Whistling sound engine compartment
Thread Starter
Out Of Control!!
Joined: Jul 2003
Posts: 15,901
Likes: 4,632
From: North Scottsdale, AZ
'71 Pinto
Whistling sound engine compartment
DTB S-B-01.20/24 FEB09 ML63, C63, CLK63, E63, CL63, CLS63, S63, SL63, and R63 up to engine # 156698x 60 022000 - whistling sound from the engine compartment (in the area of the firewall) the cause may be a malfunctioning diaphragm in the pressure-regulating valve. The sound can also be heard for up to several seconds after the engine is switched off. The sound goes away when the engine dipstick is removed. To resolve, the valve is replaced.
Newbie
Joined: May 2011
Posts: 1
Likes: 0
2007 ML63 AMG
2007 ML 63 AMG
thanks for the info, my ML63 is making the same whistling sound.
I guess i should have the mechanics at my mercedes dealership check out this forum, so far they've replace a breather pipe & a v belt....they may come back and tell me another story tomorrow. I will see what they say next!
I guess i should have the mechanics at my mercedes dealership check out this forum, so far they've replace a breather pipe & a v belt....they may come back and tell me another story tomorrow. I will see what they say next!
Member
Joined: Oct 2010
Posts: 83
Likes: 0
From: Orange County CA
ML63
I new it
I new it!
Im not going crazy
I hear it every morning afternoon and evening when i start the truck.
I have heard it since day 1 of buying the truck.
Is it an intricate job? ive already had the prv replaced. Towed from Monrovia in 100 degree heat. What a blast that was.
Should i bring the truck in ......na ill compile a few things and then bring it in. Like the rubber grommets on the running boars on the drivers side are all chewed up. like if i was wearing baseball cleats to jump in the car or something.
oops!
thanks for the heads up!
Im not going crazy
I hear it every morning afternoon and evening when i start the truck.
I have heard it since day 1 of buying the truck.
Is it an intricate job? ive already had the prv replaced. Towed from Monrovia in 100 degree heat. What a blast that was.
Should i bring the truck in ......na ill compile a few things and then bring it in. Like the rubber grommets on the running boars on the drivers side are all chewed up. like if i was wearing baseball cleats to jump in the car or something.
oops!thanks for the heads up!
Member
Joined: Mar 2013
Posts: 152
Likes: 0
2008 ML63 AMG
i had it along with a CEL. they said the code was for leaking intake manifold. The prv valve (not really a valve but for a lack of a better term...) the job is a pain in the a$$ with intake manifold on so they replaced it while they were repairing the manifold leak. The whistling sound is now gone.
other than a tiny oil leak, i doubt there is any performance issues associated with it.
other than a tiny oil leak, i doubt there is any performance issues associated with it.
Last edited by Rippin'AV; Jan 2, 2014 at 11:12 PM.
MBWorld Fanatic!
Joined: Jun 2012
Posts: 1,744
Likes: 8
From: Sydney, Australia
2010 C63 Estate
I hear that after i close and lock the car, but i think its more to do with the AirMatic personally. As it coincides with the car lowering. A very brief whistle release of air.
I has the same valve on my old 740iL BMW (M62- 4.4L). When this valve tore (its kinda a bladder), man the car was WAY down on power, and it would BELLOW smoke.
I feel that the whistle in mine, is definitely associated with the AirMatic settling.
I has the same valve on my old 740iL BMW (M62- 4.4L). When this valve tore (its kinda a bladder), man the car was WAY down on power, and it would BELLOW smoke.
I feel that the whistle in mine, is definitely associated with the AirMatic settling.
Super Member
Joined: Apr 2002
Posts: 981
Likes: 9
From: Switzerland
Mercedes Evo II
I hear that after i close and lock the car, but i think its more to do with the AirMatic personally. As it coincides with the car lowering. A very brief whistle release of air.
I has the same valve on my old 740iL BMW (M62- 4.4L). When this valve tore (its kinda a bladder), man the car was WAY down on power, and it would BELLOW smoke.
I feel that the whistle in mine, is definitely associated with the AirMatic settling.
I has the same valve on my old 740iL BMW (M62- 4.4L). When this valve tore (its kinda a bladder), man the car was WAY down on power, and it would BELLOW smoke.
I feel that the whistle in mine, is definitely associated with the AirMatic settling.
Thats why my ml63 nickname is Bumblebee
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Newbie
Joined: Jul 2017
Posts: 4
Likes: 0
W204 63AMG
whistle to resentí in the engine
Good Morning,
Hello everyone, my name is Santiago, I have the problem of the whistle to resentí in the engine, by the zone of the intake manifold.
The engine is a 156, which valve is the one that needs to be changed? Is possible photo or reference?
Thank you very much
Hello everyone, my name is Santiago, I have the problem of the whistle to resentí in the engine, by the zone of the intake manifold.
The engine is a 156, which valve is the one that needs to be changed? Is possible photo or reference?
Thank you very much
Junior Member
Joined: May 2017
Posts: 43
Likes: 4
2007 ML63
Pcv valve, sits on the back of the motor. Not an overly expensive part but a pain in the *** to replace. Made out of plastic they seem to crack over time and are quite common on the m156 and make that distinctive whistle.
Newbie
Joined: Jul 2017
Posts: 4
Likes: 0
W204 63AMG
This is the whistle
https://*******/photos/UuLPRREsmobsYBYe9
https://*******/photos/UuLPRREsmobsYBYe9
Last edited by Festino; Jul 9, 2017 at 09:51 AM.
Super Member
Joined: Dec 2009
Posts: 748
Likes: 93
From: Dhahran, KSA
2020 E 300 Coupe and 2019 GLS 400
This could help:
https://mbworld.org/forums/ml55-amg-...k-popping.html
https://mbworld.org/forums/ml55-amg-...k-popping.html
