tick tick

[up2u]

hi guys been quite a nice summer so far the cars been great cool in the sunny days and warm in the cold nights !!
but i now have a problem from inside the dash of the car when i turn the key to start her up from behind the dash comes this tick tick for about 16 to 20 seconds and then stops if i stop and restart it dose it again can someone help please it driving me mad
thanks yours arch

 

[BlackC55]

One of the heater directional motor gears has broken. Common and be covered on here many times.

It needs to go on a Star diag machine to determine what motor it is.

Its a labour intensive job to fix too.

 

[Gaz74]

My car does it, it's fixable but will cost from around £600 to around a grand to sort it and get rid of the noise as most of the dash has to come out. I've learnt to live with it....

 

[horgantrevor]

i know it means the whole dash out but how long is this job to do for future reference

 

[Gaz74]

I spoke to my boss's son, a tech at Mercedes, and he said the book time is around 10 hours, maybe a bit less. He also said that the parts that usually fail, the stepper motors, haven't been upgraded and he has seen cars come back a year or so later with the same problem.

 

[sjmaxwell]

Find an independant to do the job it can be a lot cheaper and they have worked ways out of getting to some of the motors/gears without a full dash out job

 

[up2u]

hi guys just had time to look at the sepper motors in the manual (nightmare ) hears the thing has anyone got pic`s of the thing when it`s out !! fingers crossed
cheers up2u