Welcome to the official blog of The202Chronicles YouTube channel, where the main focus is still the red C-Class. On this site I intend to give a transcript of repair and maintenance videos for those who need it. According to my plan, these descriptions will go more into details and will include more OE numbers - this latter point is planned for future videos as well.
OM605 and OM606 The last Bosch injection diesel engines from Mercedes-Benz… DOHC, prechamber combustion, efficiency, responsiveness, and the well-known kle-kle-kle-kle idle sound. Introduced in the 1990s, the OM605 and OM606 engine pair can be seen as updates to the earlier OM602 and OM603 engines. In keeping with the spirit of the era, they were equipped with several then-modern developments: an EGR valve, a throttle valve (to reduce engine braking), ECU-based engine management and—what will concern us here—EDC (Electronic Diesel Control). The EDC system also brought a new injection pump. In principle it is similar to the earlier units, however throttle input is no longer transmitted via a cable but by a sensor–servo motor pair, and engine shutoff is handled by the same servo motor and an electric shutoff valve instead of the earlier vacuum-operated solution. The old, fully mechanical injection pump - source: Peachparts.com The new EDC injection pump with the shutoff valve instal...
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