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X1 E84 (2011 - 2015)
First generation BMW X1 availbe as a X1 28i with either sDrive (RWD) or xDrive (AWD) or the US exclusive I6 N55 powered X1 35i xDrive.

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Old 09-04-2016, 05:15 AM
Steve22 Steve22 is offline
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Location: London
Join Date: Apr 2016
Posts: 9
Mein Auto: BMW X1 2010
Differential fluid

Hi there, I have a leak at the rear diff, so am planning to change the seal, and replace the fluid , anyone knows what fluid I should use?

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Old 09-04-2016, 05:33 AM
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stonex1 stonex1 is offline
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Location: BC, Canada
Join Date: Oct 2012
Posts: 1,280
Mein Auto: 13' X1 35i
I'm not sure what oil is required, but am curious to know as well.
I think I would first search for diff oil in the E90 xdrive models if I couldn't find
anything specific for the X1.
I would also check your axel breather to make sure it's not stuck closed.
2013 X1
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Old 09-19-2016, 01:04 PM
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Reclaimer Reclaimer is online now
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Location: The Great White North
Join Date: Oct 2015
Posts: 1,823
Mein Auto: 2012 E84 x28i
From Realoem

BMW Synthetik OSP

Funny thing though, there is label that says Lifetime Oil - No oil change, but the oil is listed as a part for this configuration!
She said that to me once... about being a machine.

Last edited by Reclaimer; 09-19-2016 at 01:06 PM.
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Old 09-19-2016, 03:45 PM
0w40X1 0w40X1 is offline
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Location: Texas
Join Date: Jul 2013
Posts: 397
Mein Auto: 2014 X1 s28i Msport
I changed mine on my X1 s28i at 5k miles to see if any wear particles like on my Mazda RX8.

I had to make a stinger out of gallon suction plunger to get out, and it had no obvious metal.

I filled a little over a quart with Mobil 1 75w90 synthetic.

I'm pretty sure it's the right specs.
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