, I was just thinking the other day, this has to be easier to do than VW transporter but after that comment 
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Hi garry, i was actually reading an article at Zooks place on saturday while doing my wheel bearings. BMW along with other car maker ties had planned a series of engines, the TD4, TD5 and TD6, each of these engines increased in capacity by 500ml with each additional cylinder. This was the start of the TD engine range and BMW had big plans for this engine, it easily met pollution standards without the need for extra filtering throught the exhaust, even though it had this. The TD engine range was created with future refinements planned. Ford however stuffed this up when they took over, Ford, not wanting to use engines from brands they dont own, soon put a stop to the TD range, the TD4 will go when the freelander is upgraded (presumably), the TD5 has been replaced with the TDV6, which is a Jag Diesel engine, and the TD6 will remain in the Rangie till next year when it is replaced by a small capacity (4.0L, or maybe less) V8 Diesel engine, i think from ford. This article went on to say that it was very disapointing to see such a remarkable engine get scrapped. Ok, thats my history lesson for the day. MattOriginally posted by garrycol
Hi Ace, The freelander diesel is not a cut down TDi - 200/300 series. As you would be aware the term Tdi is the generic name given to the Series 1 Disco Diesels (the sticker on the back door), TD5 for the Series 2 etc - The first Freelander diesel (L series) Designator was Di - I assume meaning diesel injected - the later Freelander BMW diesel lost the Di designator and became the TD4 in line with the TD5 designator for the series 2 disco and the TD6 designator for the RR. I think the diesel version of the Series 3 Disco is called the TDV6 rather than the TD6 designator of the RR.
I believe the Tdi 200/300 series Diesels are Overhead Valve engines with a timing belt rather direct drive or timing chain driving a camshaft which operate the push rods. The Freelander engine is electronic, single overhead cam but unusually driving a 4 valve head from the one camshaft - the TD4 is more advanced with timing chains rather than belts and has twin cams driving a 4 valve head - this engine is a bit unusual in that the cam shaft chain only drives one of the cams from the crankshaft and there is a second chain driving the second camshaft from the first.
So in summary - Freelander Diesels are Di or TD4 - Disco Tdi, Td5 or TDV6
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