Mercedes Repair Questions? Ask a Mechanic for Answers ASAP
Hi, welcome to Just Answer. My name is***** are two fairly common problems that will cause sudden, intermittent stalling on this model. The first is a faulty fuel pump relay. If the relay has not been replaced I would suggest doing so as it is not a very expensive part to try. The next is a faulty ignition control module. If the ignition module is faulty it will also cause sudden, intermittent stalling and is more likely to not start for 5-10 minutes. Ideally a test for spark from the ignition coil should be performed when the car will not start. If there is no spark from the ignition coil I would suggest replacing the ignition control module.
Please let me know if you have any questions.