A-Premium Coolant Overflow Recovery Reservoir Tank [with Sensor] Compatible with Mercedes-Benz W164 Series GL320, GL350, GL450, GL550, ML320, ML350, ML450, ML500, ML550, ML63 AMG, SLS AMG - Front Side

Always read the sellers description and where it's coming from. Amazon indicated this would not fit my vehicle, the seller listed my vehicle as a direct fit replacement. It fit just fine. It wasn't the cheapest but at least it was in the US. Most of the part are made in China but I will not purchase anything coming directly from China! Don't send your money directly to China! Don't be a sellout support our US businesses!

Awesome item, well built and very quick to install. However the reservoir continued leaking because the O-ring in the radiator cap was shot. Bought a new cap and I don't have to worry about leaks again. Now I have an extra reservoir just in case.

The part fit perfectly but when I received it the bracket was broken off but I have repaired it to work. Thank you

Excellent Quality, recommended. Come with new fluid level sensor built in. Matched perfectly! Love it when a part comes and goes in and does exactly what it is supposed to do with a cost savings!!!

It is a good one really

Great material, fit as need to be.

After replacing the reservoir because the original had a cracked vent line the gl450 began overheating and boiling the coolant out. This prompted replacing the thermostat and then the water pump with still the same problem. After rigging up a pressure tester to the vent line instead of the cap I discovered thereservoir held zero pressure even using multiple caps. A new tank immediately solved this and the system builds 15psi. And I missed the return window by just days. Although what this cost me was much more than the price of a reservoir..

Worked well til it cracked 13 months after use.