Coolant problem

badboygoneclean

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Jun 21, 2022
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Your Mercedes
Mercedes vito 2014 w639
Hi people
I have a 2014 merc vito w639 and lately noticed a humming sound coming from left hand passenger side about 20 mins after my trips and also started to lose coolant approx 1 litre every 6 hours drive
From the research iv done it ls possible its the 12v auxillery pump but i cant find any info on its location
Any help is much appreciated
 


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