part appears to be an exact match and the fan speeds seem to be the same compared to stock.

 

I just noticed my fan goes higher on all speeds then drops down to where it supposed to be.. the will stop working completely until I jiggle the ***.. guess I need to order one.

 

Any news yet?
We await with great anticipation.

 

Hey,

I recently followed yours and another members helpful how to entitled Crossfire Blower Motor and Resistor Bench Test. I found it quite helpful.

As per the write-up, I used a multi-meter to test my battery - 12+ volts, despite being the original battery.

Then checked all the prescribed fuses - which checked out. I then applied power and ground from the battery to the connections on the blower motor which caused it to spin. Finally, I checked the Control Module output. On fan speed #5, I got 7.26V.

As such, I have concluded that like others, the Blower Motor resistor is the culprit. Has anyone had any problems with the URO part? I have heard they are not good quality

Thanks for the write-up, I have found this forum to be an invaluable resource,

Brewski

 

I have built the test circuit and get a good PWM range response in both +12VDC to +15VDC with a simulated load. NOTE: the fan will run at the same speeds with the engine running and not as the PWM percentages of voltage vs. duty cycle output to the fan are proportional to the voltage increase. The control voltage does NOT change with the engine running or not. It remains constant depending upon the selector position. Full off is 0VDC and full on is ~+7VDC.

Example: At +15VDC, the PWM Duty Cycle output of ~75% at +12VDC will output ~98% PWM Duty Cycle at ~+10VDC. This means that regardless of the voltage supplied to the fan controller, the PWM duty cycle should never exceed 100% and total power to the fan will also never exceed 100% of +12VDC.

This is my proposed circuit. All components, including board manufacture can be sourced for less than $12 per board in batches larger than 100. This excludes the "custom" fan control socket for connecting to the existing wiring harness plug. I have yet to find the type of plug with the proper pins to make it work. The other option is to source the pins by themselves and just solder them to the board with the appropriate spacing. All of this cost does NOT include assembly.



A small "Test" batch of 10 to 20 boards would spread out the setup cost, which is usually about $100. So we are looking at prototypes complete for about $30 to $40 in this small of a batch. If there is enough of a response, I would be willing to build the first "Test" batch and ship them.

I still have to build the first prototype to test the thermal requirements of the MOSFET heat dissipation and verify the heat sink will be necessary and cost effective. This is also pending the connector and/or pins for the factory plug.

UPDATE: I have found another MOSFET that can handle up to 23 Amps of power at 30VDC without a heat sink other than the board copper. With the load spread between TWO of these as in the circuit diagram and with the voltage never exceeding 15VDC, this should be able to handle the power load even at the highest fan speed setting without a heat sink! These can be sourced at ~$1.00 each at 10+ quantity.

On the BMW side of the isle, they have the same issue, but it would require a different plug to connect to their harness.

Like anuses, everyone has an opinion. Let's hear yours.

 

I'm in for one. Put me at the top of the list.

 

Looks good to me too.
( how about a 300 HP DC motor, lithium batteries and a controller to replace the V6 ? )

 

That does not sound quite right somehow.

 

LOL... I was going to give him a free pass on that statement.. None of my business as I see it..


Or should that be "as I prefer not to see it" ??

 

perhaps you are correct, I would like to retract that ( matter of fact, I did )

 

Count me in for one. I'm getting the high blower speed on most all settings until I jiggle the ****, then it settles into the correct speed.

 

More people should step up and get this unit. When your fan controller goes on the blink you'll be glad you did.

Get one now and save the agro later.

 

OK .... after getting the OK from our GODFATHER (Dave - OneHundred80), put me down for one. And believe it or not I didn't have to kiss his ring ... or anything else for that matter ... LOL

 

I read something about the regulator going out shortly after I bought my Crossfire so I bought one Nov. 26, 2011. Have it at the ready for when mine eventually goes out. My A/C blower was acting strange when I test drove my car on Sept. 24, 2011...still acting strange, but still works...

 

I've not tested it, but today the fan was off/on, then simply off. I certainly think $30 to$40 is more than fair. My only concern is will this version fit where the old regulator is?

My 51K miles '07 XF arrived last Wednesday with a dead hood strut. It's been replaced, and as commented above, today the fan eventually quit woking - and it's hot here. I need my A/C.

Put me down for one providing the prototype works as expected.

 

MMZ-TimeLord
I think a new post is warranted, so that a list can be made up. This thread can be bumped but it will not show the group buy until someone looks for it.
BUMP