How to Remove the Catalytic Converter on a BMW E46

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If you own a BMW E46, it’s a good idea to have your catalytic converter checked at least once a year. While the catalytic converter is often created to be durable, it can become corroded or even punctured and stop working. If your catalytic converter is damaged or not working, in this writing you will be learning how to remove and change the catalytic converter on a BMW E46.

The most obvious sign of a bad catalyst is the smell of rotten eggs. If you somehow miss this symptom, you may also notice a big jump in the amount of fuel your car uses or a backfire when you accelerate.

How to remove the catalytic converter on a BMW E46

Removing The Catalytic Converter On A BMW E46
BMW E46

Fortunately this is not a complicated task, you can remove and change the catalytic converter of your BMW E46 yourself with a few steps:

  1. Put on your eye protector. You’ll be looking at the catalytic converter while you’re working on it, so the chance of getting road grime in your eyes is very high.
  1. Disconnect the battery loosening the battery cables with the socket wrench and pulling them completely out of the battery. Although it is highly unlikely that you will receive an electrical shock while working on your catalytic converter, it is a good idea to eliminate this possibility.
  1. Plug in your BMW E46 with your jack. Make sure to place the jack under the metal part of the car’s frame. You will damage the car body if you try to lift it by placing the jack under the body.
  1. Follow the exhaust pipe from the rear of your E46 to about three and a half feet towards the engine, this is where your catalytic converter is located.
  1. Examine the catalytic converter and notice that there are four bolts. Two at the front of the catalytic converter and two at the rear.
  1. Proceed to loosen the four screws turning the socket wrench counterclockwise.
  1. Remove the catalytic converter from the BMW E46 grabbing it from both sides and pulling it down and towards you.
  1. Gently tap the catalytic converter with a hammer in several spots if it appears to be stuck. Sometimes corrosion and road debris can cause the catalytic converter to stick to the exhaust pipe. Hitting it with the hammer can loosen it.

Tips

Disassembling and changing the catalytic converter on a BMW E46 can be a bit complicated in the end, at the time of removal, when you are hammering it out, try to use a wooden hammer, so you will cause less damage.

If you own a BMW E46, it’s a good idea to have your catalytic converter checked at least once a year. While the catalytic converter is often created to be durable, it can become corroded or even punctured and stop working. If your catalytic converter is damaged or not working, in this writing you will be learning how to remove and change the catalytic converter on a BMW E46.

The most obvious sign of a bad catalyst is the smell of rotten eggs. If you somehow miss this symptom, you may also notice a big jump in the amount of fuel your car uses or a backfire when you accelerate.

How to remove the catalytic converter on a BMW E46

Removing The Catalytic Converter On A BMW E46
BMW E46

Fortunately this is not a complicated task, you can remove and change the catalytic converter of your BMW E46 yourself with a few steps:

  1. Put on your eye protector. You’ll be looking at the catalytic converter while you’re working on it, so the chance of getting road grime in your eyes is very high.
  1. Disconnect the battery loosening the battery cables with the socket wrench and pulling them completely out of the battery. Although it is highly unlikely that you will receive an electrical shock while working on your catalytic converter, it is a good idea to eliminate this possibility.
  1. Plug in your BMW E46 with your jack. Make sure to place the jack under the metal part of the car’s frame. You will damage the car body if you try to lift it by placing the jack under the body.
  1. Follow the exhaust pipe from the rear of your E46 to about three and a half feet towards the engine, this is where your catalytic converter is located.
  1. Examine the catalytic converter and notice that there are four bolts. Two at the front of the catalytic converter and two at the rear.
  1. Proceed to loosen the four screws turning the socket wrench counterclockwise.
  1. Remove the catalytic converter from the BMW E46 grabbing it from both sides and pulling it down and towards you.
  1. Gently tap the catalytic converter with a hammer in several spots if it appears to be stuck. Sometimes corrosion and road debris can cause the catalytic converter to stick to the exhaust pipe. Hitting it with the hammer can loosen it.

Tips

Disassembling and changing the catalytic converter on a BMW E46 can be a bit complicated in the end, at the time of removal, when you are hammering it out, try to use a wooden hammer, so you will cause less damage.

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