Stepper motors and clicking noise W203 C200 kompressor estate

[kg9]

Just finished the repair to the stepper motors on my C200 ( 2003). Usual complaint, clicking started on turning the ignition key and continued for 40 secs + no air coming from passenger foot well.
A big thank you to all members who posted instructions for this horrible job, couldn’t have completed it without those instructions.
A couple of points that may help any members who want to take on this job.
1,quotes ranged from £550- £1100 at the main dealer
2. Parts OEM linkage kit bought from main dealer (£48).
3 . stepper motors from main dealer quoted at £148:each. So bought 2 from Ebay at a cost of £15 ea
4. Follow the instructions on the website and store all screws etc in plastic takeaway boxes labelled with location
5. It’s possible to remove the 2 stepper motors without removing the radio cage but for ease I removed this item. It’s difficult due to two lugs that hold the item onto the metal bar. Using 2 flat blade screwdrivers and working on alternate sides I eventually prised it out. ( Replacing was to difficult so I snapped the lugs off with long nosed pliers . ( it’s held in with screws on replacement)
6. Foot brake cable was difficult but you have to perserve

Eventually the problem was in the internal cogs on one of the stepper motors - see photos- so I now have an OEM unused linkage / actuator kit and a stepper motor. These are free to anyone wanting them. Just provide postage
Good luck if you start this job

 

[kg9]

Stepper Motor. AGAIN
having changed one motor I should have changed the other at the same time ( I think there are only 2 on the C200 petrol)
Same pig of a job but this time instead of the cog inside the motor breaking it was the spindle inside the motor that had snapped. See photos attached . It’s the small black spindle at the bottom of the photo

 

[johnsco]

Thanks kg9 for your helpful posts.
It's not been your lucky year.
Every time I turn the switch in the C200, I'll be listening for the clicking.

 

[SnowBear57]

Thanks kg9 for your helpful posts.
It's not been your lucky year.
Every time I turn the switch in the C200, I'll be listening for the clicking.

it is a job I have to do and are not looking forward to. Do you by any chance have the name of the eBay seller that you got the actuators from

 

[Udders]

Hi, are the stepper motors the same as CLK ones?
If so would you mind posting a link to them on eBay please.
Thanks.

 

[SnowBear57]

Just finished the repair to the stepper motors on my C200 ( 2003). Usual complaint, clicking started on turning the ignition key and continued for 40 secs + no air coming from passenger foot well.
A big thank you to all members who posted instructions for this horrible job, couldn’t have completed it without those instructions.
A couple of points that may help any members who want to take on this job.
1,quotes ranged from £550- £1100 at the main dealer
2. Parts OEM linkage kit bought from main dealer (£48).
3 . stepper motors from main dealer quoted at £148:each. So bought 2 from Ebay at a cost of £15 ea
4. Follow the instructions on the website and store all screws etc in plastic takeaway boxes labelled with location
5. It’s possible to remove the 2 stepper motors without removing the radio cage but for ease I removed this item. It’s difficult due to two lugs that hold the item onto the metal bar. Using 2 flat blade screwdrivers and working on alternate sides I eventually prised it out. ( Replacing was to difficult so I snapped the lugs off with long nosed pliers . ( it’s held in with screws on replacement)
6. Foot brake cable was difficult but you have to perserve

Eventually the problem was in the internal cogs on one of the stepper motors - see photos- so I now have an OEM unused linkage / actuator kit and a stepper motor. These are free to anyone wanting them. Just provide postage
Good luck if you start this job

Do you still have the instructions as I have to go through this misery I think I have two dodgy ones

 

[SnowBear57]

Do you still have the instructions as I have to go through this misery I think I have two dodgy ones

I didn't have any instructions, I couldn't find any anywhere, If I am honest I haave started this project 3 times now but my health just wont let me finish, I just get too much pain, so I end up reinstalling everything just so I can move the car.
It is certainly not a job for the fain-hearted!
If you do come across any instructions please share.

 

[123sean]

you tube but deffo not for the faint hearted [had 4 gone on mine ] got spares from merc of edinburgh with discounts