How to Solve the Ignition Delay Fault of Mercedes-Benz Camshaft?
2 Answers
To resolve the ignition delay fault of the Mercedes-Benz camshaft, it is necessary to remove the camshaft position sensor and calibrate the timing. Below are specific details about the causes of camshaft ignition delay faults: Insufficient oil supply pressure: If the oil pump fails to provide sufficient pressure due to prolonged use, or if the lubrication channels are blocked preventing oil from reaching the camshaft, or if the tightening torque of the bearing cap bolts is excessive, preventing oil from entering the camshaft clearance, all these can lead to abnormal wear of the camshaft. Abnormal wear: Abnormal wear of the camshaft increases the clearance between the camshaft and the bearing seat, causing axial displacement during camshaft movement, which results in abnormal noises.
Last time my Mercedes had this issue, the ignition delay was really frustrating, likely due to a faulty camshaft position sensor or mechanical component sticking. My first instinct was to plug in a diagnostic scanner to read the trouble codes. Using a computer tool connected to the Mercedes' common OBD port, if it showed codes like P0340, it would confirm a sensor issue. Next, I checked if the sensor wiring was loose or water-damaged, removed it for cleaning, and reinstalled it to test. If that didn’t work, the sensor itself was likely damaged and needed replacement—genuine Mercedes parts are pricier but more reliable, and installation requires careful alignment to avoid incorrect gaps. After the repair, ignition returned to normal, starting much faster, which also improves fuel efficiency and prevents engine damage. In short, don’t hesitate to get it fixed at a professional shop—safe driving is too important.
