C-Class (W203) 2001-2007, C160, C180, C200, C220, C230, C240, C270, C280, C300, C320, C230K, C350, Coupe

Could you add transmission fluid from top engine bay?

Old Sep 8, 2014 | 03:28 PM
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Could you add transmission fluid from top engine bay?

(I think I posted in the wrong forum earlier)

Hi guys, I'm posting on the Merc forum for a friend of mine that asked for my help and got me so confused that I'm desperate for answers. It's a 2002 C320.

The problem they're having is a, supposedly, transmission leak. It's leaking from a rubber hose that connects to the radiator. Top left/ passenger side. He also claimed that he added transmission fluid from the top of the engine bay.

I have an e46 bmw and work on my car all the time. I've done transmission flush on my manual transmission and it is quite similar to the way described here on the forum. Both fill and drain bolts are located underneath.

Could you guys add transmission fluid from top of engine bay!?
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Old Sep 8, 2014 | 04:35 PM
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Yes, through the dipstick tube.
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Old Sep 8, 2014 | 09:59 PM
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Originally Posted by VVF
Yes, through the dipstick tube.
One should add that the tube is sealed with a plastic pin. You must break the pin to remove the cover. You need an inexpensive pin to replace the broken one, and a service dipstick to measure the fluid level.

These cars do not fare well when over filled.
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