huesey1974

Hi,
I just drove from Glasgow to Liverpool to pick up a 2009 cl500, car is stunning and test drive etc was perfect, however after around 50 miles and in traffic i noticed a whining sound that went with revs, i stopped later for a break and when i started it again it was all good, however when i got home it was whining again, it does it in or out of gear moving or not, i will be calling the garage tomorrow but any ideas would be greatly appreciated.
Thanks

Paulmurphy

Prob something driven by the serpent belt, would have to remove belt and spin up all that's connected to it, so many ancillarys alt/water pump/ tensioners etc .

Paulmurphy

Hi Huesey did you get to the bottom of your new purchase problem ?

huesey1974

Hi,
Sorry, Its getting diagnosed at an Indy tomorrow morning, ill post the results.
cheers

shadenfroh

You can try turning off the AC to rule out the compressor pulley/clutch.

Why am I suggesting this? Because my AC whines :-)

huesey1974

Hi,
Just to update, The dealer said the damper is the problem but want to replace the whole pump at £1800, Not going to happen so will replace the damper at an Indy.

Paulmurphy

Assuming you mean the ABC pump dampner real easy job, did mine not to long ago changed the oil and filter too.
purchased the dampner from the states £50
Dont you have any warranty as you've just purchased car ?

huesey1974

Hi,
The place I bought it from asked if I could get it fixed at an Indy and would just pay the bill for me which I am more than happy to do, The dealer also said I needed 2 front suspension parts at a cost of £900, I then proceeded to tell them the car was serviced and MOT'd with no advisories at a Merc dealer 6 weeks ago, more silence followed. Only reason I got it diagnosed there was its next to my work and the indy is 50 miles away. Wont be back ever!
thanks

huesey1974

Yes, The ABC pulsation damper.

huesey1974

Hi,
Pulsation damper fitted in just under 1 hour, Whining gone.
Cheers

SunnyC257

I missed all this. The same thing happened to me last year on a CL63 AMG. It was the same thing.

Gordon Cooke

Hi, about to do mine. Do you have a DIY thread to help me along? I hear its quite an easy job but I always appreciate some instruction in advance from those who have gone before me. Thanks.

Gordon Cooke

Did you fix it yourself? I hear its quite an easy job but I always appreciate some instruction in advance from those who have gone before me. Thanks.