A kind friend did a computer translation of the technical document - thanks AltaVista Babblefish
The double sensor (or transducer) place on the head of the motor, regulated the corrected percentage aria/benzina based on the temperature of the motor. The sensor finding the temperature of the cooling liquid transmits to the system of injection KE and the apparatus of electronic commando of ignition the necessary data for the corrected fuel feeding. The usury of this particular one above all provokes to a regimen of minimum much irregular one around to the 70 - 80° since the wrong measurement of the data induces the motor to ingolfarsi heavy. In case regimens of irregular minimum avvertissero problems of this kind (, unexpected strattonamenti in phase of march) are advised the substitution of this particular one (see image, arrow). The code of the reciprocation is: 006.542.7717 (attention: the indicated code refers to motor 201,034 of series 2,3-16) the operation is simple and goes made cold motor; the reciprocation costs approximately Euro
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After reading this and your previous posts I suggest you take the car to an independent M-B shop for repair. This repair is best done by a professional shop.