jugglia
New Member
Hi all, new to the forum and to the world of Mercedes Benz and engines in general. I've just bought a 310d motorhome which needs a lot of work, but thought the engine sounded lovely. I've spoken to a chap who seems to know about these things and he thinks I'm not getting the fuel economy that I should (currently about 15mpg I reckon), top speed (absolute max is around 55mph downhill with a following wind), or general power (slows to less than 20mph at the slightest gradient). I've changed the fuel filters, and it seems to pull away a bit better, but top speed is still slow. It's an automatic, and the thing that has struck me is that it appears to have four gears, and gets into fourth at around 25mph, which means it has one gear from 25mph up. Is that normal? Does anyone have any suggestions where I should start with this? Please bear in mind I know nothing about engines, but I'm keen to learn. Thanks in advance!