Many enthusiasts are now buying these 2004 to mid-2010 high-performance Mercedes with little thought to the transmission. When the transmission goes into "limp-home mode," you may freak out - not know what to do - and if you take it to the dealer, it can be VERY expensive, and you will never know how well the repair was done. In August of 2023, Kent set out to remove some of the mysteries surrounding this very common 7-speed transmission and to come up with information and solutions so the DIY owner could fix it himself. This is a transmission pan and filter upgrade. It will increase the flow rate through your transmission. Watch the videos below for why you want to do this and a detailed description of what this upgrade kit includes.
Product Details
Kit Contents:
- Newer style deeper pan
- A new rubber pan gasket
- Genuine Mercedes Triple - Smart media filter
- Two new pan magnets
- New GREEN fill plug
- Six new aluminum stretch bolts
- Video instructions
This filter is a HUGE improvement over the original filter installed in the early first-generation transmissions. However, you have to install the deeper pan in order to install this TRIPLE filter. The newer style green fill pipe MUST be used when making this upgrade. If you use your old white pipe (which is taller than the green pipe). You will end up significantly overfilling your transmission after changing to this pan and filter. Always replace the pan bolts because they are aluminum and designed to stretch. Once used, you risk breaking them!
We even include a new set of magnets to be installed in the rear of the pan.
Once you install this, you must refill the transmission with the correct RED fluld. REMEMBER: You can upgrade the pan and filter but NOT the fluid. Kent recommends a full power drain of the fluid before refilling. This can be done with his pressure fill and drain kit, which can be purchased separately below. Installing this deeper pan, Mercedes triple filter, and draining ALL the fluid is the absolute best way to prolong the life of your early 2003 to 2010 7-speed transmission.
This kit is also available with the pressure fill tank included. Save $20. See related products below.
Related Products:
Early 722.9 Automatic Transmission Performance Upgrade with Full Drain and Fill Pressure Tank
Save $20 when you purchase these two kits together. Each can also be purchased separately. For a full description of each kit, click on the related products below. Each description will give you a complete summary of the specifications and usage.
722.9 Transmission Fluid Service Pressurized Fill Tank w/ Correct Fittings
This easy-to-operate ONE gallon pressure pump tank will help you fill your 722.9 transmission with minimal mess and fuss. It includes over 5 feet of hose ( 30 inches which are clear so you can see the flow rate.
Infrared Thermometer to Use When Checking Fluid Level in a 722.9 transmission
Since there are no dipsticks on these transmissions, the DIY way to check fluid level is from under the car with a touch-free thermometer to measure the heat of the transmission fluid BEFORE setting the correct level. Instructions are included with my full 722.9 transmission fill kit.
722.9 Transmission Fluid Service Fittings and Connecting Hose - Partial Kit
This kit will allow you to properly fill any 722.9 7 speed automatic transmission as well as other cars that use the underfill method.