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  #1  
Old 10-29-2003, 01:01 AM
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Help- C220 differential fluid change

Hi-

I have read through the old posts on differential fluid changes, but I had a couple of model-specific questions. I have a 1995 C220.

1. Does the C220 really only require 0.7 quarts of fluid?
2. Does the C220 have a crush washer that needs to be replaced or are there just drain and fill plugs?
3. I read that the C280 has drain and fill plugs on opposits sides. Is this the same case with the C220?

Thanks very much for your help.

Eric
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  #2  
Old 10-29-2003, 09:12 AM
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where did you read .7 quarts figure? as far as I know all their diffs are listed at 1.1 liters which I think is more than .7 quarts.

I've only seen drain and fill plugs with no washer.

Drain and fill plugs are easy to locate on their respective sides, remember - open the fill plug first, and the fluid should fill to level with the drain hole. Stick a finger in their to feel the fluid level. Fill to fluid run out the drain hole.

This is what I do and have found on my car, I have done my rear diff three times and never had a problem
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  #3  
Old 10-29-2003, 09:26 PM
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Dear 95c220:

I have a c220 too, so here are my definite answers:

1. Does the C220 really only require 0.7 quarts of fluid?

No, it's about 1.1 quarts

2. Does the C220 have a crush washer that needs to be replaced or are there just drain and fill plugs?

No, both fill and drain plugs do not have any crush washer. They are simply two 14mm Allen bolts.

Be sure to get a breaker bar and remove the fill plug first.

Eric
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Old 10-29-2003, 10:33 PM
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Thanks for the replies so far- was looking for clarity on the plugs- are they on the same side, or different sides? I can see two sort of plug-type things, both on the passenger side of the diff, one up higher, and one lower, and I was wondering if these were the right plugs.

Thanks for the help- I love this forum.
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  #5  
Old 10-30-2003, 02:09 AM
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what weight of gearbox oil should be used and at what milage should it be changed??
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  #6  
Old 10-30-2003, 02:50 AM
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Yes, there are ONLY EXACTLY two 14mm Allen bolts around the differential unit, so there's nothing to be confused about. The higher plug is the fill plug and the lower one is the drain plug.

The gear oil should be any API GL5 75W-90 or 80W-90.

Do not use 80W-140 in your c220. This weight is only used for trucks or maybe racing cars.

Eric
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  #7  
Old 11-02-2003, 10:06 AM
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Thanks guys!
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