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Coolant visit workshop message coming on. Filling coolant…

coolant visit workshop message...

coolant visit workshop message coming on. Filling coolant reservoir-it took less than 12 ounces-a few times solved it temporarily, but no more. 2005 clk320 convertible 145000 miles

Mechanic's Assistant: How many miles on the car? How has your mileage been lately?

145,000 miles. Mileage seems to be OK

Mechanic's Assistant: Are you fixing your Convertible yourself? What have you tried so far?

All I have done is add the coolant. An idependent mechanic found nothing

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

The temperature gauge has been reading a little bit lower since this problem started. I am in a cold weather area

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Answered in 4 minutes by:
2/24/2017
Chad Farhat
Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems
Category: Mercedes
Satisfied Customers: 5,350
Experience: Owner at Carolina Auto Service & Sales , 20 years experience in Foreign & Domestic vehicles
Verified

Hi, I'm Chad. Welcome to JustAnswer. I'm reviewing your question and I will be posting your reply ASAP.

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Hey how are you

The first step is to have the coolant system tested using a coolant pressure tester , where they pressurizer the system with a pump to duplicate as if you driving and they look for coolant leaks on the engine , radiator hose , radiator , thermostat housing gasket, ect sensor , etc..

these are common about the thermostat housing leaking but testing will be needed .

the car temp gauge might act funny since now we have air in system , so after pressure test & repair leak , they should refill & Bleed the system then your gauge should go back to normal

Please let me know if you need anything else on it, just reply back and we will continue

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Thank You
Chad Farhat
ASE Certified Technician

Chad Farhat
Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems
Category: Mercedes
Satisfied Customers: 5,350
Experience: Owner at Carolina Auto Service & Sales , 20 years experience in Foreign & Domestic vehicles
Verified
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Chad Farhat
Chad Farhat
Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems
Category: Mercedes
Satisfied Customers: 5,350
5,350 Satisfied Customers
Experience: Owner at Carolina Auto Service & Sales , 20 years experience in Foreign & Domestic vehicles

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