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Hi all,

My GLA180 (2019) has started making a rather noticeable whining noise when I accelerate within the 30-50mph region (the only way I can describe the noise is like the noise you hear when a plane starts setting off??) - on any drive mode and in any gear. Has anybody else every experienced this problem and does anybody know what might be the cause of this? Thought it might be something wrong with the transmission or gear box?
 

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two weeks ago my GLA45 started to have the whining sound too ( weeeee sound) at 2000rpm and above with slight load on the accelerator.

No idea what is wrong. everything seems fine, just the noise is annoying.
 

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Turbo wear & tear over time. Given in general a turbocharger's 60K-300K rpm it's a wonder they can survive as long as they do, even tho' continuously oil lubricated/cooled. The slightest bearing or vane degradation therefore can have a major negative impact.
two weeks ago my GLA45 started to have the whining sound too ( weeeee sound) at 2000rpm and above with slight load on the accelerator.

No idea what is wrong. everything seems fine, just the noise is annoying.
 

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two weeks ago my GLA45 started to have the whining sound too ( weeeee sound) at 2000rpm and above with slight load on the accelerator.

No idea what is wrong. everything seems fine, just the noise is annoying.
Hi there…. I’ve got a 2021 GLA200D with the 8 speed auto box and an irritating whine between 32-36 mph. Mercedes tell me it’s a characteristic of the gearbox… crazy diagnosis. The car’s had this noise from new and only has 6K miles on the clock. I’m struggling to live with this noise so I contacted the Motoring Ombudsman in the UK.
I’ve engaged a world renown engineering specialist called DEKRA, their engineer inspected the car and said it wasn’t actually the gearbox but the final drive differential that unfortunately is built into the gearbox casing.
Basically it’s the gear meshing in the crown wheel and pinion… the noise is caused by harmonics and according to my qualified independent engineer is most definitely a fault.
I am waiting for the Ombudsman to handle my complaint…. sadly Mercedes have dismissed my complaint and fobbed me off.
Good luck
 
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