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It's being changed out now under warranty. That is one complex casting! Not surprising there might be a bad spot in all that area and small corners..

Minor leak under the engine is NOT main seal or pan gasket. Diagnosed as an overly-porous pan: Tech cleaned everything, pressure testing found NO leaks, but he could see the pan essentially sweating oil! So, is the pan on a 4BW plastic, steel or alloy? In any case it's a major job to replace.

Well, MrBF, I do trust them. And cut the cards. And have found even the most trustworthy shops and people don't have all the information all the time. Particularly if the BW specs are different than regular CTs

Can't seem to find the comprehensive specs for stock street settings. Need to have them to be sure shop has Blackwing specs...

12,500 miles, tire shop noted "minor leak." No puddle on the ground, but concerning. Any others experience this early on the CT4BW?

Blackwing art..

Reviving this thread: Anyone report measurable differences with these filters? WONT TAP: any feedback? Some sources say the better airflow actually has the ECU reducing net output, but this doesn't smell right...

If you are a member of the VClub, post this tale of woe on their member-only page. Several Cadillac execs do monitor that site and have helped several of us with various things stuck in the mill....

Long story why mine is JSMOSBY. Original car with it was gray. It might be a trivia question which Civil War history buffs or professionals would answer. Yankees and the period-ignorant may request enlightenment.

Assuming the same setup as my 2023 there are no retainers behind front or back plate locations. Since the rear panel is cheap junk fiber, I drilled the holes a bit larger and put in the square push-in retainers. No major expansion, but the screws wont loosen. Front is same, but the material is...

Anyone do any on a 'wing? simple lines, art, whatever?

Thanks!!

Do you still have a link to the Amazon replacements, or the verbiage to search? thanks

Anyone seen any advantage over stock for Green intake air filters on 4BW? other than permanence of the filters?

I traded a GLA545 for the 4bw. Not much different from the CLA, and I agree with much of the OP's list. I was constantly reminded that the G/C are Mercedes entry level cars, and don't convey the quality of the next steps up. It was a fun little hotrod, especially with some minor tweaking, but...

As to my "good results" I saw a measurable increase in gas mileage and and not-so-measurable smoothness improvement in moderate acceleration. I'm not intending to use their oil, as it is not listed as licensed Dexos, just the additive in my 4BW. Redline, as mentioned above, is not on the Dexos...

Have used their oil additive in several cars with good results. What's the general opinion on Blackwing use??

404 parts has a black-edged front emblem. It's factory and modified but center section retains ACC sensor transparency. Removal: pull the old one off with Vicegrips from the top center.....

Well, tried to reach through and couldn't get to tabs. Just took a Vice Grip, grabbed the top center of the badge and pulled. Broke off the top of the badge, but it came right off. Tape around it if you're going to try it that way!!

Not really seeing how my fingers get to tabs. Did you loosen the top of the grille to get to the emblem from the top area? I suppose I will look at the replacement to get a better idea, but it seems the structure around the sensor prevents access...