Bad Catalytic Converter Problem and Oxygen Sensor Code

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 an aftermarket part that cost $1400. The other option was to cut and fit a universal catalytic converter for $300-$400.

Before spending $$$, I decided to remove the whole catalytic converter. The insides were still in good condition, so I thought, why not fix the existing one? Welding the old catalytic converter fixed the exhaust leak and the O2 code.

Here is a picture of the catalytic converter split in half.

 

The ceramic structure was still intact. If this structure is destroyed, there is no point in trying to weld it back together. You would get a check engine light, and it is illegal to drive with a damaged catalytic converter.

 

Here it is welded. This is my second time welding, so don’t be too harsh on me.

 

Troubleshooting Faulty Oxygen Sensor

If you’re experiencing problems with your Mercedes-Benz, the YOUCANIC full system diagnostic scanner can be an invaluable tool for troubleshooting and diagnosing the issue. This scanner is designed specifically for Mercedes-Benz vehicles, allowing you to access and analyze data from your car’s various systems and modules.

With the YOUCANIC scanner, you can perform various diagnostic functions, including reading and clearing fault codes, monitoring live data, performing component activation tests, and more. This allows you to identify the root cause of the problem and take appropriate action to fix it, whether it involves replacing a faulty component, adjusting to a system setting, or performing more extensive repairs.

By using the YOUCANIC full system diagnostic scanner, you can save time and money by avoiding unnecessary trips to the mechanic and performing repairs yourself. Plus, with the ability to access real-time data and diagnostics, you can stay on top of your vehicle’s maintenance and prevent potential problems before they occur.