Mercedes-Benz C240 starting problem with recent stalling and check engine light on Mercedes-Benz C240

Submitted by Doxiemom · Jun 23, 2025
Published by RepairPal

Problem overview

Some Mercedes-Benz C240 owners report experiencing starting problems, recent stalling, and a check engine light. These issues may be linked to a failed crankshaft position sensor, which is known to cause stalling and difficulty starting the engine. Additionally, some owners encounter a no crank, no start situation characterized by a faint click under the hood, particularly in damp weather conditions. The check engine light typically indicates problems with the engine or fuel system, potentially triggered by emissions system issues, sensor malfunctions, or catalytic converter problems. To address these concerns, owners are advised to conduct diagnostic testing to identify the exact issues, which can cost between $114 and $144. If stalling is attributed to the crankshaft position sensor, replacing it may resolve the problems. For persistent issues, consulting a qualified Mercedes-Benz technician is recommended to ensure accurate diagnosis and effective repairs.

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Mercedes-Benz C240 vehicles with this problem

1 model year affected
Average mileage: 70,000 miles
(70,000 - 70,000)

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