Hi Anh, greetings from the UK and a very warm welcome to the forum. According to Page 70 of the e-brochure for our country, the maximum recommended water depth (also referred to as fording or wading depth) is quoted as being 300mm. As to the height above ground of the air intake, my 220d Sport measures it as 800mm to its lowest point but my car is fitted with the optional Air Body Control which means the ride height is 50mm higher than GLCs fitted with the conventional suspension.
Here is our e-brochure but be aware that the options made available do vary between markets: Mercedes-Benz GLC 2017 PDF UK Brochure
Here is our e-brochure but be aware that the options made available do vary between markets: Mercedes-Benz GLC 2017 PDF UK Brochure
