First of all has your technician ever seen the car when it wouldn't start?? If not then you will have to go on Guessing about the problem. I would always suggest replacing both pumps on a 14 year old car, even low mileage.
Has he inspected the ignition system, cap/rotor/coil/wires??The fuel relay gets RPM info from the ignition module(EZL).
MERCEDES Benz Master Guild Technician (6 TIMES)
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190E 2.3 16V ITS SCCA race car (sold)
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