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Discussion Starter · #1 ·
Hi all, I tried to do some searching on the forum and found some posts relating to my issue from the 176 forum but nothing in 177 a45s.

I was driving like I would normally, very calmly in comfort mode with exhaust on letting the car warm up. I took a left turn on a hairpin and suddenly I get 4 warnings pop up on the dash about lane assist/brake assist, the esp off light comes on and check engine light. I click through the alerts and with no where to pull over keep driving and then power loss. I pull over as soon as I can. Jump out and check under the hood / car for leaks or damage but nothing.

I pressed the Mercedes me service button but they were no help. I turned the car on and idle was lower than normal so shut off again. I was in the bottom of a valley and needed to drive out so started the car again and this time no warning lights. The car seems like it’s down %50 on power, race mode feels like comfort and the whole thing is muted.

I’m taking it in to the dealer tomorrow but has anyone seen or heard of anything like this before ?
 

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There’s a thread about GLA45s power loss. https://forums.whirlpool.net.au/thread/9jwwqn03
I do also remember some people mentioned power loss on CLA45s thread but cannot find it. Those car should have very similar power train and I guess it might be gear box issue? definitely worth keeping an eye on it.
Mine is on the ship and hope it doesn’t have this issue.
 

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Discussion Starter · #3 ·
Car only has 2400kms on it and new since Feb 17th. Its been flawless since that event today. Will let you guys know what they say. Its almost like the gearbox lost its programming and its in slippery mode the whole time.
 

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I've not experienced anything like this on the A45s, only on my first A45. Which I am sure was down to a door replacement and the car relearning, as I had warnings come on for other things which went if I switch off for a couple of minutes and then on again.

Keep us posted on what MB say but I am sure it will be a reset or something similar. The guy in the GLA post went to MB Brisbane, please do let us know where you go. Can I also ask are you the only driver of the car. Just thinking of the learning side of the car getting confused between drivers.
 

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Car only has 2400kms on it and new since Feb 17th. Its been flawless since that event today. Will let you guys know what they say. Its almost like the gearbox lost its programming and its in slippery mode the whole time.
Hi,

I have has a similar experience on my new 2021 A45S which currently has 600 miles on the clock. Twice if has flashed up transmission error and lost all power briefly like it was in neutral. Seemed to perform a quick transmission reboot and then we were off again. I have asked Mercedes if they can find anything via Remote Diagnostics.
 

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Discussion Starter · #7 ·
So I was at the dealer for 4 hours today and really nothing much to report.


I had the following list of issues
  • power loss issue
  • Creaking seats
  • Creaking steering wheel (if pressure applied to left side
  • Chronic brake noise
  • Replace glove box cover ( marked from new delivery)
They said there is a software update that my car needs and they needed more time to fix the rest of the issues. It’s booked in for them to have it 2 days in 2 weeks from now.
I feel like they did something and responsiveness is back and the brakes felt different.

I will get a loan car on the next visit.
 

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So I was at the dealer for 4 hours today and really nothing much to report.


I had the following list of issues
  • power loss issue
  • Creaking seats
  • Creaking steering wheel (if pressure applied to left side
  • Chronic brake noise
  • Replace glove box cover ( marked from new delivery)
They said there is a software update that my car needs and they needed more time to fix the rest of the issues. It’s booked in for them to have it 2 days in 2 weeks from now.
I feel like they did something and responsiveness is back and the brakes felt different.

I will get a loan car on the next visit.

Thanks for sharing this. Please let us know if you have any further updates. :)
 
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