W203 (2000-2007)

Instructions on replacing the power steering pump or the power steering reservoir on Mercedes-Benz V6 and V8 cylinder engines, such as the M112 and M113 engines. Symptoms of power steering failure include: Whining or squealing noises The steering wheel is difficult to turn Loss of steering assist Before replacing a …

Use this Mercedes-Benz wheel bolt pattern reference table to look up specifications by chassis, year, and model. The first number is the number of bolt holes. The second number is the pitch circle diameter in millimeters. For example, 5 × 112 means five bolt holes on a 112 mm circle. …

How do you fix a sagging headliner? This weekend, we repaired a sagging headliner in a Mercedes-Benz C-Class. This can affect many older Mercedes-Benz models, including the C-Class, E-Class, S-Class, and M-Class. We wanted to show you what we did. The fabric can also separate from the sunroof shade panel. Sagging …

  Are you trying to find the location of the O2 sensors in your Mercedes-Benz? Well, pictures are worth a thousand words, so here is one. Look at the picture; it will show where the O2 sensors are located. The diagram identifies Bank 1 Sensor 1, Bank 1 Sensor 2, …

Here are the instructions for replacing the front window regulator or the power window motor. A grinding or cable noise with little or no glass movement often indicates a failed window regulator. If the window is silent, test the fuse, switch, wiring, connector, and motor power and ground before replacing …

This guide will show you how to replace the Mercedes-Benz mass air flow (MAF) sensor. If you get any of these codes, P0100, P0101, P0102, P0103, and P0104, you most likely need your MAF replaced. Codes P0100 through P0104 indicate a MAF circuit or performance problem. Before replacing the sensor, …

The transmission 13-pin connector plug causes most transmission slipping or delayed engagement problems on the Mercedes-Benz 5-speed transmission. “A leaking connector sleeve can allow ATF into the electrical connector and wiring harness. If fluid contaminates the electrical contacts or migrates toward the transmission control module, transmission faults and communication problems …

Here is the list of fuse designations for the Mercedes-Benz  C-Class. It is a combined list of all the fuses, including pre-facelift and facelift models through 2007.  Scroll to the bottom of the list if you are wondering where the fuses are on the C-Class. This guide covers W203 C-Class …

Is your air conditioner A/C not working or blowing hot air? The air conditioning system can get very complicated in cars, but that doesn’t mean that you can’t perform some troubleshooting yourself. Maybe even charge the A/C system if needed. This article provides an overview of the A/C system, common …