I could not find the radiator drain plug of my 2000 E430, after removed the plastic cover under engine. Where is this radiator drain plug ? On the driver or passenger side ? Is there a picture of what the radiator drain plug look like ?
Thanks

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'00 E430 Brilliant Silver/Ash

Try looking at the lower right side of the radiator for the hose that connects to the coolant reservoir, then remove it.

I saw that small hose connects to radiator from reservoir, it can easily be removed, but I think releasing the radiator petcock would remove more old coolant from engine, and I am thinking using garden hose to force water into the engine through reservoir to flush out old coolant in the engine too.

Do anybody know where is the radiator petcock/plug is located ? what tool do I need to release that petcock ?

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'00 E430 Brilliant Silver/Ash

One one side of the bottom of the radiator there should be a plastic drain screw. There will also be a drain plug on the block.

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Ali Al-Chalabi

2001 CLK55
1999 Dodge Ram 2500 Cummins Diesel
2002 Harley-Davidson Fatboy
Merlin Extralight w/ Campy Record

I found that the 2000 E430 radiator drain plug is a red plastic plug from: http://www.importeccatalog.com

I don't remember to see this plug when I tried to locate it last weekend. I will try to locate this drain plug on my car radiator this weekend again to drain the old coolant.

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'00 E430 Brilliant Silver/Ash

The radiator drain is located on the bottom on the driver's side. You will need to remove both belly pans to access the drain. There will be a red plastic screw to turn to open the drain. There is a short nipple on the engine side of the radiator just above where the red screw is that you can attach a piece of hose to allow the coolant to drain into a pan without coolant going everywhere. The red screw doesn't have to come all the way out to allow it to drain., Hope this helps, Robert.

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Mercedes Benz Master Tech - Retired

Yes, this is extremely helpfull. Thanks a lot Robert.

I did remove the black plastic under-stray under the engine, but did not remove the two "belly pans", that why I did not find the red plastic screw. I will concentrate on the bottom of the driver-side of the radiator, hopefully I will find the "belly pans" and remove them to gain access to the red plastic screw.

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'00 E430 Brilliant Silver/Ash