Technical

The best OBD2 scanner for a Mercedes diesel is one that runs service functions such as AdBlue reset, DPF regeneration, and SCR live data, not one that only reads codes. A Mercedes diesel asks more of a scan tool than almost any gasoline car. Sooner or later, every BlueTEC, CDI, …

If the (Active Body Control) ABC light is ON or flashing, there is a good chance your suspension system may be low on hydraulic fluid. When the ABC fluid level gets too low, you may also notice a humming or whining noise from the engine. Minor suspension oil leaks can …

This guide will help you identify Mercedes-Benz head units, COMAND, radio, and stereo versions. Scroll down the list until you see the head unit that matches the one on your car. We have included a list of applicable models as general guidance. The quickest way to differentiate the radio on …

What is a Mercedes SAM module SAM stands for Signal Acquisition Module. A SAM module (Signal Actuation Module) receives data from sensors, switches, and controllers and can send data, actuate (activate) components, and monitor systems. Mercedes-Benz has been using SAM modules since the mid-90s. Symptoms of a defective Mercedes SAM …

Defective valve body and conductor plate issues have affected many Mercedes-Benz cars with 722.9 7G Tronic Automatic Transmissions. If these parts fail, they will require replacements to extend the life of the transmission. For the wider picture on this gearbox, see our guide to its common problems and solutions. The …

Is the Mercedes SRS light flashing? SRS stands for Supplemental Restraint System, or the SRS or Airbag Warning Light. This could be because the AirBag Control Unit is not programmed correctly. SRS Control Unit is not parameterized or, as some may refer, taught-in. This can cause the airbag/SRS light on …