When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Just wondering what you guys are changing out your differential fluid with? According to autohausaz.com liqui-moly 75w90 can be used. But I have read that it needs to be a GL4-GL5 match.
I plan on putting Liqui-moly in my transmission and transfer case after seeing how good their motor oil is...
FCP Euro now stocks the Liqui Moly GL4/5 for the diffs...they resolved their prior error in listing the incorrect fluid for it, and if you don't see it for your year model in results it's just an error and you can search it directly. It's $17/per liter.
FCP Euro now stocks the Liqui Moly GL4/5 for the diffs...they resolved their prior error in listing the incorrect fluid for it, and if you don't see it for your year model in results it's just an error and you can search it directly. It's $17/per liter.
Not sure if there are any different requirements for the Q7 compared with the B7 and B8 A4 platforms but i have used Motul Gear 300 and it has been great in those vehicles. It is also GL-4/5 https://www.motul.com/nl/en/products/gear-300-75w90
For newcomers and those still looking into this like myself, this is the link for a kit with the correct fluids for the front, rear, and transfer case for a 2017 Audi Q7 3.0T. I spent 3 days researching this and called Blauparts and the Audi dealership to cross-reference and confirm.
Beware, the Ravenol SLS 75W-140 GL-5 LS is NOT compatible with the center transfer case for these vehicles. The description incorrectly labels the Audi VW part number (Audi VW G 055 145 A2) for the transfer case fluid. The correct fluid for the transfer case is the Ravenol AWD-TOR Gear Oil and this one correctly lists the Audi VW part number and is indeed compatible.
Hope this helps someone! Literally made an account on here just to post this message to help others to not make the same mistake I made!
Hope this helps someone! Literally made an account on here just to post this message to help others to not make the same mistake I made!
Thanks for sharing! Just to clarify, though, 2017 is the 4M chassis, which may or may not be fully compatible with the previous 4L model it replaced. You should copy this on the "Q7 MK II Discussion" forum!
The first time I ordered for the diffs lubricants, for my '10, I bought the Ravenol (German lubricants) from same Blau Parts website described. At the time they had the best pricing on the lubricants I needed, and it was German-made...meeting my two basic criteria.
The one thing to be careful of on the 4L series is what lubricant goes into the transfer case housing, since that does vary between the 6spd vs 8spd transmissions. On my '10 TDI, it says to put ATF (same ATF spec as used for the 6spd transmission in it) into the transfer case, but on our '15 w/8spd tranny it says to use the 'transfer case' specific lubricant spec. The '15s 8spd tranny also uses a different spec of ATF.
Just pay attention to the details for your specific year model Q7; it's an easy DIY job, and super-duper-easy if you have air suspension. I rolled my steel susp Q7 up onto a high concrete curb to gain a bit of extra working clearance when I did the differential & transfer case fluid service. The air suspension '15 I just cranked up to max lift height and put into tire-change mode in MMI to lock the suspension (safety first!) to provide the needed working clearance below car.
In both cases, I used a big piece of cardboard on ground surface to make it easier ingress/egress and to move around, as well as catch any drips.
New Audi A6 Allroad Is The Market's Coolest Wagon: 9 Things to Know
Slideshow: Audi's latest A6 Allroad gets RS-style fenders, real off-road hardware, and enough personality to stand out in a market obsessed with crossovers.
Audi Recreates Crazy-Looking Speed Record Breaker From 1935
Slideshow: Audi has recreated one of the wildest machines of the pre-war speed-record era, reviving a streamlined V16 racer that originally exceeded 200 mph in 1935.
Differential fluid brand?
