maXbimmer Forums

maXbimmer Forums (http://www.maxbimmer.com/forums/index.php)
-   General Discussion (http://www.maxbimmer.com/forums/forumdisplay.php?f=2)
-   -   Dealer says VIN won't identify rear end type - What? (http://www.maxbimmer.com/forums/showthread.php?t=160119)

Macho Toy 10-05-2013 06:50 PM

Dealer says VIN won't identify rear end type - What?
 
Bought the car recently and had one of the guys on another forum run my VIN just to see what I have and was happy to learn that I apparently have a 25% LSD. With this info in hand I go to Maranello to get the OEM diff oil. Parts lady asks for my car's year, make & model and tells me it's not an LSD and insisted that only the M series have these according to her techs. I offered my VIN but she said there's no way to tell what diff I have with the VIN number and that she would not be responsible if I bought the wrong type of oil.

Ok fine, so I buy the recommended oil for an open diff and go home. Still not convinced, I put the car up on jacks and spin the wheels. They both turn in the same direction - WTH :eek:

So now totally confused, I turn to you guys for some input and suggestions. I want to put the correct oil in.

Dan

SickFinga 10-05-2013 07:12 PM

What car is that? Post your last 7 characters of the VIN.

By the way, LSD gear oil can be used in open-diffs, but open-diff should not be used on cars with LSD.

Macho Toy 10-05-2013 07:20 PM

Quote:

Originally Posted by SickFinga (Post 1626614)
What car is that? Post your last 7 characters of the VIN.

By the way, LSD gear oil can be used in open-diffs, but open-diff should not be used on cars with LSD.


Thanks I did not know that, If I had I would have bought the LSD type.

VIN is - AM70160

SickFinga 10-05-2013 07:44 PM

Quote:

Originally Posted by Macho Toy (Post 1626616)
Thanks I did not know that, If I had I would have bought the LSD type.

VIN is - AM70160

Definitely has an LSD. It could've been replaced with an open one, but not likely.

To make sure, look at the diff

http://cdn.shopify.com/s/files/1/000...over_large.jpg

There should be a tag

http://cdn.shopify.com/s/files/1/000..._tag_large.jpg

If it starts with an S, it's a limited slip.

Macho Toy 10-05-2013 07:53 PM

So can a VIN determine the original diff in a car? If so, can someone at a dealership tell me otherwise?

Wow! that diff looks immaculate. Aha, so that's what the tag looks like, I did see that on mine but didn't know it was a tag since it's all rusted beyond recognition. I'll try a wire brush and closer inspection.

Thanks again for the info

Dan

SickFinga 10-05-2013 08:05 PM

Quote:

Originally Posted by Macho Toy (Post 1626618)
So can a VIN determine the original diff in a car? If so, can someone at a dealership tell me otherwise?

Yes. Whoever dealt with your, doesn't know what he/she was talking about. Here is your build sheet straight from the BMW servers.

http://i.imgur.com/8g9f10C.jpg

By the way, do not waste your money buying fluids at a dealer. Go to either Canadian Tire, Napa or Parts Source and get a synthetic 75W140 gear oil that is approved for LSD.

Macho Toy 10-05-2013 08:27 PM

Cool SickFinga, I can't tell you the number of times I get "dismissed" by "licensed" mechanics and parts people when I mention the forums as my source of information. I will take this sheet with me back to the dealership and hopefully get this sorted out.

Thanks again,

Dan

TSI 10-05-2013 09:49 PM

If I can make a recommendation, use redline 75w90 API GL-5 oil. It's not too expensive, and it cured a bit of my diff lash.

jabela 10-06-2013 01:31 PM

I recommend JRP Auto as a cheap source for Redline fluids.
http://www.jrponline.com/webstore/in...link=contactus

Macho Toy 10-06-2013 02:16 PM

Thanks for the recommendation guys.

What's the difference between the 75W140 vs 75W90??? Do these have the friction modifier required for the LSD? Sorry for sounding like a noob but this is why I went to the dealership in the first place, thinking they would know best - go figure.

Dan

TSI 10-06-2013 03:48 PM

Quote:

Originally Posted by Macho Toy (Post 1626679)
Thanks for the recommendation guys.

What's the difference between the 75W140 vs 75W90??? Do these have the friction modifier required for the LSD? Sorry for sounding like a noob but this is why I went to the dealership in the first place, thinking they would know best - go figure.

Dan

Second what jabela said--JRP is great.
Any gl-5 oil has the modifier in it already, so it's lsd-ready!


All times are GMT -4. The time now is 10:28 AM.

Powered by vBulletin® Version 3.8.1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.