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Registered 2005 SLK55 AMG
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Discussion Starter #1
Key turned to 'accessories' (all dash lights on) prior to crank position, and there is a noticeable whirring and clicking sound, apparently from behind instrument cluster. Anyone happen to know what's going on?
 

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Administrator 2009 SLK 55 AMG/Founding Member 2006
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Car starts I assume?
 

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Premium Member 2007 SLK350
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Key turned to 'accessories' (all dash lights on) prior to crank position, and there is a noticeable whirring and clicking sound, apparently from behind instrument cluster. Anyone happen to know what's going on?
Have you tried turning the interior fan to off and see if you still get the sound?
 

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Registered 2005 SLK55 AMG
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Discussion Starter #4
^ - ^^

Yes and yes. I've noticed it plenty of times, but now curiosity has got the better of me.
 

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Administrator 2009 SLK 55 AMG/Founding Member 2006
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can u upload a video?
 

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Registered 2005 SLK55 AMG
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1,697 Posts
Discussion Starter #6
^

I think that will be above my pay-grade :frown:

I was just wondering if other '55 owners would sit quiet and listen (radio off) next time they switch on.
 

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Administrator 2009 SLK 55 AMG/Founding Member 2006
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96,407 Posts
^

I think that will be above my pay-grade :frown:
you can use your phone to take a video
then i can give you my email and i can upload it 4 u

let me know
 

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Administrator 2009 SLK 55 AMG/Founding Member 2006
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96,407 Posts
^

I think that will be above my pay-grade :frown:

I was just wondering if other '55 owners would sit quiet and listen (radio off) next time they switch on.
mine is quiet...i buckle my seat belt otherwise i get the reminder. that is all
without starting, i just get the systems coming on but no noise as you describe
 

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Administrator 2009 SLK 55 AMG/Founding Member 2006
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96,407 Posts

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Administrator 2009 SLK 55 AMG/Founding Member 2006
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96,407 Posts
My 55 is a fl if that matters
 

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Registered 2012 SLK55 AMG w/P30
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3,471 Posts
I have keyless go, when I push the button the car starts. However, if my foot is not on the brake – and I push the button – I hear a mechanical whirring noise as well. I believe it is the air conditioning vents moving into position.
 

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Administrator 2009 SLK 55 AMG/Founding Member 2006
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96,407 Posts
He has a r171 from 2005 Mensra :D
 

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Super Moderator UK SLK 55 AMG 2007
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27,257 Posts
^ Hmmm....curious....

I know you know mercs.


Have you tried this once the roof is down?


I'm just wondering if the noise sounds like it comes from there, but is travelling from elsewhere.


Just been out in mine, but I'll go see what I get.


I thought fuel pump, but I know you'd spot that.
 

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Super Moderator UK SLK 55 AMG 2007
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27,257 Posts
Owe you more than one for helping newbs with tech issues.


Soo...Ok.
Same country, year and model.


Same result, methinks.


I get just two clicks. You?


Details of what I did.
Stereo off.
Fan at lowest setting and off'd asap on turning key.
AC off.


Two distinct clicks.


Tried with roof down.
Same place.


I park in the road and it's night, so not playing with it.


I'd describe the click a little duller than the Hazards.
Low in the dash, maybe underneath.
Location between speedo and centre consul.


Whirring sound is low and I assume either ac charging or a fan.
Doesn't sound like a belt whirring to me.


That any help @Terminal
 

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Registered 2005 SLK55 AMG
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1,697 Posts
Discussion Starter #17
^ Yes I tried making a vid, but it won't allow me to attach to email over 20mb...

In any case, the sound is nearly inaudible, but I think yours is the same. A relay clicking - tick-tock, (only doing it once today, not repeatedly), followed by a very faint whirring, like a laptop cooling fan, emanating from behind the dials....

A/C off and fan to minimum. I tried switching the fan on, and the sound is different and obviously includes airflow from the vents.

I think it's reasonable to hear a relay click before cranking engages, but the little cooling fan noise seems pointless.
 

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Long Time Member 2005 SLK350
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3,707 Posts
do the inlet manifold flaps cycle before crank on the 55 ? clicking sound.

not to sure

p.s Myk i am back thanks buddy
 

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Super Moderator CA 2012 SLK55 AMG w/P30
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My 2014 SLK55 AMG also makes a little humming noise I can hear if I don't crank it and have the music off. I get no clicking sounds but I do hear a little whirring kind of hum and it doesn't stop until I exit the car (open the door) and everything turns off. (or if I crank it of course)
I have wondered what that is too. Next time I am at a MB dealer I'll try to remember to ask.
 
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