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48V Error Message on 2022 GLS450

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Old Jun 29, 2024 | 09:37 AM
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Crestone
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2022 GLS 450, 2017 GLE 350
Originally Posted by Crestone
Have about 28K on my 2022 GLS 450. I ran into a store for 10 minutes and came back and it would not start and got a yellow 48v warning message. They were gathering data to send to the Mercedes engineers. Latest info i got was they need to check the intergrated starter bolts in the bell housing. The next steps would be a battery change. A little worried that a lose bolt in the transmission bell housing is their answer to a 48v error.
After a week I was told the issue was a issue with the 48v cable to the AC compressor not being tight enough Should be torqued to 16nm and was only 9nm. Really? It was tight but not tight enougn? A couple foot pounds of tourqe is going to cause a problem.
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Old Jun 29, 2024 | 09:39 AM
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wildta
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GLE 580
Originally Posted by Crestone
After a week I was told the issue was a issue with the 48v cable to the AC compressor not being tight enough Should be torqued to 16nm and was only 9nm. Really? It was tight but not tight enougn? A couple foot pounds of tourqe is going to cause a problem.
Did you ask them what error codes were logged?
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Old Dec 4, 2024 | 06:49 PM
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Originally Posted by PJSD
MY car had the same issue. Has been at the dealer for 17 days now...
What was the resolution to this? Just happened to me 5 days after buying a 2023 CPO. It's been at the dealer for a week now unable to reproduce the issue, no codes stored (E450 but same malfunction)
Last edited by saracen31; Dec 4, 2024 at 06:54 PM.
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