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K6JRF Auto Page

1 Мар 2015 | Author: | No comments yet »
Mercedes-Benz E 55 T AMG S210

Analyze and Troubleshoot Check MIL and Electronic Control Units

Modification of the Viscous Fan Clutch for Engine

Description of Problem

The automobile is a work of art but some of the are not as ‘usable’ as they could be! for instance the viscous fan clutch in most cars. It is supposed to the engine by drawing outside air and through the radiator. Simple

But the kicker is that the VFC doesn’t until the temperature is into the RED on the temperature gauge! Much too So this modification changes the to lock up at all times. It’s simple to do and adds greatly to the of the engine.

So much so, with the temperature of 85 degress, it maintains than 90C with A/C on full and in stop/go traffic when with my Cool Harness.

Although this specifics here are for my M119 engine, modification will work on ANY with a VFC. Most MBs one!

The drawback is increased from the fan. It’s not perceptible at idle (650prm) but at — 2000rpm the air noise is when outside the car. But the safety margin for engine is well worth the minor

The picture shows a stock VFC by Sachs with the protective cover over the key element, the strip (bms). Click in the link to find a VFC for your model car. Remember to ENGLISH in the bottom toolbar. The sections show how the bms and VFC operate.

BMS of Operation

Mercedes-Benz E 55 T AMG S210

When two metals dissimilar thermal expansion are bonded together, they useful devices for detecting changes. A typical pair of and steel with expansion of 19 and 13 ppm per degree C respectively are commonly As heat is applied, the bms bends from the metal with the expansion. In this case,

So as the radiator/engine temperature increases, the bms releasing pressure on the pin (clutch) the internal fluid to engage the fans to change from to a lockup position and turn at the rpm. Now much more air is drawn though the radiator, the coolant temperature and thus, the

Sachs VFC Part Numbers

The shows the current VFC model for all Mercedes cars. The W140 and use the 2100 013 031 part. But it appears it can be replaced with the 2100 027 131

Current Sachs VFC Part


Sachs: 2100013031

Mercedes-Benz E 55 T AMG S210

interesting

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