I also bought a 320ise. Searched hi and low for decent example eventually dropped on a 2.5 engine for a few quid after owning for a year otherwise its been exellent.Economy is a little better but nothing to shout about 24.7 (2.0 around town) 26.9 (2.5 around town) according to the obc
driving normal.

i've currently got a similar problem with 325i. My younger brother had your problem with his 735i turned out to be the temp sensors located on the thermostat housing .Going to replace mine there about Ԛ£12 each thats from Sytners main dealer

I've got to agree with the others about having a rear ARB my 320 hasn't got one either but my old mans touring has and thats a 320 also..mines worser still that i've fitted a 2.5

Does anybody know the difference between the 318is lsd diff and the 325is apart from the obvious ratios ie is input/ output shafts a different size?
just installed 2.5 in my 320i goes off line quick enough but the left hand tire won't last too long

Just joined and all looks great to me

John O
1991 e30 320ise