| Poor fuel economy - E30 325i
Hi all! I wonder if anyone could help me out a little, I'm new to the forum and also to the E30. I bought an 89 325i Touring last week, it's a great car but the one problem seems to be the fuel economy. I filled the tank to halfway and only got about 75 miles from it! Even our 4.2 Jag does better than that. I haven't yet investigated, but I wondered if there were any common faults or things to check on this engine? It idles smoothly but I think it is idling too fast, but only a little. The exhaust does smell a little of petrol, perhaps it is running too rich. When you set off from a standstill and put your foot on the gas, it sort of hesitates for a second before the power kicks in - I think this is the engine rather than the auto box. Oh, and the temperature gauge doesn't work at all, I read online that if the thermostat is faulty then the engine management might be thinking that the engine is cold all the time and overfuelling? I know this is a bit of a vague question, but I'm still relatively new to mechanics so I'd like to learn how to do this kind of diagnosis and any help gratefully received! | 
