BMW A4S270R A4S310 Automatic Transmission Service Kit - Red Line/Mesitersatz 24111218899KIT

Designed to properly service GM A4S270R/310 (4L30-E) transmissions

If your BMW's transmission is feeling a little clunky or is hesitating to downshift or up shift it may be time for a transmission service. We know what you're thinking, my BMW has a "lifetime" fill. Well, we'll put it simply: there is no such thing.

Fluids break down over time as it goes through numerous heating and cooling cycles. One of the most expensive components on your BMw besides its engine is your transmission. Just like the engine, your transmission needs to have its oil changed to ensure proper operation and a reliable service life.

BMW changed their tune on "lifetime fills" and now list transmission servicing as an "extended service" (100,000+ miles). We even find this mileage to be unacceptable considering that most gear oil starts to break down around 30,000 miles. For this reason we recommend a transmission drain and fill every 30,000 miles or every 2 years for the best performance.

his kit is designed to do a basic drain and fill service. This method is less intrusive than a "transmission flush" which requires a machine and proper equipment. It is not uncommon for flush machines to damage transmissions when not operated correctly and we especially do not recommend a "flush" type service on a transmission that has 100,000+ miles on it. A drain and fill is a lot like changing engine oil and is a pretty straight forward task.

You will notice right away that your transmission shifts faster and operates smoother. You can take it a step further by doing multiple drain and fills over the course of 10,000 miles to ensure all old fluid is removed from the system.