re quoting this bit first :
-------------------------------------------------------------------------
Main article: OM611
The OM611 with the exact name (OM 611 DE 22 LA) was from 1998 to 2003 in the car, the C-, CLK-and E-Class used to and in addition it is Sprinter, Viano and Vito installed in the. The 2.2 liter turbo diesel engine has a displacement of 2151 cm ³, the stroke is 88.4 mm bore and 88 mm. From 2000, with a slightly modified engine capacity of 2148 cm ³, the stroke is 88.3 mm bore and 88 mm. It is equipped with four valves per cylinder and a BOSCH-rail injection system equipped Common. In addition, the engine has an exhaust gas turbocharger with variable turbine geometry, exhaust gas recirculation (EGR) and a channel switch to change the inlet swirl.
The car models, he was with two power levels (model number 200 CDI and 220 CDI) 75-105 kW (102 - 143 hp) available. The Vans DE22LA the OM611 engine with the performance of 60 kW (82 PS) 80 kW (109 hp) and 95 kW (129 hp) available.
Main article: OM646
The OM646 (DE 22 LA) is a modified OM611 2003-2008 and was in the car, the C-, CLK-and E-Class used to and in addition it is Sprinter, Viano and Vito installed in the. In the passenger car models, there are 90-110 with him kW (122-150 hp). From 2007, performance was again the 100 kW (136 hp) in the 200 CDI and 125 kW (170 hp) in CDI increased to 220. The Vans is the OM646 engine with the performance of 65 kW (88 PS) 80 kW (109 PS) 95 kW (129 hp) and 110 kW (150 hp) available. In some variants has the OM646 on a mass balance for Lancaster . This is known for models E 220 CDI and, from the facelift in model year 2006, E 200 CDI.
OM612/OM647 (five-cylinder) [edit]
------------------------------------------------------------------------
looking at the remap info on forum the difference in different model engines
is more than ecu difference (whether w638 or w639) looking mostly at 2.2 variants , can any one shed if variation is injectors /turbo or mechanical ?
marc
------------------------------------------------------------------------
OM611 OM612 OM613
OM646