Heads up: There are 10 versions of the 850 ECC and they are not all interchangeable.

VIDA does not tell who the OEM supplier is. If you go to MVS sponsor FCP Euro. They have a genuine Volvo TPS , Look at the picture it is a Bosch 0 280 122 001. The Volvo part number is 13363858 . https://www.fcpeuro.com/public/assets/products/183858/large/open-uri20150204-770-y2l6py.?1496452308

MALL240 wrote: ↑13 Mar 2020, 13:14 Rick the webpage said Only fits in 3.1 engines...

Not 3.1 engines, Bosch Jetronic LH 3.1 fuel Injection. One of the ECUs you where checking.

There is one for sale on eBay.

1998 Volvo V70 T5 Manual - $4000 Lone Tree, CO

some kind of special 5-point configuration. Torx Plus IPR bits. Bosch uses them on all their MAFs. Apple uses them to discourage self service of iPhones. You can find them on Ebay or Amazon. Use nothing other then MAF cleaner and don't touch the active sensor elements with anything other then the M...

vtl wrote: ↑17 Mar 2020, 21:18 What would you do with a cracked cylinder sleeve?

Most of us would cross that bridge when we come to it, not before.

valvolvo70 wrote: ↑18 Mar 2020, 15:45 it has 100K on it.

The S40 had 110K at the time.

Restore ... Vinyl Plastic & Carpet Dyes.
Leather seats you can get dyes for that also.

humanatek wrote: ↑19 Mar 2020, 14:50 Does this officically render my beloved R motor unrebuildable and dead forever?

It is inconclusive. It could be a blown head gasket. It may just need a head gasket and some work on the head.