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International Automotive Technicians Network
Prev Professional Automotive Repair Technical Discussions for December 23, 2020
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2013 Mercedes-Benz GL450 4.6L Mechanical VIN: 4JGDF7CE9D
we had to flush the entire system twice install new thermostat and it seems working perfect , thanks for all the help
2015 Mercedes-Benz GLA250 4Matic 2.0L Heat VIN: WDCTG4GB5F
Thank you to everyone who replied. Sure enough, there is a vacuum valve on the water pump. From under the vehicle you can see the small arm from the valve. Just touched the arm with a screwdriver and it popped back into place and could hear coolant flow throu...
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