Unless you were describing good old fashioned diesel indirect injection and forgot to mention the (charged air/fuel) mixture enters the main cylinder via the precombustion chamber
Edit - yes that description is over simplified merely in an effort to make @mikes48 feel a bit better
Thanks for that, and to @nvingo for putting me straight . I've still got the old-school petrol/carburettor mentality, where the air/fuel mixture is sucked in en masse by the descending pistons . So yes, there is a route for objects other than air to enter the cylinders .
Didn’t think Jaguar ever used the BMW engine? But their (BMW) 6 cylinder diesels are pretty reliable engines. My last one was on 162k when i sold it and my current one is 142k. All had original turbos / chains / etc.
I only say this as I know someone who has had both a jag and bmw with a 3 litre diesel and he was sure they were the same. When BMW bought land rover maybe ?
I don't think car companies need be related to buy major components from each other, for a long time Peugeot was the supplier to Ford of diesel engines.