How to add ATF to '07 GL450?
#1
Senior Member
Thread Starter
How to add ATF to '07 GL450?
How do you add Automatic Transmission Fluid to an '07 GL450. I can't find a dipstick/filler tube but there is a large Torx fitting on the rear side of the tranny. Is that where you fill it?
Last edited by 1xsculler; 04-29-2015 at 03:46 PM.
#2
Anything tranny related is better left to the dealer. For example a fluid change is $350-400 and knowing what is involved it is actually a deal anybody should take in a heartbeat.
Last edited by alx; 04-29-2015 at 07:50 AM.
#3
Senior Member
To expand on this, you need to buy an adapter that screws into the drain hole on the transmission pan. Now, when you unscrew that bolt, a few quarts of fluid are going to drain out first. Isn't this fun? I bought a Mityvac branded adapter off Amazon for about $14 shipped.
My suggestion is that if you need to add fluid, and are anywhere near needing a full drain and fill, that you do a complete transmission service (change out the 9L of fluid and the filter) since you'll be in there anyway.
The fluid is fairly expensive ($14-25 per liter) and you need at least 10 L to do a service. Also, the pan bolts are not reuseable and must be replaced. While not necessary, the torque converter drain bolt is easier to replace than to reuse, and cheap. A full service, DIY, costs about $250 and I believe the dealer usually charges $500+
I just did mine a month ago, and it was tedious and messy, but easy.
My suggestion is that if you need to add fluid, and are anywhere near needing a full drain and fill, that you do a complete transmission service (change out the 9L of fluid and the filter) since you'll be in there anyway.
The fluid is fairly expensive ($14-25 per liter) and you need at least 10 L to do a service. Also, the pan bolts are not reuseable and must be replaced. While not necessary, the torque converter drain bolt is easier to replace than to reuse, and cheap. A full service, DIY, costs about $250 and I believe the dealer usually charges $500+
I just did mine a month ago, and it was tedious and messy, but easy.