GLS Class (X166) Produced from 2016 to 2019

Coolant leak after couple of weeks after replacing turbo

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Old May 2, 2026 | 01:56 PM
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ssbreddy's Avatar
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Coolant leak after couple of weeks after replacing turbo

Coolant leak after couple of weeks after replacing turbo. Towed to dealer where the turbo was replaced. On Monday the advisor will call back with findings. I am suspecting they will give a pushback that this is not related to turbo replacement. But it’s not a coincident that the coolant leak started to happend after the turbo replacement. They did not fix something correctly or some loose connection to give way for the coolant pipe burst or something g to loose the coolant immediately after the white smoke started to come from the engine bay near the driver side. See the video attached taken a minute apart. Do you guys think it’s all related to turbo replacement as all these coolant line would have been touched while replacing the turbo.

sorry can’t attach the video but screenshot.



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Old May 3, 2026 | 08:55 AM
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tekfoc's Avatar
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18 E63S
They should pick it up from your house.
It looks to be something they did wrong or didn't tighten properly.
Good luck .
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