Ordered an engine based on the fact that it would be next day delivery and low mileage, this was vital as I am self employed. The engine took two weeks to get here. Once here the garage that was fitting it found it to be the wrong engine. They then said they were going to send a replacement engine which took a further week. This engine was correct and fitted by a Mercedes van centre. After a short period of time the engine started sounding very rough and had developed a sizable oil leak. Due to this I was told that my warranty was void and a refund could not be given. The whole experience has cost me a great deal of money.