dsldave1973

Is there a blend door calibration ? if so is it something you can do at home or is it a dealer only thing to get done ??? t
thanks in advance for any help
Dave

Maj. Dundee

It is included in the instructions, but many have installed them without the calibration.

IgorE350

.How is it calibrated? i installed mine without doing any calibration, but what i noticed is when i turn the knob half point on the hot side it blend door opens all the way, there is no point to turn it all the way to the right because the actuator will be keep trying to open the flap more but it wont go nomore. Probably that is why they go bad so often.

Maj. Dundee

With Star Diagnosis, which you no not have.

IgorE350

Yep, do not have that

Maj. Dundee

Igor, when you received the new motor, did you connect it to see if it worked without it being in place? If you did that is a big no no because it is set to zero at the factory

IgorE350

No, i didnt do nothing to it, just installed it in a position it came in. and it was MB part. I guess the knob was not in the same position when installed.

Maj. Dundee

Did you remove the air bag to install (incorrect) or did you remove the top portion of the Inst. Panel to install it?

IgorE350

I pushed up the whole right side of the dash up and unscrew 4 nuts on the airbag and pulled it off the 4 bolts and gout it aside but didnt unplug airbag plugs. Why you ask?

Maj. Dundee

What knob are you referring to?

Because you were supposed to completely remove the upper section skin to avoid any damage.

IgorE350

I had the panel up on the right side and it wasnt on the way at all, i didnt do any damage everything works fine but the knob that you control cool and heat is not in sync with a actuator.
when i installed if i eather had to have all the way to cool, or all the way to hot or in the middle.

Maj. Dundee

As long as the car was not running, the position of the temp. dial has nothing to do with your problem. But the condition of the white lever does. Was it installed correctly to the motor and was it not broken.

You might have to look at the motor again.

IgorE350

The motor itself is different on my 2001 ml55 and the plastic arms are ok and everything moves free, nothing broken. Engine wasn't running. I will take the glow compartment off and check everything one more time. will take pictures and maybe a video.

Maj. Dundee

Only the levers matter.

If there is nothing wrong with the installation, I would get a used Denso A/C Controller from ebay

Remove both covers under the I.P. Under the left side of the console the controller is held in place by one screw. Remove the controller from the right side. After installing it,first test it without reinstalling everything

IgorE350

will check the levers first when i get to it and then if everything checks out there,i will replace the A/C control, already found one on ebay.
BTW, i noticed that my windshield gets really foggy if i dont run A/C, maybe that is a symptom of something? Thank you mr Dundee for all ur help!!! hope you not tired of me yet.

Maj. Dundee

When you check the movement through the glove box, note that it will operate with a slight delay. Start in the off position then select A/C and carefully note the movement.