AlwynMike

Palmo,

No, my belts are quiet.

What you can try is:
Get a water sprayer - the type you use indoors to spray plants.
Start the engine and whilst it is running at tick-over, spray the belt with water. If the belt is making the noise (rather than pulleys etc.), this should instantly quieten it down for a little while - sometimes only seconds, sometimes for days. You can use a watering can or even flicking water from your hand to do this, but the sprayer is a little more subtle, and there is less likelihood of getting sprayed back in the face!

Ford Cortina/Sierra engines were awful for belt noise, and this was a common "cure". Otherwise, change the belt.

One has to assume that the belt is not running too tight - I don't know if your engine has an automatic tensioner or not - as this would make the belt noisy too. Perhaps when you take your car in for its oil change the Dealer could check that. Oh, silly me, how on earth could a BMW technician check if a belt is too tight, when all they do is plug in a computer. Sorry, the cynic is coming out again

Mike

HPLouis

I have the same noise and went to 2 different dealers and my independant mechanic. They all told me that it was normal. I'm not too worried about it for now since I have the extended maint and the CPO warranty but I do keep my ears open for it just in case the noise changes or it gets louder.

Henry

Palmo

Thanks again for the advice Mike - will try you suggestion. However, I think it is more likely to be one of the pulleys - the technician said "it's the way they are designed and the way the belt runs around them and nothing to be worried about"..... he may have a point?, but I intend to have this looked at again (and the clutch noise) on my next service (oil change) visit. I'm sure I saw a bulleting on here referring to the noisy pulley but can't find it now.

In the mean time, I will try to see if it is the belt itself.....

Palmo

Someone else with the same noise..... I'm not going mad after all!

I agree with you that I'm not too worried about it either, and your dealer's response seems consistent with mine.

Am going to mention this again at my next service.

AP Sales

I had the same issue and the CDV fixed it. Easy and cheap to do.

s4iscool

does the e60 have enough slack in the clutch line that the CDV can be removed without replacing it with a modified one? That would be an easy way for you to test the CDV without buying the zeck

HPLouis

It's a metal line so you could just remove the CDV and bend the line. I didn't do that because I wasn't too keen on bending metal lines and maybe having to bend them back if I ever wanted to put the CDV back in for a visit to the dealer or some warranty work. Now with the modded CDV, I don't have to worry about that.

s4iscool

thats what i was wondering, on my e90, the line can be connected wtihout having to stress the line anymore than usual. you just need to bleed the line like normal, but that took all of 1 minute.

kenjai

Would you guys recommend me bringing my car to the dealer to get the modded cdv installed or to a local mechanic?
How much would it cost approximately?

s4iscool

if you have a close relationship with your SA, then MAYBE, but with most mods, I would never have the dealer do it...unless it was a factory part.