3rd Generation Mercedes-Benz CL Class Whining Noises

The Mercedes-Benz CL-Class W216 was manufactured from 2006-present. This German automobile is available as a 5-speed automatic and a 7-speed automatic, and it sports state-of-the-art technology including the Blind Spot Assist system and the Active Night Vision program. Despite these top-notch features, a few common issues occasionally take away from the pleasure of driving this Benz, such as a whining noise near the transmission.

Drivers experiencing this issue often note that the noise quiets once the car is moving. Temperature may or may not seem to be a factor, and the sound might get louder during acceleration. This noise can originate from the belt, the pulleys, or the ABC pump, which may need to be dampened. Even more likely, however, the problem is in your electronic diverter and smog pump. If this is the issue, the pump will need to be replaced.

This issue cannot simply be tolerated, because sooner or later the relay could burn out. Unfortunately, it is likely that no codes will be thrown, making this problem more difficult to diagnose. Some owners do attempt to repair their W216 on their own, lubricating each pulley, for example. Others attempt to troubleshoot the problem by switching out parts, which is can quickly become costly and frustrating.

We recommend consulting an independent German import garage, as they can offer knowledgeable and affordable solutions. These experts will have the proper tools and systems to pinpoint and safely remedy the CL-Class’s common problems, having you back on the road as soon as possible.

Search for a local, independent Mercedes-Benz repair shop with Mercedes-Benz mechanics that have dealer-level expertise at a fraction of the expense.