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Warning light display says coolant level low, do not start

Customer Question
engine or stop engine. I...
warning light display says coolant level low, do not start engine or stop engine. I cannot get the cap off of the coolant expansion tank, why? Also can I add any coolant(antifreeze?). Please advise car is a xc70 2009 wagon, CS
Submitted: 2 years ago.Category: Volvo
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Answered in 1 hour by:
10/15/2015
Volvo Mechanic: Matt, Engineer replied 2 years ago
Matt
Matt, Engineer
Category: Volvo
Satisfied Customers: 22,242
Experience: Mechanical Engineer with 20 years experience in the auto industry, 8 yrs in formula 1 engine testing
Verified

Hello

the expansion tank cap should just unscrew- it'll be tight but it will undo - try pushing down slightly as you turn

I would use Volvo brand coolant. I've seen blue, red, green etc. But Volvo Coolant is a blueish color. (which is what I would recommend) Don't use Dex-cool use ethlyene glycol based coolant and you'll be fine.

There is a coolant level sensor in the bottom of the coolant reservoir. These sensors fail frequently and even though the level is fine, the sensor doesn't function properly cutting the indicator light on so it may only be that

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Volvo Mechanic: Matt, Engineer replied 2 years ago

Hi

do you still need help?

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Matt
Matt, Engineer
Category: Volvo
Satisfied Customers: 22,242
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Experience: Mechanical Engineer with 20 years experience in the auto industry, 8 yrs in formula 1 engine testing

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