[m240ragtop]

Lots of great threads on the M Performance diff, but I couldn't find one that had all the part numbers listed. My local BMW dealer gave me a quote of $4400 installed, the installation was about $840 of that. I'm fine with the installation fee but I should be able to do better on the parts. I have a 2020 M240i automatic, hoping another auto trans owner has had this done and can list off the part numbers. My dealer only gave me a verbal quote, so I couldn't get their part numbers.

They mentioned, the M performance diff, I know that is 33108659989.

Probably need new axle shaft seals, differential fluid, and drives haft coupling nut.

Thanks for any help,

Steve

[Rich.Wolfson]

Originally Posted by m240ragtop

...Probably need new axle shaft seals, differential fluid, and drives haft coupling nut.

Diff comes full with seals. Easy install if you have a lift!

///Rich

[jv92red]

Save some money and shop around. Here is a reputable vendor with a competitive price:
https://www.bimmerworld.com/M-Perfor...108659989.html

Any driveline shop can handle the install if you would rather outsource the labor.

[JMcLellan]

Check this out: I go to my local BMW dealer and then locate the M perf LSD. I add the diff and installation to my cart-- the price is $3486, LSD is about 2700, then the rest is installation. I would try to build this out through your dealer's website if you can. $4400 seems like a thousand bucks more than you should have to spend.

When I installed mine I bought the part through BMW Parts Hub for $2280 shipped. Then paid a local import shop $850 for install so I paid $3130 all-in.

[m240ragtop]

Thanks all for the replies.

I was able to login through the mybmw website. If I put the diff in my cart it gives me a discount of about 15%. So, $2,235.50 for the diff shipped to my dealer and $167.66 in sales tax, total of $2,403.16. The website also lists the dealer install at $412.50, which it says is an estimate and the dealer will determine the install cost. Dealer I itially quoted $840 for install, I can live with that.

Think I will pull the trigger on this through mybmw website and see what happens. Worst case is they refuse to do the install because I went around them and I have a new diff for $2,400 and just need to find an install shop. Best case they do the install for $850 and I am all set at $3,250 out of pocket.

[JMcLellan]

Originally Posted by m240ragtop

Thanks all for the replies.

I was able to login through the mybmw website. If I put the diff in my cart it gives me a discount of about 15%. So, $2,235.50 for the diff shipped to my dealer and $167.66 in sales tax, total of $2,403.16. The website also lists the dealer install at $412.50, which it says is an estimate and the dealer will determine the install cost. Dealer I itially quoted $840 for install, I can live with that.

Think I will pull the trigger on this through mybmw website and see what happens. Worst case is they refuse to do the install because I went around them and I have a new diff for $2,400 and just need to find an install shop. Best case they do the install for $850 and I am all set at $3,250 out of pocket.

Nice! I wanted to do the BMW dealer route using the online ordering but it wasn't available during the time I was wanting it done. Hope all goes well with the install. You will love how the car performs.