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3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.

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Old 06-14-2005, 10:52 PM   #1 (permalink)
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Need some advice. I tried to change my O2 sensors after the cat on my '97 328i and I can't get the wrench on it because of the angle. They are directly on top of the exhaust and there is no way the O2 socket will fit. The crescent wrench (not the ideal tool but I couldn't find a wrench that large ... 22mm??) wouldn't get a good grip. How can I get to these??
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Old 06-15-2005, 01:28 AM   #2 (permalink)
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Your O2 sensors are in a different location than mine... I'd just remove the exhaust let it hang a bit and see if that will help... its rather easy unless your exhaust is old and rather rusted... try a few other tools... and remove the exhaust as the last resort...

Good Luck,

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Old 06-15-2005, 07:35 AM   #3 (permalink)
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Quote:
Originally posted by 97alpineM3@Jun 15 2005, 02:28 AM
Your O2 sensors are in a different location than mine... I'd just remove the exhaust let it hang a bit and see if that will help... its rather easy unless your exhaust is old and rather rusted... try a few other tools... and remove the exhaust as the last resort...

Good Luck,

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I did it this way also. I removed the rear two exhaust brackets off the muffler. However these were old and broke, so I had to make two new ones by drilling out the bolts and replacing them.

Remember, when you let the exhaust 'hang' you are putting weight and pressure on your header under the hood. Try to keep a jack stand directly under the exhaust just as it comes down out off the motor.

Cracked header = bad times.

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Old 06-15-2005, 10:59 AM   #4 (permalink)
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I have a 96 328 and had to replace one of the rears. I was able to do it with a crescent wrench.
Your right though, it is a tight space.
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Old 06-16-2005, 08:17 PM   #5 (permalink)
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Thanks for the replies. I found a 22mm wrench at AutoZone and I was able to get at them without dropping the exhaust.
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