RENN Motors

2015 GL350 BlueTec diesel, in for some minor tuning. We have an arsenal of tools for whatever job needs to be performed. Our services include online programming with Xentry factory tool, custom coding/flashing and even performance tuning. So give us a call and schedule your next service, repair or tuning session.

2022 GLB250 in for its first service!!! Rowe Motor Oil 0w20 and Mann filter. Service reset performed using the latest version of Xentry Diagnostics.

MSD80>MSD81 upgrade on the bench……. When done properly, it can make your customers very happy!!!! 😃 😊 😆 Programming used BMW ECU’s can sometimes be tricky but we can always find the right solution.

2020 GLE 350 with only 54k miles...... New/Reman cylinder head installed due to exhaust valve seats issue for cylinder 2 and 3. In addition to misfire codes, there were also codes for mixture formation, as seen on the second picture. Document .30-P-072328 can be accessed for more info. Customer was not a happy camper but I am sure she's glad to be back on the road....... enjoying her GLE350.