1st Generation Mercedes-Benz A Class Combined Air Mass Meter and ECU Problems

The A-Class First (W168) Generation Mercedes-Benz was manufactured from 1997-200. The German hatchback featured a four-cylinder engine, and a 5-speed automatic, 5-speed manual, or 5-speed semi-automatic transmission. This compact car was popular, accruing over one million sales. Like any new vehicle, however, a few common issues have cropped up, including combined air mass meter and ECU problems.

Some owners are made aware of such issues when their vehicle fails a gas emission test. An engine warning light is another sign that could indicate problems with the air mass meter and electronic control unit. In the event of such malfunctions, this warning light could appear with or without power loss. Others drivers have complained of their Mercedes stalling as their vehicle nears a stop.

Remembering to regularly replace your vehicle’s air filter might decrease your risk of encountering these problems. Once damage has been caused, temporary remedies might include cleaning and degreasing the meter. Many owners have taken the DIY approach and applied WD40. This being said, some of these drivers have also reported breaking the sensor during disassembly, resulting in frustration and the potential for increased repair costs.

To save time and money, we recommend visiting an independent German auto repair shop. These experts will be able to diagnose and repair your Mercedes and determine, for example, if your W168 is in need of a new or rebuilt ECU. Due to their experience with your make and model, these experts will also be aware of any potential recalls or possibilities for goodwill compensation.

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