Grumbly/vacuumy sound from front left
Thread Starter
Super Member
Joined: Dec 2007
Posts: 980
Likes: 224
2005 S500 Designo
Grumbly/vacuumy sound from front left
When giving it gas at low RPMs, the car makes an occasional rumble at me, like bbrrrrgggmmmpphgg; It sounds like some vacuum thing. It’s from the engine area.
Any ideas what this might be?
Any ideas what this might be?
Newbie
Joined: May 2007
Posts: 5
Likes: 0
I have 2005 CL65 and had a similar problem - growling noise front left at low rpm (approx 1100 rpm). Read all the MBZ articles I could find. After independent repair shop replaced a belt pulley, motor and transmission mounts, the sound (and light vibration) remained. Took to local MBZ dealer after ABC hose spit open. They identified that front left ABC actuator was failing and causing the noise. After replaced, sound is gone and car ride is much improved.
I feel your pain...it was a frustrating journey. Hope this helps.
I feel your pain...it was a frustrating journey. Hope this helps.
Thread Starter
Super Member
Joined: Dec 2007
Posts: 980
Likes: 224
2005 S500 Designo
I have 2005 CL65 and had a similar problem - growling noise front left at low rpm (approx 1100 rpm). Read all the MBZ articles I could find. After independent repair shop replaced a belt pulley, motor and transmission mounts, the sound (and light vibration) remained. Took to local MBZ dealer after ABC hose spit open. They identified that front left ABC actuator was failing and causing the noise. After replaced, sound is gone and car ride is much improved.
I feel your pain...it was a frustrating journey. Hope this helps.
I feel your pain...it was a frustrating journey. Hope this helps.
Really difficult to describe; Like a crocodile clearing its throat
