E-Class (W211) 2003-2009

E 320 cdi coolant change

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Old Jul 8, 2008 | 03:58 PM
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2005 E-320cdi
E 320 cdi coolant change

Does any one know if the radiator has a drain? If not how do you drain coolant and replace it?

Thanks Mike
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Old Jul 8, 2008 | 06:21 PM
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Coolant in your car is good for 15 years.
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Old Jul 8, 2008 | 10:07 PM
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Kent - That sounds suspiciously like the "sealed for life" 722.9 trans.

That said, it seems too soon for the OP to worry about that service in this day and age of superior coolants and well sealed systems. Maybe at the 5 or 7 year point.....I'd revise that assesment if the OP lives in Death Valley, or in Fairbanks.
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Old Jul 9, 2008 | 03:24 AM
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Originally Posted by TMAllison
Kent - That sounds suspiciously like the "sealed for life" 722.9 trans.

That said, it seems too soon for the OP to worry about that service in this day and age of superior coolants and well sealed systems. Maybe at the 5 or 7 year point.....I'd revise that assesment if the OP lives in Death Valley, or in Fairbanks.
I acknowledge the mistake for sealed for life transmissions but the two are really different. I probably missed the Death Valley point, coolant with proper add-ons is equally important at Death Valley as in the cold North. But the coolant system really is "sealed", as long as there are no faults. There are add-ons that protect against rust etc. If you open the coolant cap, you allow oxygen enter the tank, not a lot but a bit at a time. You need oxygen to get rust. The coolant protection level can be checked too.

If may sound bad but following the service instructions here is better for the car than following some "old school" rules.
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