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CLS500

This may be a sign of a failing voltage regulator or potentially a bad grounding problem causing a draw on the system. The voltage regulator is a unit that regulates the charging of the battery by the alternator. Often times...

If the noise is heard when turning it could be the strut tower bushings. These are rubber bushings that ride on a bearing. They insulate the strut from your vehicle and aid in turning. Over time dirt gets between the...

Hi there. You would need to check the fuel pump relay (https://www.yourmechanic.com/services/fuel-pump-relay-replacement) and fuel pressure from both fuel pumps (https://www.yourmechanic.com/services/fuel-pump-replacement) (yes, there are 2). The pumps fail in an erratic fashion as you describe which may be why you are...

Without hearing the noise it will be difficult to give you an accurate recommendation. Rubber bushings and moving suspension components can cause these type of noises. Also rubber seals where body panels come together such as doors to body can...