W140 (1991-1998)

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, …

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 …

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 …

Problem: Interior Vibrations Are you feeling vibrations inside the cabin of your Mercedes? Often, MB owners feel seat vibrations that can’t be explained because the car runs great in most cases. Vibrations may be felt on the steering wheel or dash and are most noticeable when stopped at a red …

Have you ever wondered what maintenance you should perform on your Mercedes-Benz at a specific mileage? Follow these recommended service intervals and avoid things like this:   This is a rotor on an ML that I worked on. This Mercedes-Benz was driven for a long time without any care. Not …