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I have an EQA 250+ which is 2 weeks old & done less than 1000 miles!! I’m getting an intermittent error message to top up the coolant. I thought coolant was only needed in petrol or Diesel engines? Anyone else experienced this & if so, what is the solution? Thanks
 

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Hi, there is at current a recall (can't remember #) to replace the 'Elec Brain' coolant at next service. I believe it's not a panic job. I would speak to MB and get it done. My service(s) where part of the purchas deal. An 'A' service is about £200 at best it's an MOT type check. No Oil/Filter change, only Cabin Filter.
 

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I’m getting an intermittent error message to top up the coolant. I thought coolant was only needed in petrol or Diesel engines? Anyone else experienced this & if so, what is the solution? Thanks
EV's have extremely complex heat pump systems, harvesting heat from a list of components that generate heat, and redistributing it to places that need heat, like the cabin or battery. Controlling and defining the policies that govern this system is quite a challenge, there are so many scenarios and conditions to consider. Should you prioritize consumption or long term battery life? fast charging? flat charging curve? passenger comfort? The error message you got is quite commonly seen, and for brand new cars seems to be due to air in the system. There was a recall early this year due to coolant getting gel like, clogging the system, but I think that was just a batch of cars. There is a big recall in china, but cars in china are produced in the chinese plant, so likely the leakage issue does not affect european/american eq cars, the china leaks had faulty seals near the rear motor, leading to motor failure. This has not been reported in Europe as far as I know.
 
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