i have the common C320 clicking noise behind the vent, we changed M2/10 motor and M2/11 motor and check linkage , they are all okay, still getting clicking noise behind the dash the sound seems from left side or center.

i am looking for a professional in houston or anyone of you had this problem before and can recomend a mechanic.

The C320 has 10 Actuators unlike the C240, which makes it difficult to figure out the problem.

Thanks.

if the sound gets louder and ticks faster as you accelerate then it could be the infamous piece of insulation material that rubs on the driveshaft.

nice wheels on your C very original and that supra is hot any other pics of it???

check out Sunil @ motorwerks just opened, on here as sunman

the sound go away after a minitute to two , and sometime i just open and close th switch a couple of time to get rid of the clicking behind the dash.

i will check with Sunil

Thanks all.

Sunil at Motorwerks is the best..he had worked on my CLS and very impressive and great job..Call him at 832-419-8084 (cell) or 713-781-0444 (office) and refer my name "MOBI" ...he only works on European cars...hope that helps

yes , its going to the shop tomorrow.

He is the guy for the job.

Thanks all for your help.

Hi,
Could you please let me know what they do to fix the clicking noise as ours does the same and only lasts for approx 1 minute
Thanks

they have to take the dash out, the C320 has 10 motors for the AC , and the bad MB design that these motors and the linkage for each motor breaks.
So Sunil did this job several time and every MB c class owner has this problem , no way you can run away from it.
The problem is the dealer is too expensive, i was lucky to bargain 8 hours of work with MB dealer in Sugar Land plus parts, Sunil gave me a better deal. Usually MB dealer will charge 10 hours 100 usd/Hr.
The car will be in shop tomrrow and as soon as i get it i will let you know but he sounded solid and experienced in MB and BMW. i went to his shop today and i saw some of the work they do, they do heavy stuff, engine reapir, transmission and custom work, i was satisfied from what i saw.

i do not hear the clicking noise anymore , but sometimes when i change air direction i hear the motor moving not clicking noise.
i will test further this week.

Thanks all for your feedback, the car is in perfect shape now.

Thanks all for your feedback, the car is in perfect shape now.

12

glad everything worked out

Looking for a professional in the Las Vegas-Henderson area who can do the repair on my MB. I understand there are 10 stepper motors on this model. Thanks for your help