My wife had problem starting the E320 a couple of weeks ago and over the weekend I experienced the same. I had to press the gas pedal to get it to start. I did check the OVP and it already has been replaced with the replacement 000 540 67 52 (along with the wiring harness). It starts fine now but I would like to fix the problem before happening to my wife and kids again.
Thanks!

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68 280SE Coupe restored
01 Audi A8L
05 Volvo XC90 AWD
85 CJ7 (Rockcrawler) GM 5.3 Vortec
02 Excursion XLT 4X4 PSD 700lbs. torque
78 Jeep J-10 4x4 (project)
84 Jeep Wagoneer (donor vehicle)
02 Carson HD Car Hauler

David