Hi - Now it's geting colder in the mornings my 2.2 DI is having problems starting. Even using another car to boost the battery which was a bit sluggish it simply wouldn't fire. Had to call out the AA who finally got it going with starter spray after telling me that two of the heater plugs were U.S. (he deduced that by checking battery draiin current with a clamp ammeter) so I changed all four glow plugs and the next day had the problem again! :headbang: The starter spins it ok & when it finally catches and fires, the engine immediately runs well & I have no problem starting it all day. Any ideas where to look next?