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The BMW E46 ///M3 is the M version E46 and puts out an amazing 333 HP and 262 lb-ft of torque at stock specs! There are an amazing amount of modifications for both the coupe and convertible models so read up and get started modifying your cars today!

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Old 10-11-2012, 01:04 PM   #1
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Am I getting ripped off by BMW?

I took my 2006 in to BMW for a regular oil change and fluid top off at 35k and they said the differential is leaking slightly and eventually it will become an issue.

They quoted $1,190 to fix the issue and it seems like a ridiculous amount for a minor I wrong?

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Old 10-11-2012, 01:08 PM   #2
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You need to find out where the leak is from first, this changes the repair amount greatly.
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Old 10-11-2012, 01:19 PM   #3
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Diff seals are known to leak, however that price seems ridiculous. Find a reputable Indy shop and save a few hundred bucks
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Old 10-11-2012, 01:26 PM   #4
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At first blush, 1200 dollars doesn't seem out of line considering BMW shop labor rates hover around $140 per hour. Removing a diff from the carrier assembly, and axles is not exactly a 15 minute job. Like others have noted, call other dealers and indy shops to find the best price.
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Old 10-11-2012, 02:42 PM   #5
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Originally Posted by n3985 View Post
You need to find out where the leak is from first, this changes the repair amount greatly.
The dealer is going to be a ripoff for this, find a good independent.

There are 4 seals it could be leaking from, front (driveshaft), sides (axles), rear (cover).

The axle seals can be replaced easily without removing much:

The driveshaft and rear seals probably require pulling the whole differential:

Yet both of those look like 2-4hr jobs + parts/fluids, so $1200 sounds ridiculous unless the M3 diff seals are made of gold.

For reference, I had all the seals replaced on my Mercedes a few years ago for < $500 inc parts. To do that required pulling the axle shafts which is more involved than the M3 where they are just bolted on.
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