Getting rather concerned with the din my new 1.7 CDTI makes when starting from cold. It makes a horrible clattering noise for around 30 seconds then peters out and sounds normal afterwards. I know diesels are noisy from cold, but I've had plenty of diesel engines in my lifetime and nothing has sounded like this, it's on a whole new level of noise .
I've checked the oil level and it's marginally above the max marker on the dipstick. It's made this noise from new and it's just coming up to 1000 miles.
I'm thinking it's oil pick-up related, ie. there is no oil lubrication happening for the first 30 seconds til it pulls some up to the top of the engine, hence the noise, but surely this can't be doing the engine any good?
Any ideas folks?