How to diagnose Mercedes-Benz Check Engine Light (CEL) problems Is your check engine light on? Didthe check engine light come on while driving? Don’t panic. When the check engine light turns on in your instrument cluster, the computer in your car has noticed that the engine is not running at …
Read More »Mercedes Transmission Problems, Limp Mode, No Shifting: Troubleshooting Tips
Common Mercedes-Benz Transmission Problems This article discusses the most common Mercedes-Benz transmission problems and how you can fix some of them. This troubleshooting guide will help you narrow down the transmission problem and teach you how to perform some repairs. If your transmission is stuck in gear and you are …
Read More »Where to Order New Replacement Key for Mercedes-Benz
Are you looking to get a new key made for your Mercedes-Benz? Did you lose all of your keys? That’s ok. If you own a newer Mercedes-Benz, you don’t need the old keys to order a new Mercedes key. Just follow the instructions below on how to order a new …
Read More »Mercedes-Benz Catalytic Converter Split and Oxygen Sensor Code: A Weld Repair
What Happened Recently, I had a check engine light for the O2 sensor on a Mercedes-Benz. The car also sounded like it had an exhaust leak. After getting the car up on the lift, I discovered that the catalytic converter was separated. I received a couple of quotes, one for …
Read More »How to Replace the Serpentine Belt, Tensioner and Idler Pulley on a Mercedes-Benz (M112 and M113)
This guide shows you how to: Replace the serpentine (Poly V) belt Replace the belt tensioner Replace the idler pulley Remove the belt as the first step for an alternator replacement or an A/C compressor job Which Engines and Models This applies to the M112 V6 and M113 V8 engines, …
Read More »How to Check for Bad Engine Mounts on a Mercedes-Benz
Are you wondering whether your Mercedes-Benz has bad engine mounts? Here is a simple way to check whether the engine mounts are worn or damaged. A common symptom of a worn engine mount is excessive cabin vibration while the vehicle is stopped in Drive. Before You Start This procedure requires …
Read More »Mercedes-Benz SLK R170 Problems: What to Check Before Buying an SLK230 or SLK320
The R170 Mercedes-Benz SLK caused real excitement at launch thanks to its electric folding hardtop, and it sold in large numbers from the first year. It launched in Europe in 1996 and reached the US in 1997 as a 1998 model: a two-seat, rear-wheel-drive roadster, first offered as the four-cylinder …
Read More »How to Change the Oil on a Mercedes-Benz: DIY Oil and Filter Change Instructions
This how-to article gives you step-by-step instructions for changing the oil and filter on your gasoline Mercedes-Benz. If you have a diesel, see our Mercedes-Benz diesel oil change guide. With some professional oil changes costing more than $200, many Mercedes-Benz owners choose to change the oil themselves. We recommend you …
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