In europe there was a 2.0 4, a 2.5 5 and a 2.5 turbo.

In the US there was a 2.2 4, a 2.5 5 and a 2.5 turbo. The 2.2 was available from 84 to 85, the 2.5 5 was available from 86 to 89, and the 2.5 turbo was available in 87.

The early US 2.2's (first 1736 made) are very close to the euro 2.0. Afterh that the 2.2 had its own block which was different than the euro 2.2.

While the US 2.2 stopped in 1985, the Euro 2.0 was made through 1993.

In 1989 there was a redesign to the head (changed the angle of the injector among other things; it was called the diesel '89). I do not believe that it ever made it into the 190's (maybe it did in 89 but I do not think so).

IMHO, the 86 2.5 with 5-speed is the best one (less emissions material than an 87). Also, the 2.5 turbo is auto only in US.

Hope that this helps.

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Jovan

'84 (11/83) 190D 2.2 5-Speed; Silver/Blue; Motor No. 00354, 402k mi (340+kmi mine)

'89 Porsche 911 Turbo Coupe; Black/Black; 53kmi
'05 BMW 530i 6-Speed; 302kmi
'19 Range Rover; 30kmi