For Sale: Mercedes AMG - Well Maintained I'm selling my Mercedes AMG, which has been cared for and regularly serviced. The car is in good condition, however there is a leak in the rear right hand foot well which we believe is from the air inlet behind the rear bumper as this is a common fault with this vehicle. This has been reflected in the price. The only reason for selling is that we've purchased a larger car to accommodate our growing needs, and we didn't trade this one in. The car is due for mot.