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This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 09-04-2014, 08:17 AM   #1
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Join Date: Aug 2014
Location: merseyside
Posts: 139
My Ride: 320d touring
E46 320d Squeeking , deflating unpressurising sound ?

Hi all , just wondering if anyone else has had this problem , I'm running a 2001 320d 136 bhp'er ( what's the engine code ) Basically when I switch of the engine there is a squeaking noise coming from I think the vacuum controller for the flaps on the fan surround . Looking at the engine it's on the right hand inner wing . I've stripped cleaned and replaced the pressure converter for the egr and turbo actuator no change . Now this only started after a heavy service and I'd had the bulkhead parts of and the right hand plastic cover on the suspension turret off to get the manifold off . I managed to run the car for a day after I'd put it back together with the electrical plug unplugged from the heater contraption ? it's got water pipes attached and is a silvery alloy colour ( someone enlighten me ) that is in the area above the turret . As I say after a day of running the car I noticed the sound not so much a squeak more like a balloon deflating with the neck stretched if you know what I mean . The car runs well no flat spots since servicing the vacuum converter and I recommend doing that to everyone running a diesel but is a bit heavy on fuel but I don't dawdle even so with a hot engine if I am very gentle 1st and 2nd being tickled will pull the mpg gauge very low but at the other end of the box it'll do 50 mpg at 80 mph , is this normal ?

Last edited by beemernee; 09-04-2014 at 08:24 AM. Reason: missed a bit
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