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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E21 (1975 - 1983)

E21 (1975 - 1983)

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  #1  
Old 11-25-2010, 11:24 AM
RoycE21 RoycE21 is offline
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Location: McKinney, tx
 
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Mein Auto: 1982 320i
320i change gear oil

Does anyone know how to change gear oil in a 1.8l 320i? Or at least an easy way to do it?
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  #2  
Old 11-29-2010, 10:49 AM
conv440 conv440 is offline
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Location: New York
 
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Mein Auto: 1983 320i
If you mean the differential fluid then it's actually pretty easy. I just did mine this weekend. I drove the rear of the car up on ramps. Crack open the filler plug on the diff cover with a hex socket, I forget what size 13MM? Get a drain pan and open the lower plug and drain the diff. Replace the lower plug and refill with gear oil. I needed about 2 quarts and used Mobil synthetic 75W90. All together took about 20 minutes including cleaning the diff housing.
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  #3  
Old 12-01-2010, 11:54 AM
RoycE21 RoycE21 is offline
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Location: McKinney, tx
 
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Mein Auto: 1982 320i
Thanks man. I was under my car yesterday and saw it once I jacked it up. Now I need to get a big enough socket or possibly an Allen wrench
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  #4  
Old 12-01-2010, 06:45 PM
conv440 conv440 is offline
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Location: New York
 
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Mein Auto: 1983 320i
No problem. Here's a pix after cleaning the diff cover.

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  #5  
Old 12-10-2010, 11:45 PM
asanjuan asanjuan is offline
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Location: Fairfield, California
 
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Mein Auto: 1981 320 S-Pack
Hi - Is there a gasket for the cover?
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  #6  
Old 12-13-2010, 09:50 AM
conv440 conv440 is offline
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Mein Auto: 1983 320i
Yes, there is a gasket for the cover part #2 in the picture. You don't need to remove the cover to do a oil change. There are 2 aluminum washers/gaskets on the drain & fill plugs #14 that should be replaced.
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Last edited by conv440; 12-13-2010 at 09:53 AM.
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