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post #1 of 29 (permalink) Old 12-29-2016, 10:39 AM Thread Starter
 
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Coolant change interval

I thought the coolant change interval was listed in the owners manual packet,, but I sure can't find it now. Is that change interval shown somewhere? I have found that the coolant needed is Spec. 325.0 which is Mercedes part #BQ 1 03 0004, but darned if I can find the interval for my Smart. This coolant is a 15 year/150,000 mile coolant for many Mercedes models.

Len
2014 EV
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post #2 of 29 (permalink) Old 12-29-2016, 11:24 AM
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Since there's no internal combustion going on (less stress on the coolant), my guess, and that's all it is, is that 150K miles should be pretty safe. YMMV, of course.

PS - the 2015 owners manual says to refer to the maintenance booklet for coolant change interval info.
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post #3 of 29 (permalink) Old 12-29-2016, 12:52 PM
 
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10 yrs/124,000 mi? Source: '15 B-Class Maintenance Manual.

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post #4 of 29 (permalink) Old 12-29-2016, 02:00 PM
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Mercedes does refer to 15 years / 250,000km (whichever comes first) coolant:
Coolant / Antifreeze

In practice it will probably vary by country and engine type.
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post #5 of 29 (permalink) Old 12-29-2016, 02:34 PM
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Originally Posted by jwight View Post
In practice it will probably vary by country and engine type.
And in the case of the OP, there is no engine only an electric motor.
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post #6 of 29 (permalink) Old 12-29-2016, 03:43 PM
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Exactly.....
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post #7 of 29 (permalink) Old 12-29-2016, 05:14 PM
 
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The OP is probably referring to the battery pack coolant replacement for those who don't know...
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post #8 of 29 (permalink) Old 12-29-2016, 05:16 PM
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Exactly...
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post #9 of 29 (permalink) Old 12-30-2016, 03:47 AM
 
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Looks like it may be only if the coolant fails the "antifreeze content" test:

http://www.thesmart.ca/content/dam/s...ve_Service.pdf


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post #10 of 29 (permalink) Old 12-30-2016, 05:17 AM
 
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Originally Posted by lebikerboy View Post
The OP is probably referring to the battery pack coolant replacement for those who don't know...
The cooling loops for battery, motor and power electronics are interconnected and all share the same coolant. You can't just change the coolant for the battery.
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